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6527 Commits
Author | SHA1 | Message | Date | |
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Linus Torvalds
|
91f28da8c9 |
random32: make prandom_u32() less predictable
This is the cleanup of the latest series of prandom_u32 experimentations consisting in using SipHash instead of Tausworthe to produce the randoms used by the network stack. The changes to the files were kept minimal, and the controversial commit that used to take noise from the fast_pool ( |
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Linus Torvalds
|
d769139081 |
block-5.10-2020-10-24
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Willy Tarreau
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c6e169bc14 |
random32: add a selftest for the prandom32 code
Given that this code is new, let's add a selftest for it as well. It doesn't rely on fixed sets, instead it picks 1024 numbers and verifies that they're not more correlated than desired. Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/ Cc: George Spelvin <lkml@sdf.org> Cc: Amit Klein <aksecurity@gmail.com> Cc: Eric Dumazet <edumazet@google.com> Cc: "Jason A. Donenfeld" <Jason@zx2c4.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: tytso@mit.edu Cc: Florian Westphal <fw@strlen.de> Cc: Marc Plumb <lkml.mplumb@gmail.com> Signed-off-by: Willy Tarreau <w@1wt.eu> |
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Willy Tarreau
|
3744741ada |
random32: add noise from network and scheduling activity
With the removal of the interrupt perturbations in previous random32
change (random32: make prandom_u32() output unpredictable), the PRNG
has become 100% deterministic again. While SipHash is expected to be
way more robust against brute force than the previous Tausworthe LFSR,
there's still the risk that whoever has even one temporary access to
the PRNG's internal state is able to predict all subsequent draws till
the next reseed (roughly every minute). This may happen through a side
channel attack or any data leak.
This patch restores the spirit of commit
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George Spelvin
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c51f8f88d7 |
random32: make prandom_u32() output unpredictable
Non-cryptographic PRNGs may have great statistical properties, but are usually trivially predictable to someone who knows the algorithm, given a small sample of their output. An LFSR like prandom_u32() is particularly simple, even if the sample is widely scattered bits. It turns out the network stack uses prandom_u32() for some things like random port numbers which it would prefer are *not* trivially predictable. Predictability led to a practical DNS spoofing attack. Oops. This patch replaces the LFSR with a homebrew cryptographic PRNG based on the SipHash round function, which is in turn seeded with 128 bits of strong random key. (The authors of SipHash have *not* been consulted about this abuse of their algorithm.) Speed is prioritized over security; attacks are rare, while performance is always wanted. Replacing all callers of prandom_u32() is the quick fix. Whether to reinstate a weaker PRNG for uses which can tolerate it is an open question. Commit |
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Linus Torvalds
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fc03b2d6a9 |
drm fixes (round two) for 5.10-rc1
fbcon/fonts: - Two patches to prevent OOB access ttm: - fix for evicition value range check amdgpu: - Sienna Cichlid fixes - MST manager resource leak fix - GPU reset fix amdkfd: - Luxmark fix for Navi1x i915: - Tweak initial DPCD backlight.enabled value (Sean) - Initialize reserved MOCS indices (Ayaz) - Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville) - Support parsing of oversize batches (Chris) - Delay execlists processing for TGL (Chris) - Use the active reference on the vma during error capture (Chris) - Widen CSB pointer (Chris) - Wait for CSB entries on TGL (Chris) - Fix unwind for scratch page allocation (Chris) - Exclude low patches of stolen memory (Chris) - Force VT'd workarounds when running as a guest OS (Chris) - Drop runtime-pm assert from vpgu io accessors (Chris) -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJfkhyvAAoJEAx081l5xIa+3qIQAKjvgIvuoLix+bl/gkOHwymv QHTXVA3Gi4Rup778L3k1GNppQX4/LE42Of9wnsZIELxG0vxKl59JGzlWJVld/rtJ ZXfoT5kh7Hh7kkiXnC2s11aqQSsgr25lfsY8gOWSPIGfwOn07JSMTkqPWlbwrOz2 il6qlOlgfSNfXwn2NxSTzGxZMrgOyUvKNZczRXU9gSuuoTsEo4bAvS7/vEN4hazX DFQAZfd82PfcdAIkVzk/gOoaCQ6a9YgjOzg1RQ4gKhrj8UaWu4gUyJwWPjSMnLrh uP2RM3gU54MhVF3jHt+D0Trv2ti2zStD9wc4AEJwOVQZtcDSsgGduOdUs5Xc/1l5 dBOvpumBmNxsYbVvvThijNeSx6Y5ybzI3iUp8SLDftiRZtwsXds2aRaskuVgMqj4 MSBdOiZqoJudLjwCBHWKe328+r00X+f14Vi30Y0cy4VW59NxLG5D7qjc5BGqJw1q J3FQ/9uDh0lWbeKT/grapjP43IWcLApykZa3Rn6p2w0mW2+8Wht/WbrFYyNYGlzf aNS9RnknTaMYWpvZUZLVG83dJpn6Y9ooHa9L/blMzfCxpF6ftEYf+Iq2x8s0gprz tIq0xsGvBacsnQIOWRuHjuF87zibVbDp9ba+x78F/woyUqEhip+lBXaPofp132gQ HtIdQewvG9KcLZcoluO4 =rAUM -----END PGP SIGNATURE----- Merge tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm Pull more drm fixes from Dave Airlie: "This should be the last round of things for rc1, a bunch of i915 fixes, some amdgpu, more font OOB fixes and one ttm fix just found reading code: fbcon/fonts: - Two patches to prevent OOB access ttm: - fix for evicition value range check amdgpu: - Sienna Cichlid fixes - MST manager resource leak fix - GPU reset fix amdkfd: - Luxmark fix for Navi1x i915: - Tweak initial DPCD backlight.enabled value (Sean) - Initialize reserved MOCS indices (Ayaz) - Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville) - Support parsing of oversize batches (Chris) - Delay execlists processing for TGL (Chris) - Use the active reference on the vma during error capture (Chris) - Widen CSB pointer (Chris) - Wait for CSB entries on TGL (Chris) - Fix unwind for scratch page allocation (Chris) - Exclude low patches of stolen memory (Chris) - Force VT'd workarounds when running as a guest OS (Chris) - Drop runtime-pm assert from vpgu io accessors (Chris)" * tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm: (31 commits) drm/amdgpu: correct the cu and rb info for sienna cichlid drm/amd/pm: remove the average clock value in sysfs drm/amd/pm: fix pp_dpm_fclk Revert drm/amdgpu: disable sienna chichlid UMC RAS drm/amd/pm: fix pcie information for sienna cichlid drm/amdkfd: Use same SQ prefetch setting as amdgpu drm/amd/swsmu: correct wrong feature bit mapping drm/amd/psp: Fix sysfs: cannot create duplicate filename drm/amd/display: Avoid MST manager resource leak. drm/amd/display: Revert "drm/amd/display: Fix a list corruption" drm/amdgpu: update golden setting for sienna_cichlid drm/amd/swsmu: add missing feature map for sienna_cichlid drm/amdgpu: correct the gpu reset handling for job != NULL case drm/amdgpu: add rlc iram and dram firmware support drm/amdgpu: add function to program pbb mode for sienna cichlid drm/i915: Drop runtime-pm assert from vgpu io accessors drm/i915: Force VT'd workarounds when running as a guest OS drm/i915: Exclude low pages (128KiB) of stolen from use drm/i915/gt: Onion unwind for scratch page allocation failure drm/ttm: fix eviction valuable range check. ... |
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Linus Torvalds
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746b25b1aa |
Kbuild updates for v5.10
