Commit Graph

38413 Commits

Author SHA1 Message Date
Linus Torvalds
d2da77f431 parisc architecture fixes for kernel v6.7-rc3:
- Drop HP-UX ENOSYM and EREMOTERELEASE return codes to avoid glibc
   build issues
 - Fix section alignments for ex_table, altinstructions, parisc unwind
   table, jump_table and bug_table
 - Reduce size of bug_table on 64-bit kernel by using relative
   pointers
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQS86RI+GtKfB8BJu973ErUQojoPXwUCZWNy+gAKCRD3ErUQojoP
 XwmuAQDw3a424GmG9c4lxQgPCdtFMUeOCOpMpPNNWdT8UhAcngD9FL5++lt1mwhK
 mq+w+ftx9sATtUIbvX5exkD1dChRaQw=
 =+Q66
 -----END PGP SIGNATURE-----

Merge tag 'parisc-for-6.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc architecture fixes from Helge Deller:
 "This patchset fixes and enforces correct section alignments for the
  ex_table, altinstructions, parisc_unwind, jump_table and bug_table
  which are created by inline assembly.

  Due to not being correctly aligned at link & load time they can
  trigger unnecessarily the kernel unaligned exception handler at
  runtime. While at it, I switched the bug table to use relative
  addresses which reduces the size of the table by half on 64-bit.

  We still had the ENOSYM and EREMOTERELEASE errno symbols as left-overs
  from HP-UX, which now trigger build-issues with glibc. We can simply
  remove them.

  Most of the patches are tagged for stable kernel series.

  Summary:

   - Drop HP-UX ENOSYM and EREMOTERELEASE return codes to avoid glibc
     build issues

   - Fix section alignments for ex_table, altinstructions, parisc unwind
     table, jump_table and bug_table

   - Reduce size of bug_table on 64-bit kernel by using relative
     pointers"

* tag 'parisc-for-6.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Reduce size of the bug_table on 64-bit kernel by half
  parisc: Drop the HP-UX ENOSYM and EREMOTERELEASE error codes
  parisc: Use natural CPU alignment for bug_table
  parisc: Ensure 32-bit alignment on parisc unwind section
  parisc: Mark lock_aligned variables 16-byte aligned on SMP
  parisc: Mark jump_table naturally aligned
  parisc: Mark altinstructions read-only and 32-bit aligned
  parisc: Mark ex_table entries 32-bit aligned in uaccess.h
  parisc: Mark ex_table entries 32-bit aligned in assembly.h
2023-11-26 09:59:39 -08:00
Linus Torvalds
2821c393d4 arm64 fixes:
- Fix "rodata=on" not disabling "rodata=full" on arm64
 
 - Add arm64 make dependency between vmlinuz.efi and Image, leading to
   occasional build failures previously (with parallel building)
 
 - Add newline to the output formatting of the za-fork kselftest
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE5RElWfyWxS+3PLO2a9axLQDIXvEFAmVh0DsACgkQa9axLQDI
 XvE8ew//emh6S4JYnUrAQ2n3cOombbcp+pmXrM0rBlv2u2CPRoiov4Oa8sgGawDh
 MP1GWil2rpMX9SBqYaUPEfnldOOsr7hGypneSk++gtj+IT40CEyNDHtwH3qemUt7
 qjMvBF5UGRYjyF/aJVmPyLeLUD8xKF1JlQy4Pf6FIeBq4QEYbqGjaPHvEg/sUNTi
 TKqbSKs68Nl+duOOBzPIR3tgzQJoyrY+I9VC7RjYcBFuLjvHhGejcWWfQacrpKEA
 9wSVxGnN+s+JtkSvhxpFfZH/ATl++xQg5X/O9LPFLn29tH3H4mwI71fc0A6Z0MVv
 3X6kRTuJnKu8CbhmS0soAVATVuvqCpFHO+j8wiPtT4JsoJgUs9P1p1/tyhSm7B1g
 PEpyS7FOx+VNWz8EOxYQ271AK6MnBaURT/o0lr88mFtoisFozIfJxT3ornmj5uWe
 of+syeoEBW42aTUTVpv64VtVH6sF8vxBfSG/fWnTrDvRLnZ0Z3VxroPVgdLf6Rei
 Hd3kb9cLDsrx3Tb4qzInYt9ja3EvNv9ljHQRSTXp0qb5VdBsxy+cWz9Pt3JPQRub
 FTcirL+iYgED5M9G3eX4cRie+Iv4OS5bCvqYdk5c+whsY8rVwkRhhEjzUHmvSWwf
 1YSv9av0/SOSsq2f3lOogd+1k5BA9ChWxKX3ojxJmyk7LUWuokY=
 =shHM
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Fix "rodata=on" not disabling "rodata=full" on arm64