- Support 'make compile_commands.json' to generate the compilation database more easily, avoiding stale entries - Support 'make clang-analyzer' and 'make clang-tidy' for static checks using clang-tidy - Preprocess scripts/modules.lds.S to allow CONFIG options in the module linker script - Drop cc-option tests from compiler flags supported by our minimal GCC/Clang versions - Use always 12-digits commit hash for CONFIG_LOCALVERSION_AUTO=y - Use sha1 build id for both BFD linker and LLD - Improve deb-pkg for reproducible builds and rootless builds - Remove stale, useless scripts/namespace.pl - Turn -Wreturn-type warning into error - Fix build error of deb-pkg when CONFIG_MODULES=n - Replace 'hostname' command with more portable 'uname -n' - Various Makefile cleanups -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAl+RfS0VHG1hc2FoaXJv eUBrZXJuZWwub3JnAAoJED2LAQed4NsGG1QP/2hzoMzK1YXErPUhGrhYU1rxz7Nu HkLTIkyKF1HPwSJf5XyNW/FTBI4SDlkNoVg/weEDCS1yFxxpvQLIck8ChzA1kIIM P+1IfBWOTzqn91XsapU2zwSno3gylphVchVIvYAB3oLUotGeMSluy1cQtBRzyA5D rj2Q7H8fzkzk3YoBcBC/BOKDlfo/usqQ1X/gsfRFwN/BJxeZSYoujNBE7KtHaDsd 8K/ggBIqmST4NBn+M8c11d8CxzvWbtG1gq3EkUL5nG8T13DsGn1EFC0SPt85bkvv f9YywfJi37HixhZzK6tXYjN/PWoiEY6z90mhd0NtZghQT7kQMiTQ3sWrM8dX3ssf phBzO94uFQDjhyxOaSSsCoI/TIciAPo4+G8PNjcaEtj63IEfhEz/dnlstYwY5Y9P Pp3aZtVjSGJwGW2u2EUYj6paFVqjf6DXQjQKPNHnsYCEidIvFTjjguRGvx9gl6mx yd8oseOsAtOEf0alRe9MMdvN17O3UrRAxgBdap7fktg02TLVRGxZIbuwKmBf29ho ORl9zeFkYBn6XQFyuItJoXy/kYFyHDaBEPYCRQcY4dwqcjZIiAc/FhYbqYthJ59L 5vLN2etmDIVSuUv1J5nBqHHGCqJChykbqg7riQ651dCNKw4gZB8ctCay2lXhBXMg 1mqOcoG5WWL7//F+ =tZRN -----END PGP SIGNATURE----- Merge tag 'kbuild-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Support 'make compile_commands.json' to generate the compilation database more easily, avoiding stale entries - Support 'make clang-analyzer' and 'make clang-tidy' for static checks using clang-tidy - Preprocess scripts/modules.lds.S to allow CONFIG options in the module linker script - Drop cc-option tests from compiler flags supported by our minimal GCC/Clang versions - Use always 12-digits commit hash for CONFIG_LOCALVERSION_AUTO=y - Use sha1 build id for both BFD linker and LLD - Improve deb-pkg for reproducible builds and rootless builds - Remove stale, useless scripts/namespace.pl - Turn -Wreturn-type warning into error - Fix build error of deb-pkg when CONFIG_MODULES=n - Replace 'hostname' command with more portable 'uname -n' - Various Makefile cleanups * tag 'kbuild-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits) kbuild: Use uname for LINUX_COMPILE_HOST detection kbuild: Only add -fno-var-tracking-assignments for old GCC versions kbuild: remove leftover comment for filechk utility treewide: remove DISABLE_LTO kbuild: deb-pkg: clean up package name variables kbuild: deb-pkg: do not build linux-headers package if CONFIG_MODULES=n kbuild: enforce -Werror=return-type scripts: remove namespace.pl builddeb: Add support for all required debian/rules targets builddeb: Enable rootless builds builddeb: Pass -n to gzip for reproducible packages kbuild: split the build log of kallsyms kbuild: explicitly specify the build id style scripts/setlocalversion: make git describe output more reliable kbuild: remove cc-option test of -Werror=date-time kbuild: remove cc-option test of -fno-stack-check kbuild: remove cc-option test of -fno-strict-overflow kbuild: move CFLAGS_{KASAN,UBSAN,KCSAN} exports to relevant Makefiles kbuild: remove redundant CONFIG_KASAN check from scripts/Makefile.kasan kbuild: do not create built-in objects for external module builds ... |
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Linus Torvalds
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f56e65dff6 |
Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull initial set_fs() removal from Al Viro: "Christoph's set_fs base series + fixups" * 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: Allow a NULL pos pointer to __kernel_read fs: Allow a NULL pos pointer to __kernel_write powerpc: remove address space overrides using set_fs() powerpc: use non-set_fs based maccess routines x86: remove address space overrides using set_fs() x86: make TASK_SIZE_MAX usable from assembly code x86: move PAGE_OFFSET, TASK_SIZE & friends to page_{32,64}_types.h lkdtm: remove set_fs-based tests test_bitmap: remove user bitmap tests uaccess: add infrastructure for kernel builds with set_fs() fs: don't allow splice read/write without explicit ops fs: don't allow kernel reads and writes without iter ops sysctl: Convert to iter interfaces proc: add a read_iter method to proc proc_ops proc: cleanup the compat vs no compat file ops proc: remove a level of indentation in proc_get_inode |
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Linus Torvalds
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c4d6fe7311 |
XArray updates for 5.9
- Fix the test suite after introduction of the local_lock - Fix a bug in the IDA spotted by Coverity - Change the API that allows the workingset code to delete a node - Fix xas_reload() when dealing with entries that occupy multiple indices - Add a few more tests to the test suite - Fix an unsigned int being shifted into an unsigned long -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEejHryeLBw/spnjHrDpNsjXcpgj4FAl+OzzAACgkQDpNsjXcp gj5YFgf/cV99dyPaal7AfMwhVwFcuVjIRH4S/VeOHkjS2QT1lpu3ffqfKALVR8vU 3IObM3oDCmLk0mYz9O+V/udVJoBYWiduI0LZhR6+V5ZrDjbw/d4VdCbwOplpeF5x rntyI9r8f5d4LxBJ/moLjsosc1KfCzyVnV389eZRvZ8Muxuyc73WdAwZZZfD79nY 66gScEXQokU99zqJJ1nWfh05XTcTsKF25fVBGMLZTUBAytoFyPuC/kO2z8Uq9lEi Ug6gDClskSB7A2W5gvprMcoUAVYcHfTb0wqJD5/MhkHyoTdcWdW8Re0kssXvD86V KwlBdYQ/JuskgY/hbynZ/FP3p8+t1Q== =12E/ -----END PGP SIGNATURE----- Merge tag 'xarray-5.9' of git://git.infradead.org/users/willy/xarray Pull XArray updates from Matthew Wilcox: - Fix the test suite after introduction of the local_lock - Fix a bug in the IDA spotted by Coverity - Change the API that allows the workingset code to delete a node - Fix xas_reload() when dealing with entries that occupy multiple indices - Add a few more tests to the test suite - Fix an unsigned int being shifted into an unsigned long * tag 'xarray-5.9' of git://git.infradead.org/users/willy/xarray: XArray: Fix xas_create_range for ranges above 4 billion radix-tree: fix the comment of radix_tree_next_slot() XArray: Fix xas_reload for multi-index entries XArray: Add private interface for workingset node deletion XArray: Fix xas_for_each_conflict documentation XArray: Test marked multiorder iterations XArray: Test two more things about xa_cmpxchg ida: Free allocated bitmap in error path radix tree test suite: Fix compilation |
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Peilin Ye
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272d708951 |
Fonts: Support FONT_EXTRA_WORDS macros for font_6x8
Recently, in commit |
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Linus Torvalds
|
7cf726a594 |
linux-kselftest-kunit-5.10-rc1
This Kunit update for Linux 5.10-rc1 consists of: - add Kunit to kernel_init() and remove KUnit from init calls entirely. This addresses the concern Kunit would not work correctly during late init phase. - add a linker section where KUnit can put references to its test suites. This patch is the first step in transitioning to dispatching all KUnit tests from a centralized executor rather than having each as its own separate late_initcall. - add a centralized executor to dispatch tests rather than relying on late_initcall to schedule each test suite separately. Centralized execution is for built-in tests only; modules will execute tests when loaded. - convert bitfield test to use KUnit framework - Documentation updates for naming guidelines and how kunit_test_suite() works. - add test plan to KUnit TAP format -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl+Mr68ACgkQCwJExA0N Qxy7HxAAuToPP6uUHwTC3KzVVE4hjP9a3t4hiD7kP/gI0umN+2nrccm6Vx6E+r9t Jkjiv9Yxj3riOkE5jJ8KriAx228mwz3N1yBEDfpp+8iCWOK3iOuFKKTTWOoZY4hf Enlf7n4Yp2TOEmIH0xwh/H67zl0+3FwT3fGWC6DDPXHuw+X+mGphCl9XPB70rZcT q/s0dwx1CmWBm30MgFXN+SZ7CgLP13lRAvkVO4t56/O1SkTbpCe7U1zqT2p5UoOY x7qvzs3pdCaWbpCsAqFWr46iECDHuVQjIgLuddOF/OgWVcCZlv7T7ESd7IDPHUPx DD3zYG0ODV0jKZHmpwkSojSbu3z6v5FnfhLpAcaHoEMBeRu5UIar7EjPHwqrqiU7 JqE7dBECmcD308sr9u0w44DK15nmsD3+njrBQ/AJmsWdg0wtnMvA01nAHKObbk0n 33aIu4Iny1dH35/rt9dV2DKT09f5r0ANCjoJMX8gu/li66FHGfULOaqr6KLLqi5X VPgHCKzyT9nD+Bc2LYzRWmhhAj+5Iwyglgpe9ZiOlPQ5i+hLvfPPAZxVYSbVA1Sk aVZi+ibKUqHSBfXcaLf/OKX7Csf4zni3F+WfFT5ZIC4Y6iEF+0tvS2HW2/pcUAN/ OSPYYmyqhwYIl8tvbQENgBsyU/K1rECxJpqWAznJLRCebkY5a/s= =0Sco -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-kunit-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull more Kunit updates from Shuah Khan: - add Kunit to kernel_init() and remove KUnit from init calls entirely. This addresses the concern that Kunit would not work correctly during late init phase. - add a linker section where KUnit can put references to its test suites. This is the first step in transitioning to dispatching all KUnit tests from a centralized executor rather than having each as its own separate late_initcall. - add a centralized executor to dispatch tests rather than relying on late_initcall to schedule each test suite separately. Centralized execution is for built-in tests only; modules will execute tests when loaded. - convert bitfield test to use KUnit framework - Documentation updates for naming guidelines and how kunit_test_suite() works. - add test plan to KUnit TAP format * tag 'linux-kselftest-kunit-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE lib: kunit: add bitfield test conversion to KUnit Documentation: kunit: add a brief blurb about kunit_test_suite kunit: test: add test plan to KUnit TAP format init: main: add KUnit to kernel init kunit: test: create a single centralized executor for all tests vmlinux.lds.h: add linker section for KUnit test suites Documentation: kunit: Add naming guidelines |