 - Add arm64 make dependency between vmlinuz.efi and Image, leading to
   occasional build failures previously (with parallel building)

 - Add newline to the output formatting of the za-fork kselftest

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: add dependency between vmlinuz.efi and Image
  kselftest/arm64: Fix output formatting for za-fork
  arm64: mm: Fix "rodata=on" when CONFIG_RODATA_FULL_DEFAULT_ENABLED=y
2023-11-25 08:43:46 -08:00
Helge Deller
e5f3e299a2 parisc: Drop the HP-UX ENOSYM and EREMOTERELEASE error codes
Those return codes are only defined for the parisc architecture and
are leftovers from when we wanted to be HP-UX compatible.

They are not returned by any Linux kernel syscall but do trigger
problems with the glibc strerrorname_np() and strerror() functions as
reported in glibc issue #31080.

There is no need to keep them, so simply remove them.

Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: Bruno Haible <bruno@clisp.org>
Closes: https://sourceware.org/bugzilla/show_bug.cgi?id=31080
Cc: stable@vger.kernel.org
2023-11-25 09:43:18 +01:00
Linus Torvalds
b345fd55a2 Power management fix for 6.7-rc3
Fix a syntax error in the sleepgraph utility which causes it to
 exit early on every invocation (David Woodhouse).
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmVg5qkSHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRxwFEP/23ZeIO9tjUMrlzzb6DToHFMtZY2bZbj
 yNAkeDiwV2ukx82UuJhWlYCQPEqJ9q9lRcgIOoFdIjWIMPpXSv/fjeCuQfT0IpDd
 QrK9DZ0WhzLzglCAcqSpmYj/LDZzmjBzf88u2kzZigtuHzRvyMoJmz0zt1ZRpf1D
 u2jARKU7sdobdOqmcKL9thGml8RMoTcHiyjC0/EddjArBg8eCZq69C4y0uOz5jiN
 CeGT4HrLI+kf71dpeeEOj2W/p8yxPDPpVuE4sSkKHfhHQoJ0j1uCePbEY0mNxato
 zuKoTKOZQ+9MDjgUj8Bjv4iEzLxTgL1tjg+GMzo/aN5sRie0R31k+2DO5EpEFceI
 7KB0pUe36Va3ZY29Xqo3hq0rkLsBxh+xBX0ahENr0iC8fWZWqBXzMV/KDx8/JW0D
 RNVUmNfz9ZPoal/37fhhBQiB2ZS95vQXdsqhU4pv98sekpV/hG5aNhea/zC60mWP
 IFYUZ+hauPVjwywvfSAOOn/JMGze8+E1B1hHthvMNh2UMRW3qJX9SZepcJzRwMFR
 ashn8CY5dQ6Ht7TUYijuZXa4AN7YHsoi0nR0HmdYIBGzHrrxK1js69WNScmgz/k8
 HdDLL7xceiJwv2XINTIa+qMRhaz8Aw8bwNxnR2rfrxYc+vurMayIdO5Ug85MFCki
 A9zgAbDIJ2Oi
 =ZRip
 -----END PGP SIGNATURE-----