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Linus Torvalds
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41eea65e2a |
Merge tag 'core-rcu-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU changes from Ingo Molnar: - Debugging for smp_call_function() - RT raw/non-raw lock ordering fixes - Strict grace periods for KASAN - New smp_call_function() torture test - Torture-test updates - Documentation updates - Miscellaneous fixes [ This doesn't actually pull the tag - I've dropped the last merge from the RCU branch due to questions about the series. - Linus ] * tag 'core-rcu-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits) smp: Make symbol 'csd_bug_count' static kernel/smp: Provide CSD lock timeout diagnostics smp: Add source and destination CPUs to __call_single_data rcu: Shrink each possible cpu krcp rcu/segcblist: Prevent useless GP start if no CBs to accelerate torture: Add gdb support rcutorture: Allow pointer leaks to test diagnostic code rcutorture: Hoist OOM registry up one level refperf: Avoid null pointer dereference when buf fails to allocate rcutorture: Properly synchronize with OOM notifier rcutorture: Properly set rcu_fwds for OOM handling torture: Add kvm.sh --help and update help message rcutorture: Add CONFIG_PROVE_RCU_LIST to TREE05 torture: Update initrd documentation rcutorture: Replace HTTP links with HTTPS ones locktorture: Make function torture_percpu_rwsem_init() static torture: document --allcpus argument added to the kvm.sh script rcutorture: Output number of elapsed grace periods rcutorture: Remove KCSAN stubs rcu: Remove unused "cpu" parameter from rcu_report_qs_rdp() ... |
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Linus Torvalds
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a1e16bc7d5 |
RDMA 5.10 pull request
The typical set of driver updates across the subsystem: - Driver minor changes and bug fixes for mlx5, efa, rxe, vmw_pvrdma, hns, usnic, qib, qedr, cxgb4, hns, bnxt_re - Various rtrs fixes and updates - Bug fix for mlx4 CM emulation for virtualization scenarios where MRA wasn't working right - Use tracepoints instead of pr_debug in the CM code - Scrub the locking in ucma and cma to close more syzkaller bugs - Use tasklet_setup in the subsystem - Revert the idea that 'destroy' operations are not allowed to fail at the driver level. This proved unworkable from a HW perspective. - Revise how the umem API works so drivers make fewer mistakes using it - XRC support for qedr - Convert uverbs objects RWQ and MW to new the allocation scheme - Large queue entry sizes for hns - Use hmm_range_fault() for mlx5 On Demand Paging - uverbs APIs to inspect the GID table instead of sysfs - Move some of the RDMA code for building large page SGLs into lib/scatterlist -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAl+J37MACgkQOG33FX4g mxrKfRAAnIecwdE8df0yvVU5k0Eg6qVjMy9MMHq4va9m7g6GpUcNNI0nIlOASxH2 l+9vnUQS3ebgsPeECaDYzEr0hh/u53+xw2g4WV5ts/hE8KkQ6erruXb9kasCe8yi 5QWJ9K36T3c03Cd3EeH6JVtytAxuH42ombfo9BkFLPVyfG/R2tsAzvm5pVi73lxk 46wtU1Bqi4tsLhyCbifn1huNFGbHp08OIBPAIKPUKCA+iBRPaWS+Dpi+93h3g3Bp oJwDhL9CBCGcHM+rKWLzek3Dy87FnQn7R1wmTpUFwkK+4AH3U/XazivhX035w1vL YJyhakVU0kosHlX9hJTNKDHJGkt0YEV2mS8dxAuqilFBtdnrVszb5/MirvlzC310 /b5xCPSEusv9UVZV0G4zbySVNA9knZ4YaRiR3VDVMLKl/pJgTOwEiHIIx+vs3ejk p8GRWa1SjXw5LfZEQcq39J689ljt6xjCTonyuBSv7vSQq5v8pjBxvHxiAe2FIa2a ZyZeSCYoSh0SwJQukO2VO7aprhHP3TcCJ/987+X03LQ8tV2VWPktHqm62YCaDcOl fgiQuQdPivRjDDkJgMfDWDGKfZeHoWLKl5XsJhWByt0lablVrsvc+8ylUl1UI7gI 16hWB/Qtlhfwg10VdApn+aOFpIS+s5P4XIp8ik57MZO+VeJzpmE= =LKpl -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull rdma updates from Jason Gunthorpe: "A usual cycle for RDMA with a typical mix of driver and core subsystem updates: - Driver minor changes and bug fixes for mlx5, efa, rxe, vmw_pvrdma, hns, usnic, qib, qedr, cxgb4, hns, bnxt_re - Various rtrs fixes and updates - Bug fix for mlx4 CM emulation for virtualization scenarios where MRA wasn't working right - Use tracepoints instead of pr_debug in the CM code - Scrub the locking in ucma and cma to close more syzkaller bugs - Use tasklet_setup in the subsystem - Revert the idea that 'destroy' operations are not allowed to fail at the driver level. This proved unworkable from a HW perspective. - Revise how the umem API works so drivers make fewer mistakes using it - XRC support for qedr - Convert uverbs objects RWQ and MW to new the allocation scheme - Large queue entry sizes for hns - Use hmm_range_fault() for mlx5 On Demand Paging - uverbs APIs to inspect the GID table instead of sysfs - Move some of the RDMA code for building large page SGLs into lib/scatterlist" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (191 commits) RDMA/ucma: Fix use after free in destroy id flow RDMA/rxe: Handle skb_clone() failure in rxe_recv.c RDMA/rxe: Move the definitions for rxe_av.network_type to uAPI RDMA: Explicitly pass in the dma_device to ib_register_device lib/scatterlist: Do not limit max_segment to PAGE_ALIGNED values IB/mlx4: Convert rej_tmout radix-tree to XArray RDMA/rxe: Fix bug rejecting all multicast packets RDMA/rxe: Fix skb lifetime in rxe_rcv_mcast_pkt() RDMA/rxe: Remove duplicate entries in struct rxe_mr IB/hfi,rdmavt,qib,opa_vnic: Update MAINTAINERS IB/rdmavt: Fix sizeof mismatch MAINTAINERS: CISCO VIC LOW LATENCY NIC DRIVER RDMA/bnxt_re: Fix sizeof mismatch for allocation of pbl_tbl. RDMA/bnxt_re: Use rdma_umem_for_each_dma_block() RDMA/umem: Move to allocate SG table from pages lib/scatterlist: Add support in dynamic allocation of SG table from pages tools/testing/scatterlist: Show errors in human readable form tools/testing/scatterlist: Rejuvenate bit-rotten test RDMA/ipoib: Set rtnl_link_ops for ipoib interfaces RDMA/uverbs: Expose the new GID query API to user space ... |
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Linus Torvalds
|
49dc6fbce3 |
kgdb patches for 5.10-rc1
A fairly modest set of changes for this cycle. Of particular note are an earlycon fix from Doug Anderson and my own changes to get kgdb/kdb to honour the kprobe blocklist. The later creates a safety rail that strongly encourages developers not to place breakpoints in, for example, arch specific trap handling code. Also included are a couple of small fixes and tweaks: an API update, eliminate a coverity dead code warning, improved handling of search during multi-line printk and a couple of typo corrections. Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEELzVBU1D3lWq6cKzwfOMlXTn3iKEFAl+IdyAACgkQfOMlXTn3 iKHeTw//RDAWm0IU00z9+ZlTyksTk0vePuYKwgEm8zp+XYvY0NvpgWyZ5MWd8b3K WJmsTfXMHNoPCg3464XCrQDyIhrfhxk0nrdOpgbsQMb7HdjYrnltPdG3l8W9kvVv MjMH98QOBaYAY75nd8pGoPVTOmODrhowWo6+y4me2CnJGKOOV/yHmctBhlOJhbeo TCUIDP/NmC63N8Oziteym1TZ5dhschBb/85qEb72wXaiGEZTaVC9GEFEgCqfADHX 51KxbtZoJWirbXu2aYaK5MHEb/0NWPMItiER7y8ZrTiPHMRre4N5DpCMpKpp3/qd YRtEnNnT+Ay0ijCt2FjznSsEh2ecLI0qSO4QDQz320QJCj7qgcjJ0++yEayrzz8W IxCbwkUP8X5m1srXSxvOTKfuu29wiMCqNkJA0rgjpA2u4Yn5KO0ZRmBoHtW1Sq8E MhbRTixU/vFYosjd/mKubj/f4DFrMILo+FJTqdewBUhT/Q6Vr9l660JzvwWnKKJF e1EHNYtWo4J+EkL9z++5d9PzDl0d56DcE8rfH53Dkg075Wnma3tdq2Z7WxT3M7EP K3U32BI9obu+lPHxl4FtAobCIDjP6NtmmMo3zzzA1fPtXNzAjy7qZ+Ss6POQppkn 7v+PFYdFJ8VKo3PNxMWnFhgwSDOYYxCPjCxs+bjaMBvHNVgg2Ig= =x91W -----END PGP SIGNATURE----- Merge tag 'kgdb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux Pull kgdb updates from Daniel Thompson: "A fairly modest set of changes for this cycle. Of particular note are an earlycon fix from Doug Anderson and my own changes to get kgdb/kdb to honour the kprobe blocklist. The later creates a safety rail that strongly encourages developers not to place breakpoints in, for example, arch specific trap handling code. Also included are a couple of small fixes and tweaks: an API update, eliminate a coverity dead code warning, improved handling of search during multi-line printk and a couple of typo corrections" * tag 'kgdb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux: kdb: Fix pager search for multi-line strings kernel: debug: Centralize dbg_[de]activate_sw_breakpoints kgdb: Add NOKPROBE labels on the trap handler functions kgdb: Honour the kprobe blocklist when setting breakpoints kernel/debug: Fix spelling mistake in debug_core.c kdb: Use newer api for tasklist scanning kgdb: Make "kgdbcon" work properly with "kgdb_earlycon" kdb: remove unnecessary null check of dbg_io_ops |
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Linus Torvalds
|
09a31a7e37 |
MIPS updates for v5.10:
- removed support for PNX833x alias NXT_STB22x - included Ingenic SoC support into generic MIPS kernels - added support for new Ingenic SoCs - converted workaround selection to use Kconfig - replaced old boot mem functions by memblock_* - enabled COP2 usage in kernel for Loongson64 to make usage of usage of 16byte load/stores possible - cleanups and fixes -----BEGIN PGP SIGNATURE----- iQJOBAABCAA4FiEEbt46xwy6kEcDOXoUeZbBVTGwZHAFAl+Jk/MaHHRzYm9nZW5k QGFscGhhLmZyYW5rZW4uZGUACgkQeZbBVTGwZHDjyA/9EAEb8woPRsEfbQE8GLgT vW2y2/fSHFJHoYY/t9+G81lJVKsg9TXQ9LyNk3WSU6+a6qELVqmnHY7+e43rSkfG qaxMRJOmwsMU7NWQOy1OSyESHidsAXrGYMY40TKrcClyVbS/Ob6wZ5QbBp+MTEsU ane8Yq/QTS60xIxsS0SZSiQpqzumUn7oHAwCAlqcqo26tV94mtrtsFG4pReqI2gh Bxs2ZoQYdx1/rPGXHV74fwP3Iz1Rwq3Z38FCyK7ME98cTEiLxYs1/ztgL1y0IC07 F3Dv3wmPtCGZtNyqDJxs7lHsbi74owSyoueywNeOA+YV8IzkOCEW0XpgL7vI2gPL OIi+LbH7MXt3P14h5ekzK+dSILg3yNFD152PmGxpUVzVhfDCw+uyUHzHdhZSCF/J aldlDm1wtUV5PacruVbH26amownTsfdei+WTtgGN3QAISmnLjUghsplPZE6KWbGW uPPpuIA2pTwW2FQdXL/WwGZm1k44ii5zX1Cjc55AZISZOzFXqklbuEZbMEM5O76N EFR+zOd4+wueOZOI7vpBTmKSSY/r12Ve25hbMMYeY0G3bbsubcIIIHHRxhdPp/+R 8t+PTC9//bT9r/OKdGV6TDsSJmSZWfaaNd30actDHpss8ruUlNxwWv7awp/z0sOs U+R5CAaVvzQlhxkzdO+M03w= =Aa/Q -----END PGP SIGNATURE----- Merge tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS updates from Thomas Bogendoerfer: - removed support for PNX833x alias NXT_STB22x - included Ingenic SoC support into generic MIPS kernels - added support for new Ingenic SoCs - converted workaround selection to use Kconfig - replaced old boot mem functions by memblock_* - enabled COP2 usage in kernel for Loongson64 to make use of 16byte load/stores possible - cleanups and fixes * tag 'mips_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (92 commits) MIPS: DEC: Restore bootmem reservation for firmware working memory area MIPS: dec: fix section mismatch bcm963xx_tag.h: fix duplicated word mips: ralink: enable zboot support MIPS: ingenic: Remove CPU_SUPPORTS_HUGEPAGES MIPS: cpu-probe: remove MIPS_CPU_BP_GHIST option bit MIPS: cpu-probe: introduce exclusive R3k CPU probe MIPS: cpu-probe: move fpu probing/handling into its own file MIPS: replace add_memory_region with memblock MIPS: Loongson64: Clean up numa.c MIPS: Loongson64: Select SMP in Kconfig to avoid build error mips: octeon: Add Ubiquiti E200 and E220 boards MIPS: SGI-IP28: disable use of ll/sc in kernel MIPS: tx49xx: move tx4939_add_memory_regions into only user MIPS: pgtable: Remove used PAGE_USERIO define MIPS: alchemy: Share prom_init implementation MIPS: alchemy: Fix build breakage, if TOUCHSCREEN_WM97XX is disabled MIPS: process: include exec.h header in process.c MIPS: process: Add prototype for function arch_dup_task_struct MIPS: idle: Add prototype for function check_wait ... |
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Vitor Massaru Iha
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294a7f1613 |
lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE
A build condition was missing around a compilation test, this compilation
test comes from the original test_bitfield code.
And removed unnecessary code for this test.
Fixes:
|
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Linus Torvalds
|
c4cf498dc0 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "155 patches. Subsystems affected by this patch series: mm (dax, debug, thp, readahead, page-poison, util, memory-hotplug, zram, cleanups), misc, core-kernel, get_maintainer, MAINTAINERS, lib, bitops, checkpatch, binfmt, ramfs, autofs, nilfs, rapidio, panic, relay, kgdb, ubsan, romfs, and fault-injection" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (155 commits) lib, uaccess: add failure injection to usercopy functions lib, include/linux: add usercopy failure capability ROMFS: support inode blocks calculation ubsan: introduce CONFIG_UBSAN_LOCAL_BOUNDS for Clang sched.h: drop in_ubsan field when UBSAN is in trap mode scripts/gdb/tasks: add headers and improve spacing format scripts/gdb/proc: add struct mount & struct super_block addr in lx-mounts command kernel/relay.c: drop unneeded initialization panic: dump registers on panic_on_warn rapidio: fix the missed put_device() for rio_mport_add_riodev rapidio: fix error handling path nilfs2: fix some kernel-doc warnings for nilfs2 autofs: harden ioctl table ramfs: fix nommu mmap with gaps in the page cache mm: remove the now-unnecessary mmget_still_valid() hack mm/gup: take mmap_lock in get_dump_page() binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot coredump: rework elf/elf_fdpic vma_dump_size() into common helper coredump: refactor page range dumping into common helper coredump: let dump_emit() bail out on short writes ... |
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Albert van der Linde
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4d0e9df5e4 |
lib, uaccess: add failure injection to usercopy functions
To test fault-tolerance of user memory access functions, introduce fault injection to usercopy functions. If a failure is expected return either -EFAULT or the total amount of bytes that were not copied. Signed-off-by: Albert van der Linde <alinde@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by: Alexander Potapenko <glider@google.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Marco Elver <elver@google.com> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Christoph Hellwig <hch@lst.de> Link: http://lkml.kernel.org/r/20200831171733.955393-3-alinde@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Albert van der Linde
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2c739ced58 |
lib, include/linux: add usercopy failure capability
Patch series "add fault injection to user memory access", v3. The goal of this series is to improve testing of fault-tolerance in usages of user memory access functions, by adding support for fault injection. syzkaller/syzbot are using the existing fault injection modes and will use this particular feature also. The first patch adds failure injection capability for usercopy functions. The second changes usercopy functions to use this new failure capability (copy_from_user, ...). The third patch adds get/put/clear_user failures to x86. This patch (of 3): Add a failure injection capability to improve testing of fault-tolerance in usages of user memory access functions. Add CONFIG_FAULT_INJECTION_USERCOPY to enable faults in usercopy functions. The should_fail_usercopy function is to be called by these functions (copy_from_user, get_user, ...) in order to fail or not. Signed-off-by: Albert van der Linde <alinde@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by: Alexander Potapenko <glider@google.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Marco Elver <elver@google.com> Cc: Christoph Hellwig <hch@lst.de> Link: http://lkml.kernel.org/r/20200831171733.955393-1-alinde@google.com Link: http://lkml.kernel.org/r/20200831171733.955393-2-alinde@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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George Popescu
|
6a6155f664 |
ubsan: introduce CONFIG_UBSAN_LOCAL_BOUNDS for Clang
When the kernel is compiled with Clang, -fsanitize=bounds expands to -fsanitize=array-bounds and -fsanitize=local-bounds. Enabling -fsanitize=local-bounds with Clang has the unfortunate side-effect of inserting traps; this goes back to its original intent, which was as a hardening and not a debugging feature [1]. The same feature made its way into -fsanitize=bounds, but the traps remained. For that reason, -fsanitize=bounds was split into 'array-bounds' and 'local-bounds' [2]. Since 'local-bounds' doesn't behave like a normal sanitizer, enable it with Clang only if trapping behaviour was requested by CONFIG_UBSAN_TRAP=y. Add the UBSAN_BOUNDS_LOCAL config to Kconfig.ubsan to enable the 'local-bounds' option by default when UBSAN_TRAP is enabled. [1] http://lists.llvm.org/pipermail/llvm-dev/2012-May/049972.html [2] http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20131021/091536.html Suggested-by: Marco Elver <elver@google.com> Signed-off-by: George Popescu <georgepope@android.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: David Brazdil <dbrazdil@google.com> Reviewed-by: Marco Elver <elver@google.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Michal Marek <michal.lkml@markovi.net> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Kees Cook <keescook@chromium.org> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: https://lkml.kernel.org/r/20200922074330.2549523-1-georgepope@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Tobias Jordan
|
904542dc56 |
lib/crc32.c: fix trivial typo in preprocessor condition
Whether crc32_be needs a lookup table is chosen based on CRC_LE_BITS.