Merge tag 'pm-6.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a syntax error in the sleepgraph utility which causes it to exit
  early on every invocation (David Woodhouse)"

* tag 'pm-6.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: tools: Fix sleepgraph syntax error
2023-11-24 11:26:00 -08:00
Linus Torvalds
d3fa86b1a7 Including fixes from bpf.
Current release - regressions:
 
  - Revert "net: r8169: Disable multicast filter for RTL8168H
    and RTL8107E"
 
  - kselftest: rtnetlink: fix ip route command typo
 
 Current release - new code bugs:
 
  - s390/ism: make sure ism driver implies smc protocol in kconfig
 
  - two build fixes for tools/net
 
 Previous releases - regressions:
 
  - rxrpc: couple of ACK/PING/RTT handling fixes
 
 Previous releases - always broken:
 
  - bpf: verify bpf_loop() callbacks as if they are called unknown
    number of times
 
  - improve stability of auto-bonding with Hyper-V
 
  - account BPF-neigh-redirected traffic in interface statistics
 
 Misc:
 
  - net: fill in some more MODULE_DESCRIPTION()s
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmVfiBoACgkQMUZtbf5S
 IrukFhAAiY5XyqiVyEBsm10AgYSpl0BbnxywfK27nR2SbxSTvSxyuXseV2EyEynU
 iNn6CksHe2rG1/DXbKoQohsIYey/YjY5c6omT5JzuxIT2h69J4iYKMIj/Ptk5joZ
 MQsDK5J9aCvxXBazYF2CuOCgVcwmqNFbCHf1FAFhk0RuqI3RoC5/OGbLM0tmTMQw
 BceNUHBn8iPcSkRbnntwLLHVxMrX9bay6F+pcy5/b40VWBATM3uBkw/2zBqPZ+n1
 Z0SNWvLtnO6T66Y07vaE1sRiqN4KHtS4WWelVYcmYX2rY1HkXx/TUjvrJ7R/uQQQ
 /5yUB6G294NmFv/2X+Yjt5AB8PjnFzjm/BqCBrjXcnnMPOiB0YZg554s59RhRrSr
 cmZ4bveUgCQV/jJWMxwGYvZSAqtle8uN+8DhxdjbCpVJocbrseDHKyWJ6bOy85BN
 zbJuUOUeFDs53nhV+Z9fiuUFuxhIwDCKHHFmEp7R5VotX0ZURiDnqlj9WEIxKZrC
 UidWRXv/VP+bV4BB2GVIFncEWMuhrnWOQY8DR6eC33uq7JkwTZD3R8IGR8up/+tm
 CtVyPvefAYZB8/IVU/mOSVrx04ERupNVvBkXzOMQe7UqRq3okPsQFPW8HmSrmnQG
 KrJWyBIqG3jnJCuqoXwlt0rKP3MmgCjowhTbZ3uDjeVf9UJTu2U=
 =2sG4
 -----END PGP SIGNATURE-----

Merge tag 'net-6.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf.

  Current release - regressions:

   - Revert "net: r8169: Disable multicast filter for RTL8168H and
     RTL8107E"

   - kselftest: rtnetlink: fix ip route command typo

  Current release - new code bugs:

   - s390/ism: make sure ism driver implies smc protocol in kconfig

   - two build fixes for tools/net

  Previous releases - regressions:

   - rxrpc: couple of ACK/PING/RTT handling fixes

  Previous releases - always broken:

   - bpf: verify bpf_loop() callbacks as if they are called unknown
     number of times

   - improve stability of auto-bonding with Hyper-V

   - account BPF-neigh-redirected traffic in interface statistics

  Misc:

   - net: fill in some more MODULE_DESCRIPTION()s"