Obviously, the _be function should be governed by the _BE_ define.
This probably never pops up as it's hard to come up with a configuration
where CRC_BE_BITS isn't the same as CRC_LE_BITS and as nobody is using
bitwise CRC anyway.
Fixes:
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Dan Carpenter
|
f3c9d0a3fe |
lib/test_hmm.c: fix an error code in dmirror_allocate_chunk()
This is supposed to return false on failure, not a negative error code. Fixes: 170e38548b81 ("mm/hmm/test: use after free in dmirror_allocate_chunk()") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Dan Williams <dan.j.williams@intel.com> Link: https://lkml.kernel.org/r/20201010200812.GA1886610@mwanda Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Miaohe Lin
|
1d339638a9 |
lib/percpu_counter.c: use helper macro abs()
Use helper macro abs() to simplify the "x >= t || x <= -t" cmp. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200927122746.5964-1-linmiaohe@huawei.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christophe JAILLET
|
6ed9b92e29 |
lib/scatterlist.c: avoid a double memset
'sgl' is zeroed a few lines below in 'sg_init_table()'. There is no need to clear it twice. Remove the redundant initialization. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200920071544.368841-1-christophe.jaillet@wanadoo.fr Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Stephen Boyd
|
3b6742618e |
lib/idr.c: document calling context for IDA APIs mustn't use locks
The documentation for these functions indicates that callers don't need to hold a lock while calling them, but that documentation is only in one place under "IDA Usage". Let's state the same information on each IDA function so that it's clear what the calling context requires. Furthermore, let's document ida_simple_get() with the same information so that callers know how this API works. Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Tri Vo <trong@android.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Link: https://lkml.kernel.org/r/20200910055246.2297797-1-swboyd@chromium.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Randy Dunlap
|
8d8472cfde |
lib/mpi/mpi-bit.c: fix spello of "functions"
Fix typo/spello of "functions". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/8df15173-a6df-9426-7cad-a2d279bf1170@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Randy Dunlap
|
2d0469814a |
lib: test_sysctl: delete duplicated words
Drop the repeated word "the". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200823040520.1999-1-rdunlap@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Randy Dunlap
|
408a93a2bb |
lib: syscall: delete duplicated words
Drop the repeated word "the". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200823040514.26136-1-rdunlap@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Randy Dunlap
|
e0656501a6 |
lib: radix-tree: delete duplicated words
Drop the repeated word "be". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200823040508.26086-1-rdunlap@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Randy Dunlap
|
4e20ace06f |
lib: earlycpio: delete duplicated words
Drop the repeated word "the". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200823040455.25995-1-rdunlap@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Randy Dunlap
|
dde57fe01a |
lib: dynamic_queue_limits: delete duplicated words + fix typo
Drop the repeated word "the". Fix spelling of "excess". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200823040449.25946-1-rdunlap@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Randy Dunlap
|
2f22385fb1 |
lib: decompress_bunzip2: delete duplicated words
Drop the repeated word "how". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200823040436.25852-1-rdunlap@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Randy Dunlap
|
f1e594acb1 |
lib: libcrc32c: delete duplicated words
Drop the repeated word "the". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200823040430.25807-1-rdunlap@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Randy Dunlap
|
197d6c1dde |
lib: bitmap: delete duplicated words
Drop the repeated word "an". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200823040424.25760-1-rdunlap@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andy Shevchenko
|
b296a6d533 |
kernel.h: split out min()/max() et al. helpers
kernel.h is being used as a dump for all kinds of stuff for a long time. Here is the attempt to start cleaning it up by splitting out min()/max() et al. helpers. At the same time convert users in header and lib folder to use new header. Though for time being include new header back to kernel.h to avoid twisted indirected includes for other existing users. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Joe Perches <joe@perches.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lkml.kernel.org/r/20200910164152.GA1891694@smile.fi.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Matthew Wilcox (Oracle)
|
8fc75643c5 |
XArray: add xas_split
In order to use multi-index entries for huge pages in the page cache, we need to be able to split a multi-index entry (eg if a file is truncated in the middle of a huge page entry). This version does not support splitting more than one level of the tree at a time. This is an acceptable limitation for the page cache as we do not expect to support order-12 pages in the near future. [akpm@linux-foundation.org: export xas_split_alloc() to modules] [willy@infradead.org: fix xarray split] Link: https://lkml.kernel.org/r/20200910175450.GV6583@casper.infradead.org [willy@infradead.org: fix xarray] Link: https://lkml.kernel.org/r/20201001233943.GW20115@casper.infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Qian Cai <cai@lca.pw> Cc: Song Liu <songliubraving@fb.com> Link: https://lkml.kernel.org/r/20200903183029.14930-3-willy@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Matthew Wilcox (Oracle)
|
57417cebc9 |
XArray: add xa_get_order
Patch series "Fix read-only THP for non-tmpfs filesystems". As described more verbosely in the [3/3] changelog, we can inadvertently put an order-0 page in the page cache which occupies 512 consecutive entries. Users are running into this if they enable the READ_ONLY_THP_FOR_FS config option; see https://bugzilla.kernel.org/show_bug.cgi?id=206569 and Qian Cai has also reported it here: https://lore.kernel.org/lkml/20200616013309.GB815@lca.pw/ This is a rather intrusive way of fixing the problem, but has the advantage that I've actually been testing it with the THP patches, which means that it sees far more use than it does upstream -- indeed, Song has been entirely unable to reproduce it. It also has the advantage that it removes a few patches from my gargantuan backlog of THP patches. This patch (of 3): This function returns the order of the entry at the index. We need this because there isn't space in the shadow entry to encode its order. [akpm@linux-foundation.org: export xa_get_order to modules] Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Qian Cai <cai@lca.pw> Cc: Song Liu <songliubraving@fb.com> Link: https://lkml.kernel.org/r/20200903183029.14930-1-willy@infradead.org Link: https://lkml.kernel.org/r/20200903183029.14930-2-willy@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jason Gunthorpe
|
9a40401cfa |
lib/scatterlist: Do not limit max_segment to PAGE_ALIGNED values
The main intention of the max_segment argument to __sg_alloc_table_from_pages() is to match the DMA layer segment size set by dma_set_max_seg_size(). Restricting the input to be page aligned makes it impossible to just connect the DMA layer to this API. The only reason for a page alignment here is because the algorithm will overshoot the max_segment if it is not a multiple of PAGE_SIZE. Simply fix the alignment before starting and don't expose this implementation detail to the callers. A future patch will completely remove SCATTERLIST_MAX_SEGMENT. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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Douglas Gilbert
|
b2a182a402 |
sgl_alloc_order: fix memory leak
sgl_alloc_order() can fail when 'length' is large on a memory constrained system. When order > 0 it will potentially be making several multi-page allocations with the later ones more likely to fail than the earlier one. So it is important that sgl_alloc_order() frees up any pages it has obtained before returning NULL. In the case when order > 0 it calls the wrong free page function and leaks. In testing the leak was sufficient to bring down my 8 GiB laptop with OOM. Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Linus Torvalds
|
9ff9b0d392 |
networking changes for the 5.10 merge window
Add redirect_neigh() BPF packet redirect helper, allowing to limit stack traversal in common container configs and improving TCP back-pressure. Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain. Expand netlink policy support and improve policy export to user space. (Ge)netlink core performs request validation according to declared policies. Expand the expressiveness of those policies (min/max length and bitmasks). Allow dumping policies for particular commands. This is used for feature discovery by user space (instead of kernel version parsing or trial and error). Support IGMPv3/MLDv2 multicast listener discovery protocols in bridge. Allow more than 255 IPv4 multicast interfaces. Add support for Type of Service (ToS) reflection in SYN/SYN-ACK packets of TCPv6. In Multi-patch TCP (MPTCP) support concurrent transmission of data on multiple subflows in a load balancing scenario. Enhance advertising addresses via the RM_ADDR/ADD_ADDR options. Support SMC-Dv2 version of SMC, which enables multi-subnet deployments. Allow more calls to same peer in RxRPC. Support two new Controller Area Network (CAN) protocols - CAN-FD and ISO 15765-2:2016. Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit kernel problem. Add TC actions for implementing MPLS L2 VPNs. Improve nexthop code - e.g. handle various corner cases when nexthop objects are removed from groups better, skip unnecessary notifications and make it easier to offload nexthops into HW by converting to a blocking notifier. Support adding and consuming TCP header options by BPF programs, opening the doors for easy experimental and deployment-specific TCP option use. Reorganize TCP congestion control (CC) initialization to simplify life of TCP CC implemented in BPF. Add support for shipping BPF programs with the kernel and loading them early on boot via the User Mode Driver mechanism, hence reusing all the user space infra we have. Support sleepable BPF programs, initially targeting LSM and tracing. Add bpf_d_path() helper for returning full path for given 'struct path'. Make bpf_tail_call compatible with bpf-to-bpf calls. Allow BPF programs to call map_update_elem on sockmaps. Add BPF Type Format (BTF) support for type and enum discovery, as well as support for using BTF within the kernel itself (current use is for pretty printing structures). Support listing and getting information about bpf_links via the bpf syscall. Enhance kernel interfaces around NIC firmware update. Allow specifying overwrite mask to control if settings etc. are reset during update; report expected max time operation may take to users; support firmware activation without machine reboot incl. limits of how much impact reset may have (e.g. dropping link or not). Extend ethtool configuration interface to report IEEE-standard counters, to limit the need for per-vendor logic in user space. Adopt or extend devlink use for debug, monitoring, fw update in many drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx, dpaa2-eth). In mlxsw expose critical and emergency SFP module temperature alarms. Refactor port buffer handling to make the defaults more suitable and support setting these values explicitly via the DCBNL interface. Add XDP support for Intel's igb driver. Support offloading TC flower classification and filtering rules to mscc_ocelot switches. Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as fixed interval period pulse generator and one-step timestamping in dpaa-eth. Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3) offload. Add Lynx PHY/PCS MDIO module, and convert various drivers which have this HW to use it. Convert mvpp2 to split PCS. Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as 7-port Mediatek MT7531 IP. Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver, and wcn3680 support in wcn36xx. Improve performance for packets which don't require much offloads on recent Mellanox NICs by 20% by making multiple packets share a descriptor entry. Move chelsio inline crypto drivers (for TLS and IPsec) from the crypto subtree to drivers/net. Move MDIO drivers out of the phy directory. Clean up a lot of W=1 warnings, reportedly the actively developed subsections of networking drivers should now build W=1 warning free. Make sure drivers don't use in_interrupt() to dynamically adapt their code. Convert tasklets to use new tasklet_setup API (sadly this conversion is not yet complete). Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAl+ItRwACgkQMUZtbf5S IrtTMg//UxpdR/MirT1DatBU0K/UGAZY82hV7F/UC8tPgjfHZeHvWlDFxfi3YP81 PtPKbhRZ7DhwBXefUp6nY3UdvjftrJK2lJm8prJUPSsZRye8Wlcb7y65q7/P2y2U Efucyopg6RUrmrM0DUsIGYGJgylQLHnMYUl/keCsD4t5Bp4ksyi9R2t5eitGoWzh r3QGdbSa0AuWx4iu0i+tqp6Tj0ekMBMXLVb35dtU1t0joj2KTNEnSgABN3prOa8E iWYf2erOau68Ogp3yU3miCy0ZU4p/7qGHTtzbcp677692P/ekak6+zmfHLT9/Pjy 2Stq2z6GoKuVxdktr91D9pA3jxG4LxSJmr0TImcGnXbvkMP3Ez3g9RrpV5fn8j6F mZCH8TKZAoD5aJrAJAMkhZmLYE1pvDa7KolSk8WogXrbCnTEb5Nv8FHTS1Qnk3yl wSKXuvutFVNLMEHCnWQLtODbTST9DI/aOi6EctPpuOA/ZyL1v3pl+gfp37S+LUTe owMnT/7TdvKaTD0+gIyU53M6rAWTtr5YyRQorX9awIu/4Ha0F0gYD7BJZQUGtegp HzKt59NiSrFdbSH7UdyemdBF4LuCgIhS7rgfeoUXMXmuPHq7eHXyHZt5dzPPa/xP 81P0MAvdpFVwg8ij2yp2sHS7sISIRKq17fd1tIewUabxQbjXqPc= =bc1U -----END PGP SIGNATURE----- Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: - Add redirect_neigh() BPF packet redirect helper, allowing to limit stack traversal in common container configs and improving TCP back-pressure. Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain. - Expand netlink policy support and improve policy export to user space. (Ge)netlink core performs request validation according to declared policies. Expand the expressiveness of those policies (min/max length and bitmasks). Allow dumping policies for particular commands. This is used for feature discovery by user space (instead of kernel version parsing or trial and error). - Support IGMPv3/MLDv2 multicast listener discovery protocols in bridge. - Allow more than 255 IPv4 multicast interfaces. - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK packets of TCPv6. - In Multi-patch TCP (MPTCP) support concurrent transmission of data on multiple subflows in a load balancing scenario. Enhance advertising addresses via the RM_ADDR/ADD_ADDR options. - Support SMC-Dv2 version of SMC, which enables multi-subnet deployments. - Allow more calls to same peer in RxRPC. - Support two new Controller Area Network (CAN) protocols - CAN-FD and ISO 15765-2:2016. - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit kernel problem. - Add TC actions for implementing MPLS L2 VPNs. - Improve nexthop code - e.g. handle various corner cases when nexthop objects are removed from groups better, skip unnecessary notifications and make it easier to offload nexthops into HW by converting to a blocking notifier. - Support adding and consuming TCP header options by BPF programs, opening the doors for easy experimental and deployment-specific TCP option use. - Reorganize TCP congestion control (CC) initialization to simplify life of TCP CC implemented in BPF. - Add support for shipping BPF programs with the kernel and loading them early on boot via the User Mode Driver mechanism, hence reusing all the user space infra we have. - Support sleepable BPF programs, initially targeting LSM and tracing. - Add bpf_d_path() helper for returning full path for given 'struct path'. - Make bpf_tail_call compatible with bpf-to-bpf calls. - Allow BPF programs to call map_update_elem on sockmaps. - Add BPF Type Format (BTF) support for type and enum discovery, as well as support for using BTF within the kernel itself (current use is for pretty printing structures). - Support listing and getting information about bpf_links via the bpf syscall. - Enhance kernel interfaces around NIC firmware update. Allow specifying overwrite mask to control if settings etc. are reset during update; report expected max time operation may take to users; support firmware activation without machine reboot incl. limits of how much impact reset may have (e.g. dropping link or not). - Extend ethtool configuration interface to report IEEE-standard counters, to limit the need for per-vendor logic in user space. - Adopt or extend devlink use for debug, monitoring, fw update in many drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx, dpaa2-eth). - In mlxsw expose critical and emergency SFP module temperature alarms. Refactor port buffer handling to make the defaults more suitable and support setting these values explicitly via the DCBNL interface. - Add XDP support for Intel's igb driver. - Support offloading TC flower classification and filtering rules to mscc_ocelot switches. - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as fixed interval period pulse generator and one-step timestamping in dpaa-eth. - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3) offload. - Add Lynx PHY/PCS MDIO module, and convert various drivers which have this HW to use it. Convert mvpp2 to split PCS. - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as 7-port Mediatek MT7531 IP. - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver, and wcn3680 support in wcn36xx. - Improve performance for packets which don't require much offloads on recent Mellanox NICs by 20% by making multiple packets share a descriptor entry. - Move chelsio inline crypto drivers (for TLS and IPsec) from the crypto subtree to drivers/net. Move MDIO drivers out of the phy directory. - Clean up a lot of W=1 warnings, reportedly the actively developed subsections of networking drivers should now build W=1 warning free. - Make sure drivers don't use in_interrupt() to dynamically adapt their code. Convert tasklets to use new tasklet_setup API (sadly this conversion is not yet complete). * tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits) Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH" net, sockmap: Don't call bpf_prog_put() on NULL pointer bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo bpf, sockmap: Add locking annotations to iterator netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements net: fix pos incrementment in ipv6_route_seq_next net/smc: fix invalid return code in smcd_new_buf_create() net/smc: fix valid DMBE buffer sizes net/smc: fix use-after-free of delayed events bpfilter: Fix build error with CONFIG_BPFILTER_UMH cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info bpf: Fix register equivalence tracking. rxrpc: Fix loss of final ack on shutdown rxrpc: Fix bundle counting for exclusive connections netfilter: restore NF_INET_NUMHOOKS ibmveth: Identify ingress large send packets. ibmveth: Switch order of ibmveth_helper calls. cxgb4: handle 4-tuple PEDIT to NAT mode translation selftests: Add VRF route leaking tests ... |
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Linus Torvalds
|