* tag 'net-6.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (58 commits)
  tools: ynl: fix duplicate op name in devlink
  tools: ynl: fix header path for nfsd
  net: ipa: fix one GSI register field width
  tls: fix NULL deref on tls_sw_splice_eof() with empty record
  net: axienet: Fix check for partial TX checksum
  vsock/test: fix SEQPACKET message bounds test
  i40e: Fix adding unsupported cloud filters
  ice: restore timestamp configuration after device reset
  ice: unify logic for programming PFINT_TSYN_MSK
  ice: remove ptp_tx ring parameter flag
  amd-xgbe: propagate the correct speed and duplex status
  amd-xgbe: handle the corner-case during tx completion
  amd-xgbe: handle corner-case during sfp hotplug
  net: veth: fix ethtool stats reporting
  octeontx2-pf: Fix ntuple rule creation to direct packet to VF with higher Rx queue than its PF
  net: usb: qmi_wwan: claim interface 4 for ZTE MF290
  Revert "net: r8169: Disable multicast filter for RTL8168H and RTL8107E"
  net/smc: avoid data corruption caused by decline
  nfc: virtual_ncidev: Add variable to check if ndev is running
  dpll: Fix potential msg memleak when genlmsg_put_reply failed
  ...
2023-11-23 10:40:13 -08:00
Jakub Kicinski
39f04b1406 tools: ynl: fix duplicate op name in devlink
We don't support CRUD-inspired message types in YNL too well.
One aspect that currently trips us up is the fact that single
message ID can be used in multiple commands (as the response).
This leads to duplicate entries in the id-to-string tables:

devlink-user.c:19:34: warning: initialized field overwritten [-Woverride-init]
   19 |         [DEVLINK_CMD_PORT_NEW] = "port-new",
      |                                  ^~~~~~~~~~
devlink-user.c:19:34: note: (near initialization for ‘devlink_op_strmap[7]’)

Fixes tag points at where the code was generated, the "real" problem
is that the code generator does not support CRUD.

Fixes: f2f9dd164d ("netlink: specs: devlink: add the remaining command to generate complete split_ops")
Link: https://lore.kernel.org/r/20231123030558.1611831-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-23 08:52:23 -08:00
Jakub Kicinski
2be35a6194 tools: ynl: fix header path for nfsd
The makefile dependency is trying to include the wrong header:

<command-line>: fatal error: ../../../../include/uapi//linux/nfsd.h: No such file or directory

The guard also looks wrong.

Fixes: f14122b2c2 ("tools: ynl: Add source files for nfsd netlink protocol")
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/20231123030624.1611925-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-23 08:52:12 -08:00
Arseniy Krasnov
f0863888f6 vsock/test: fix SEQPACKET message bounds test
Tune message length calculation to make this test work on machines
where 'getpagesize()' returns >32KB. Now maximum message length is not
hardcoded (on machines above it was smaller than 'getpagesize()' return
value, thus we get negative value and test fails), but calculated at
runtime and always bigger than 'getpagesize()' result. Reproduced on
aarch64 with 64KB page size.

Fixes: 5c338112e4 ("test/vsock: rework message bounds test")
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reported-by: Bogdan Marcynkov <bmarcynk@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20231121211642.163474-1-avkrasnov@salutedevices.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-23 08:49:16 -08:00
Mark Brown
460e462d22 kselftest/arm64: Fix output formatting for za-fork
The za-fork test does not output a newline when reporting the result of
the one test it runs, causing the counts printed by kselftest to be
included in the test name.  Add the newline.

Fixes: 266679ffd8 ("kselftest/arm64: Convert za-fork to use kselftest.h")
Cc: <stable@vger.kernel.org> # 6.4.x
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20231116-arm64-fix-za-fork-output-v1-1-42c03d4f5759@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2023-11-23 14:16:15 +00:00
Linus Torvalds
05c8c94ed4 hyperv-fixes for 6.7-rc3
-----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCgAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAmVdgqYTHHdlaS5saXVA
 a2VybmVsLm9yZwAKCRB2FHBfkEGgXhBsCACzUGLF3vOQdrmgTMymzaaOzfLJtvNW
 oQ34FwMJMOAyJ6FxM12IJPHA2j+azl9CPjQc5O6F2CBcF8hVj2mDIINQIi+4wpV5
 FQv445g2KFml/+AJr/1waz1GmhHtr1rfu7B7NX6tPUtOpxKN7AHAQXWYmHnwK8BJ
 5Mh2a/7Lphjin4M1FWCeBTj0JtqF1oVAW2L9jsjqogq1JV0a51DIFutROtaPSC/4
 ssTLM5Rqpnw8Z1GWVYD2PObIW4A+h1LV1tNGOIoGW6mX56mPU+KmVA7tTKr8Je/i
 z3Jk8bZXFyLvPW2+KNJacbldKNcfwAFpReffNz/FO3R16Stq9Ta1mcE2
 =wXju
 -----END PGP SIGNATURE-----

Merge tag 'hyperv-fixes-signed-20231121' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv fixes from Wei Liu:

 - One fix for the KVP daemon (Ani Sinha)

 - Fix for the detection of E820_TYPE_PRAM in a Gen2 VM (Saurabh Sengar)

 - Micro-optimization for hv_nmi_unknown() (Uros Bizjak)

* tag 'hyperv-fixes-signed-20231121' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  x86/hyperv: Use atomic_try_cmpxchg() to micro-optimize hv_nmi_unknown()
  x86/hyperv: Fix the detection of E820_TYPE_PRAM in a Gen2 VM
  hv/hv_kvp_daemon: Some small fixes for handling NM keyfiles
2023-11-22 09:56:26 -08:00
Eduard Zingerman
57e2a52dee selftests/bpf: check if max number of bpf_loop iterations is tracked
Check that even if bpf_loop() callback simulation does not converge to
a specific state, verification could proceed via "brute force"
simulation of maximal number of callback calls.

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20231121020701.26440-12-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-20 18:36:40 -08:00
Eduard Zingerman
bb124da69c bpf: keep track of max number of bpf_loop callback iterations
In some cases verifier can't infer convergence of the bpf_loop()
iteration. E.g. for the following program:

    static int cb(__u32 idx, struct num_context* ctx)
    {
        ctx->i++;
        return 0;
    }

    SEC("?raw_tp")
    int prog(void *_)
    {
        struct num_context ctx = { .i = 0 };
        __u8 choice_arr[2] = { 0, 1 };

        bpf_loop(2, cb, &ctx, 0);
        return choice_arr[ctx.i];
    }

Each 'cb' simulation would eventually return to 'prog' and reach
'return choice_arr[ctx.i]' statement. At which point ctx.i would be
marked precise, thus forcing verifier to track multitude of separate
states with {.i=0}, {.i=1}, ... at bpf_loop() callback entry.

This commit allows "brute force" handling for such cases by limiting
number of callback body simulations using 'umax' value of the first
bpf_loop() parameter.

For this, extend bpf_func_state with 'callback_depth' field.
Increment this field when callback visiting state is pushed to states
traversal stack. For frame #N it's 'callback_depth' field counts how
many times callback with frame depth N+1 had been executed.
Use bpf_func_state specifically to allow independent tracking of
callback depths when multiple nested bpf_loop() calls are present.

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20231121020701.26440-11-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-20 18:36:40 -08:00
Eduard Zingerman
9f3330aa64 selftests/bpf: test widening for iterating callbacks
A test case to verify that imprecise scalars widening is applied to
callback entering state, when callback call is simulated repeatedly.

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20231121020701.26440-10-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-20 18:36:40 -08:00
Eduard Zingerman
958465e217 selftests/bpf: tests for iterating callbacks
A set of test cases to check behavior of callback handling logic,
check if verifier catches the following situations:
- program not safe on second callback iteration;
- program not safe on zero callback iterations;
- infinite loop inside a callback.

Verify that callback logic works for bpf_loop, bpf_for_each_map_elem,
bpf_user_ringbuf_drain, bpf_find_vma.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20231121020701.26440-8-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-20 18:36:40 -08:00
Eduard Zingerman
ab5cfac139 bpf: verify callbacks as if they are called unknown number of times
Prior to this patch callbacks were handled as regular function calls,
execution of callback body was modeled exactly once.
This patch updates callbacks handling logic as follows:
- introduces a function push_callback_call() that schedules callback
  body verification in env->head stack;
- updates prepare_func_exit() to reschedule callback body verification
  upon BPF_EXIT;
- as calls to bpf_*_iter_next(), calls to callback invoking functions
  are marked as checkpoints;
- is_state_visited() is updated to stop callback based iteration when
  some identical parent state is found.

Paths with callback function invoked zero times are now verified first,
which leads to necessity to modify some selftests:
- the following negative tests required adding release/unlock/drop
  calls to avoid previously masked unrelated error reports:
  - cb_refs.c:underflow_prog
  - exceptions_fail.c:reject_rbtree_add_throw
  - exceptions_fail.c:reject_with_cp_reference
- the following precision tracking selftests needed change in expected
  log trace:
  - verifier_subprog_precision.c:callback_result_precise
    (note: r0 precision is no longer propagated inside callback and
           I think this is a correct behavior)
  - verifier_subprog_precision.c:parent_callee_saved_reg_precise_with_callback
  - verifier_subprog_precision.c:parent_stack_slot_precise_with_callback

Reported-by: Andrew Werner <awerner32@gmail.com>
Closes: https://lore.kernel.org/bpf/CA+vRuzPChFNXmouzGG+wsy=6eMcfr1mFG0F3g7rbg-sedGKW3w@mail.gmail.com/
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20231121020701.26440-7-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-20 18:35:44 -08:00
Eduard Zingerman
f40bfd1679 selftests/bpf: fix bpf_loop_bench for new callback verification scheme
This is a preparatory change. A follow-up patch "bpf: verify callbacks
as if they are called unknown number of times" changes logic for
callbacks handling. While previously callbacks were verified as a
single function call, new scheme takes into account that callbacks
could be executed unknown number of times.

This has dire implications for bpf_loop_bench:

    SEC("fentry/" SYS_PREFIX "sys_getpgid")
    int benchmark(void *ctx)
    {
            for (int i = 0; i < 1000; i++) {
                    bpf_loop(nr_loops, empty_callback, NULL, 0);
                    __sync_add_and_fetch(&hits, nr_loops);
            }
            return 0;
    }

W/o callbacks change verifier sees it as a 1000 calls to
empty_callback(). However, with callbacks change things become
exponential:
- i=0: state exploring empty_callback is scheduled with i=0 (a);
- i=1: state exploring empty_callback is scheduled with i=1;
  ...
- i=999: state exploring empty_callback is scheduled with i=999;
- state (a) is popped from stack;
- i=1: state exploring empty_callback is scheduled with i=1;
  ...

Avoid this issue by rewriting outer loop as bpf_loop().
Unfortunately, this adds a function call to a loop at runtime, which
negatively affects performance:

            throughput               latency
   before:  149.919 ± 0.168 M ops/s, 6.670 ns/op
   after :  137.040 ± 0.187 M ops/s, 7.297 ns/op

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20231121020701.26440-4-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-20 18:33:35 -08:00
Eduard Zingerman
87eb0152bc selftests/bpf: track string payload offset as scalar in strobemeta
This change prepares strobemeta for update in callbacks verification
logic. To allow bpf_loop() verification converge when multiple
callback iterations are considered:
- track offset inside strobemeta_payload->payload directly as scalar
  value;
- at each iteration make sure that remaining
  strobemeta_payload->payload capacity is sufficient for execution of
  read_{map,str}_var functions;
- make sure that offset is tracked as unbound scalar between
  iterations, otherwise verifier won't be able infer that bpf_loop
  callback reaches identical states.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20231121020701.26440-3-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-20 18:33:35 -08:00
Eduard Zingerman
977bc146d4 selftests/bpf: track tcp payload offset as scalar in xdp_synproxy
This change prepares syncookie_{tc,xdp} for update in callbakcs
verification logic. To allow bpf_loop() verification converge when
multiple callback itreations are considered:
- track offset inside TCP payload explicitly, not as a part of the
  pointer;
- make sure that offset does not exceed MAX_PACKET_OFF enforced by
  verifier;
- make sure that offset is tracked as unbound scalar between
  iterations, otherwise verifier won't be able infer that bpf_loop
  callback reaches identical states.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20231121020701.26440-2-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-20 18:33:35 -08:00
Daniel Borkmann
adfeae2d24 selftests/bpf: Add netkit to tc_redirect selftest
Extend the existing tc_redirect selftest to also cover netkit devices
for exercising the bpf_redirect_peer() code paths, so that we have both
veth as well as netkit covered, all tests still pass after this change.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20231114004220.6495-9-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-11-20 10:15:16 -08:00
Daniel Borkmann
eee82da79f selftests/bpf: De-veth-ize the tc_redirect test case
No functional changes to the test case, but just renaming various functions,
variables, etc, to remove veth part of their name for making it more generic
and reusable later on (e.g. for netkit).

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20231114004220.6495-8-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-11-20 10:15:16 -08:00
David Woodhouse
b85e2dab33 PM: tools: Fix sleepgraph syntax error
The sleepgraph tool currently fails:

  File "/usr/bin/sleepgraph", line 4155
    or re.match('psci: CPU(?P<cpu>[0-9]*) killed.*', msg)):
                                                         ^
SyntaxError: unmatched ')'

Fixes: 34ea427e01 ("PM: tools: sleepgraph: Recognize "CPU killed" messages")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-11-20 17:59:58 +01:00
Linus Torvalds
9ea991a50d turbostat-2023.11.07
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEE67dNfPFP+XUaA73mB9BFOha3NhcFAmVO9MoUHGxlbi5icm93
 bkBpbnRlbC5jb20ACgkQB9BFOha3NhcJqhAAryDKEnmhbz0Xu746fL6cuTqrsJXr
 7QyswqsJnzqWHWvFsxzBXvXe9iCH73dlfT2TGtPbKuevskvJVAhNGrULIX+k9ddP
 rVRgKvCyJuajMzTbKEjJDUm1a142WFSUNPBxvH6LSdmqmMhPt76cK19Z38kIreMt
 CM+c0NJwzEGED7SvsCR4SV2dSzrbru40ni6knsYjbaaeUr5pRE3W4qxbSwVdKBW4
 lnnmU6R0xZkZ0IYA90xiXso4YZ81dBY4vV4pUpVewqgT1uQOLA4pfabIW8fYDPnW
 gkUtAVFWaky2L7zwvLsMkg5f3gkTKUCCKkDEbBuWj84YwqAOHC2pV23aJ2iBkP2C
 SyBnHiI9u0oYg+uDtM8SPxoTDiDhSNUq/mfVa/VZwwItSb1IOiTlhCrRzU4z4+IO
 R/+eyJYsK//EiIs9EjVANafzGbnvrBvfZAkXVrHExfSyiN/6wDrpo2E4lFeELxwW
 CUf4X1dtv/RdFFjju5cu/Q/DntENqxife9QHRTsn1lJsPZ+Pp/D9qZ4shA+o1P6a
 bnXDph4DjCC7i2QYo55NcO6LbfpVJ03IPg3CZjScaW1PCN4ELkE9AJju7HkHEZCB
 icOvpKF4vOjeGJRQI0BDXr1w0re1ZSg2ylDCappq0ud/zSOkYIK6q1V2Uh4CWGv+
 XX43X38SiMdyfuc=
 =J72l
 -----END PGP SIGNATURE-----

Merge tag 'turbostat-2023.11.07' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull turbostat updates from Len Brown:

 - Turbostat features are now table-driven (Rui Zhang)

 - Add support for some new platforms (Sumeet Pawnikar, Rui Zhang)

 - Gracefully run in configs when CPUs are limited (Rui Zhang, Srinivas
   Pandruvada)

 - misc minor fixes

[ This came in during the merge window, but sorting out the signed tag
  took a while, so thus the late merge   - Linus ]

* tag 'turbostat-2023.11.07' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (86 commits)
  tools/power turbostat: version 2023.11.07
  tools/power/turbostat: bugfix "--show IPC"
  tools/power/turbostat: Add initial support for LunarLake
  tools/power/turbostat: Add initial support for ArrowLake
  tools/power/turbostat: Add initial support for GrandRidge
  tools/power/turbostat: Add initial support for SierraForest
  tools/power/turbostat: Add initial support for GraniteRapids
  tools/power/turbostat: Add MSR_CORE_C1_RES support for spr_features
  tools/power/turbostat: Move process to root cgroup
  tools/power/turbostat: Handle cgroup v2 cpu limitation
  tools/power/turbostat: Abstrct function for parsing cpu string
  tools/power/turbostat: Handle offlined CPUs in cpu_subset
  tools/power/turbostat: Obey allowed CPUs for system summary
  tools/power/turbostat: Obey allowed CPUs for primary thread/core detection
  tools/power/turbostat: Abstract several functions
  tools/power/turbostat: Obey allowed CPUs during startup
  tools/power/turbostat: Obey allowed CPUs when accessing CPU counters
  tools/power/turbostat: Introduce cpu_allowed_set
  tools/power/turbostat: Remove PC7/PC9 support on ADL/RPL
  tools/power/turbostat: Enable MSR_CORE_C1_RES on recent Intel client platforms
  ...
2023-11-18 09:09:17 -08:00
Linus Torvalds
12ee72fe01 Thirteen hotfixes. Seven are cc:stable and the remainder pertain to
post-6.6 issues or aren't considered suitable for backporting.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZVfj5gAKCRDdBJ7gKXxA
 juu8AP9JwxIvlL5h8r1BD1w3mSNIOt1lFVPnrdElGLh4KwxIKwEAnosxmewHtSzY
 DsF7MsSgw6xG383LQR4Yp4I0a6g0dQ8=
 =faay
 -----END PGP SIGNATURE-----

Merge tag 'mm-hotfixes-stable-2023-11-17-14-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "Thirteen hotfixes. Seven are cc:stable and the remainder pertain to
  post-6.6 issues or aren't considered suitable for backporting"

* tag 'mm-hotfixes-stable-2023-11-17-14-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: more ptep_get() conversion
  parisc: fix mmap_base calculation when stack grows upwards
  mm/damon/core.c: avoid unintentional filtering out of schemes
  mm: kmem: drop __GFP_NOFAIL when allocating objcg vectors
  mm/damon/sysfs-schemes: handle tried region directory allocation failure
  mm/damon/sysfs-schemes: handle tried regions sysfs directory allocation failure
  mm/damon/sysfs: check error from damon_sysfs_update_target()
  mm: fix for negative counter: nr_file_hugepages
  selftests/mm: add hugetlb_fault_after_madv to .gitignore
  selftests/mm: restore number of hugepages
  selftests: mm: fix some build warnings
  selftests: mm: skip whole test instead of failure
  mm/damon/sysfs: eliminate potential uninitialized variable warning
2023-11-17 14:19:46 -08:00
Paolo Abeni
75a50c4f5b