bbf6259903 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial updates from Jiri Kosina: "The latest advances in computer science from the trivial queue" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: xtensa: fix Kconfig typo spelling.txt: Remove some duplicate entries mtd: rawnand: oxnas: cleanup/simplify code selftests: vm: add fragment CONFIG_GUP_BENCHMARK perf: Fix opt help text for --no-bpf-event HID: logitech-dj: Fix spelling in comment bootconfig: Fix kernel message mentioning CONFIG_BOOT_CONFIG MAINTAINERS: rectify MMP SUPPORT after moving cputype.h scif: Fix spelling of EACCES printk: fix global comment lib/bitmap.c: fix spello fs: Fix missing 'bit' in comment |
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Linus Torvalds
|
93b694d096 |
drm next for 5.10-rc1
New driver: Cadence MHDP8546 DisplayPort bridge driver core: - cross-driver scatterlist cleanups - devm_drm conversions - remove drm_dev_init - devm_drm_dev_alloc conversion ttm: - lots of refactoring and cleanups bridges: - chained bridge support in more drivers panel: - misc new panels scheduler: - cleanup priority levels displayport: - refactor i915 code into helpers for nouveau i915: - split into display and GT trees - WW locking refactoring in GEM - execbuf2 extension mechanism - syncobj timeline support - GEN 12 HOBL display powersaving - Rocket Lake display additions - Disable FBC on Tigerlake - Tigerlake Type-C + DP improvements - Hotplug interrupt refactoring amdgpu: - Sienna Cichlid updates - Navy Flounder updates - DCE6 (SI) support for DC - Plane rotation enabled - TMZ state info ioctl - PCIe DPC recovery support - DC interrupt handling refactor - OLED panel fixes amdkfd: - add SMI events for thermal throttling - SMI interface events ioctl update - process eviction counters radeon: - move to dma_ for allocations - expose sclk via sysfs msm: - DSI support for sm8150/sm8250 - per-process GPU pagetable support - Displayport support mediatek: - move HDMI phy driver to PHY - convert mtk-dpi to bridge API - disable mt2701 tmds tegra: - bridge support exynos: - misc cleanups vc4: - dual display cleanups ast: - cleanups gma500: - conversion to GPIOd API hisilicon: - misc reworks ingenic: - clock handling and format improvements mcde: - DSI support mgag200: - desktop g200 support mxsfb: - i.MX7 + i.MX8M - alpha plane support panfrost: - devfreq support - amlogic SoC support ps8640: - EDID from eDP retrieval tidss: - AM65xx YUV workaround virtio: - virtio-gpu exported resources rcar-du: - R8A7742, R8A774E1 and R8A77961 support - YUV planar format fixes - non-visible plane handling - VSP device reference count fix - Kconfig fix to avoid displaying disabled options in .config -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJfh579AAoJEAx081l5xIa+GqoP/0amz+ZN7y/L7+f32CRinJ7/ 3e4xjXNDmtWG4Whe/WKjlYmbAcvSdWV/4HYpurW2BFJnOAB/5lIqYcS/PyqErPzA w4EpRoJ+ZdFgmlDH0vdsDwPLT/HFmhUN9AopNkoZpbSMxrManSj5QgmePXyiKReP Q+ZAK5UW5AdOVY4bgXUSEkVq2eilCLXf+bSBR/LrVQuNgu7GULX8SIy/Y1CuMtv8 LgzzjLKfIZaIWC+F/RU7BxJ7YnrVq7z7yXnUx8j2416+k/Wwe+BeSUCSZstT7q9G UkX8jWfR7ZKqhwP+UQeSwDbHkALz7lv88nyjQdxJZ3SrXRe4hy14YjxnR4maeNAj 3TAYSdcAMWyRHqeEZIZ7Hj5sQtTq5OZAoIjxzH3vpVdAnnAkcWoF77pqxV8XPqTC nw40DihAxQOshGwMkjd5DqkEwnMv43Hs1WTVYu9dPTOfOdqPNt+Vqp7Xl9Z46+kV k6PDcx60T9ayDW1QZ6MoIXHta9E7ixzu7gYBL3vP4LuporY0uNG3bzF3CMvof1BK sHYcYTdZkqbTD2d6rHV+TbpPQXgTtlej9qVlQM4SeX37Xtc7LxCYpnpUHKz2S/fK 1vyeGPgdytHblwlxwZOPZ4R2I/HTfnITdr4kMcJHhxAsEewfW1Rd4+stQqVJ2Mph Vz+CFP2BngivGFz5vuky =4H8J -----END PGP SIGNATURE----- Merge tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "Not a major amount of change, the i915 trees got split into display and gt trees to better facilitate higher level review, and there's a major refactoring of i915 GEM locking to use more core kernel concepts (like ww-mutexes). msm gets per-process pagetables, older AMD SI cards get DC support, nouveau got a bump in displayport support with common code extraction from i915. Outside of drm this contains a couple of patches for hexint moduleparams which you've acked, and a virtio common code tree that you should also get via it's regular path. New driver: - Cadence MHDP8546 DisplayPort bridge driver core: - cross-driver scatterlist cleanups - devm_drm conversions - remove drm_dev_init - devm_drm_dev_alloc conversion ttm: - lots of refactoring and cleanups bridges: - chained bridge support in more drivers panel: - misc new panels scheduler: - cleanup priority levels displayport: - refactor i915 code into helpers for nouveau i915: - split into display and GT trees - WW locking refactoring in GEM - execbuf2 extension mechanism - syncobj timeline support - GEN 12 HOBL display powersaving - Rocket Lake display additions - Disable FBC on Tigerlake - Tigerlake Type-C + DP improvements - Hotplug interrupt refactoring amdgpu: - Sienna Cichlid updates - Navy Flounder updates - DCE6 (SI) support for DC - Plane rotation enabled - TMZ state info ioctl - PCIe DPC recovery support - DC interrupt handling refactor - OLED panel fixes amdkfd: - add SMI events for thermal throttling - SMI interface events ioctl update - process eviction counters radeon: - move to dma_ for allocations - expose sclk via sysfs msm: - DSI support for sm8150/sm8250 - per-process GPU pagetable support - Displayport support mediatek: - move HDMI phy driver to PHY - convert mtk-dpi to bridge API - disable mt2701 tmds tegra: - bridge support exynos: - misc cleanups vc4: - dual display cleanups ast: - cleanups gma500: - conversion to GPIOd API hisilicon: - misc reworks ingenic: - clock handling and format improvements mcde: - DSI support mgag200: - desktop g200 support mxsfb: - i.MX7 + i.MX8M - alpha plane support panfrost: - devfreq support - amlogic SoC support ps8640: - EDID from eDP retrieval tidss: - AM65xx YUV workaround virtio: - virtio-gpu exported resources rcar-du: - R8A7742, R8A774E1 and R8A77961 support - YUV planar format fixes - non-visible plane handling - VSP device reference count fix - Kconfig fix to avoid displaying disabled options in .config" * tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm: (1494 commits) drm/ingenic: Fix bad revert drm/amdgpu: Fix invalid number of character '{' in amdgpu_acpi_init drm/amdgpu: Remove warning for virtual_display drm/amdgpu: kfd_initialized can be static drm/amd/pm: setup APU dpm clock table in SMU HW initialization drm/amdgpu: prevent spurious warning drm/amdgpu/swsmu: fix ARC build errors drm/amd/display: Fix OPTC_DATA_FORMAT programming drm/amd/display: Don't allow pstate if no support in blank drm/panfrost: increase readl_relaxed_poll_timeout values MAINTAINERS: Update entry for st7703 driver after the rename Revert "gpu/drm: ingenic: Add option to mmap GEM buffers cached" drm/amd/display: HDMI remote sink need mode validation for Linux drm/amd/display: Change to correct unit on audio rate drm/amd/display: Avoid set zero in the requested clk drm/amdgpu: align frag_end to covered address space drm/amdgpu: fix NULL pointer dereference for Renoir drm/vmwgfx: fix regression in thp code due to ttm init refactor. drm/amdgpu/swsmu: add interrupt work handler for smu11 parts drm/amdgpu/swsmu: add interrupt work function ... |
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Linus Torvalds
|
726eb70e0d |
Char/Misc driver patches for 5.10-rc1
Here is the big set of char, misc, and other assorted driver subsystem patches for 5.10-rc1. There's a lot of different things in here, all over the drivers/ directory. Some summaries: - soundwire driver updates - habanalabs driver updates - extcon driver updates - nitro_enclaves new driver - fsl-mc driver and core updates - mhi core and bus updates - nvmem driver updates - eeprom driver updates - binder driver updates and fixes - vbox minor bugfixes - fsi driver updates - w1 driver updates - coresight driver updates - interconnect driver updates - misc driver updates - other minor driver updates All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX4g8YQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yngKgCeNpArCP/9vQJRK9upnDm8ZLunSCUAn1wUT/2A /bTQ42c/WRQ+LU828GSM =6sO2 -----END PGP SIGNATURE----- Merge tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char, misc, and other assorted driver subsystem patches for 5.10-rc1. There's a lot of different things in here, all over the drivers/ directory. Some summaries: - soundwire driver updates - habanalabs driver updates - extcon driver updates - nitro_enclaves new driver - fsl-mc driver and core updates - mhi core and bus updates - nvmem driver updates - eeprom driver updates - binder driver updates and fixes - vbox minor bugfixes - fsi driver updates - w1 driver updates - coresight driver updates - interconnect driver updates - misc driver updates - other minor driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (396 commits) binder: fix UAF when releasing todo list docs: w1: w1_therm: Fix broken xref, mistakes, clarify text misc: Kconfig: fix a HISI_HIKEY_USB dependency LSM: Fix type of id parameter in kernel_post_load_data prototype misc: Kconfig: add a new dependency for HISI_HIKEY_USB firmware_loader: fix a kernel-doc markup w1: w1_therm: make w1_poll_completion static binder: simplify the return expression of binder_mmap test_firmware: Test partial read support firmware: Add request_partial_firmware_into_buf() firmware: Store opt_flags in fw_priv fs/kernel_file_read: Add "offset" arg for partial reads IMA: Add support for file reads without contents LSM: Add "contents" flag to kernel_read_file hook module: Call security_kernel_post_load_data() firmware_loader: Use security_post_load_data() LSM: Introduce kernel_post_load_data() hook fs/kernel_read_file: Add file_size output argument fs/kernel_read_file: Switch buffer size arg to size_t fs/kernel_read_file: Remove redundant size argument ... |
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Linus Torvalds
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fe151462bd |
Driver Core patches for 5.10-rc1
Here is the "big" set of driver core patches for 5.10-rc1 They include a lot of different things, all related to the driver core and/or some driver logic: - sysfs common write functions to make it easier to audit sysfs attributes - device connection cleanups and fixes - devm helpers for a few functions - NOIO allocations for when devices are being removed - minor cleanups and fixes All have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX4c4yA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ylS7gCfcS+7/PE42eXxMY0z8rBX8aDMadIAn2DVEghA Eoh9UoMEW4g1uMKORA0c =CVAW -----END PGP SIGNATURE----- Merge tag 'driver-core-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the "big" set of driver core patches for 5.10-rc1 They include a lot of different things, all related to the driver core and/or some driver logic: - sysfs common write functions to make it easier to audit sysfs attributes - device connection cleanups and fixes - devm helpers for a few functions - NOIO allocations for when devices are being removed - minor cleanups and fixes All have been in linux-next for a while with no reported issues" * tag 'driver-core-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (31 commits) regmap: debugfs: use semicolons rather than commas to separate statements platform/x86: intel_pmc_core: do not create a static struct device drivers core: node: Use a more typical macro definition style for ACCESS_ATTR drivers core: Use sysfs_emit for shared_cpu_map_show and shared_cpu_list_show mm: and drivers core: Convert hugetlb_report_node_meminfo to sysfs_emit drivers core: Miscellaneous changes for sysfs_emit drivers core: Reindent a couple uses around sysfs_emit drivers core: Remove strcat uses around sysfs_emit and neaten drivers core: Use sysfs_emit and sysfs_emit_at for show(device *...) functions sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output dyndbg: use keyword, arg varnames for query term pairs driver core: force NOIO allocations during unplug platform_device: switch to simpler IDA interface driver core: platform: Document return type of more functions Revert "driver core: Annotate dev_err_probe() with __must_check" Revert "test_firmware: Test platform fw loading on non-EFI systems" iio: adc: xilinx-xadc: use devm_krealloc() hwmon: pmbus: use more devres helpers devres: provide devm_krealloc() syscore: Use pm_pr_dbg() for syscore_{suspend,resume}() ... |
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Matthew Wilcox (Oracle)
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e320d3012d |
mm/page_alloc.c: fix freeing non-compound pages
Here is a very rare race which leaks memory:
Page P0 is allocated to the page cache. Page P1 is free.
Thread A Thread B Thread C
find_get_entry():
xas_load() returns P0
Removes P0 from page cache
P0 finds its buddy P1
alloc_pages(GFP_KERNEL, 1) returns P0
P0 has refcount 1
page_cache_get_speculative(P0)
P0 has refcount 2
__free_pages(P0)
P0 has refcount 1
put_page(P0)
P1 is not freed
Fix this by freeing all the pages in __free_pages() that won't be freed
by the call to put_page(). It's usually not a good idea to split a page,
but this is a very unlikely scenario.
Fixes:
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Patricia Alfonso
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73228c7ecc |
KASAN: port KASAN Tests to KUnit
Transfer all previous tests for KASAN to KUnit so they can be run more easily. Using kunit_tool, developers can run these tests with their other KUnit tests and see "pass" or "fail" with the appropriate KASAN report instead of needing to parse each KASAN report to test KASAN functionalities. All KASAN reports are still printed to dmesg. Stack tests do not work properly when KASAN_STACK is enabled so those tests use a check for "if IS_ENABLED(CONFIG_KASAN_STACK)" so they only run if stack instrumentation is enabled. If KASAN_STACK is not enabled, KUnit will print a statement to let the user know this test was not run with KASAN_STACK enabled. copy_user_test and kasan_rcu_uaf cannot be run in KUnit so there is a separate test file for those tests, which can be run as before as a module. [trishalfonso@google.com: v14] Link: https://lkml.kernel.org/r/20200915035828.570483-4-davidgow@google.com Signed-off-by: Patricia Alfonso <trishalfonso@google.com> Signed-off-by: David Gow <davidgow@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Shuah Khan <shuah@kernel.org> Cc: Vincent Guittot <vincent.guittot@linaro.org> Link: https://lkml.kernel.org/r/20200910070331.3358048-4-davidgow@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Patricia Alfonso
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83c4e7a036 |
KUnit: KASAN Integration
Integrate KASAN into KUnit testing framework. - Fail tests when KASAN reports an error that is not expected - Use KUNIT_EXPECT_KASAN_FAIL to expect a KASAN error in KASAN tests - Expected KASAN reports pass tests and are still printed when run without kunit_tool (kunit_tool still bypasses the report due to the test passing) - KUnit struct in current task used to keep track of the current test from KASAN code Make use of "[PATCH v3 kunit-next 1/2] kunit: generalize kunit_resource API beyond allocated resources" and "[PATCH v3 kunit-next 2/2] kunit: add support for named resources" from Alan Maguire [1] - A named resource is added to a test when a KASAN report is expected - This resource contains a struct for kasan_data containing booleans representing if a KASAN report is expected and if a KASAN report is found [1] (https://lore.kernel.org/linux-kselftest/1583251361-12748-1-git-send-email-alan.maguire@oracle.com/T/#t) Signed-off-by: Patricia Alfonso <trishalfonso@google.com> Signed-off-by: David Gow <davidgow@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Brendan Higgins <brendanhiggins@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Shuah Khan <shuah@kernel.org> Cc: Vincent Guittot <vincent.guittot@linaro.org> Link: https://lkml.kernel.org/r/20200915035828.570483-3-davidgow@google.com Link: https://lkml.kernel.org/r/20200910070331.3358048-3-davidgow@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ralph Campbell
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9b53122f61 |
lib/test_hmm.c: remove unused dmirror_zero_page
The variable dmirror_zero_page is unused in the HMM self test driver which was probably intended to demonstrate how a driver could use migrate_vma_setup() to share a single read-only device private zero page similar to how the CPU does. However, this isn't needed for the self tests so remove it. Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jerome Glisse <jglisse@redhat.com> Link: https://lkml.kernel.org/r/20200914213801.16520-1-rcampbell@nvidia.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Dan Williams
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b7b3c01b19 |
mm/memremap_pages: support multiple ranges per invocation
In support of device-dax growing the ability to front physically dis-contiguous ranges of memory, update devm_memremap_pages() to track multiple ranges with a single reference counter and devm instance. Convert all [devm_]memremap_pages() users to specify the number of ranges they are mapping in their 'struct dev_pagemap' instance. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Juergen Gross <jgross@suse.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: "Jérôme Glisse" <jglisse@redhat.co Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brice Goglin <Brice.Goglin@inria.fr> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Hulk Robot <hulkci@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Jason Yan <yanaijie@huawei.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Jia He <justin.he@arm.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: kernel test robot <lkp@intel.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/159643103789.4062302.18426128170217903785.stgit@dwillia2-desk3.amr.corp.intel.com Link: https://lkml.kernel.org/r/160106116293.30709.13350662794915396198.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Dan Williams
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a4574f63ed |
mm/memremap_pages: convert to 'struct range'
The 'struct resource' in 'struct dev_pagemap' is only used for holding resource span information. The other fields, 'name', 'flags', 'desc', 'parent', 'sibling', and 'child' are all unused wasted space. This is in preparation for introducing a multi-range extension of devm_memremap_pages(). The bulk of this change is unwinding all the places internal to libnvdimm that used 'struct resource' unnecessarily, and replacing instances of 'struct dev_pagemap'.res with 'struct dev_pagemap'.range. P2PDMA had a minor usage of the resource flags field, but only to report failures with "%pR". That is replaced with an open coded print of the range. [dan.carpenter@oracle.com: mm/hmm/test: use after free in dmirror_allocate_chunk()] Link: https://lkml.kernel.org/r/20200926121402.GA7467@kadam Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen] Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Juergen Gross <jgross@suse.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brice Goglin <Brice.Goglin@inria.fr> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Hulk Robot <hulkci@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Jason Yan <yanaijie@huawei.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Jia He <justin.he@arm.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: kernel test robot <lkp@intel.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Wei Yang <richard.weiyang@linux.alibaba.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/159643103173.4062302.768998885691711532.stgit@dwillia2-desk3.amr.corp.intel.com Link: https://lkml.kernel.org/r/160106115761.30709.13539840236873663620.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |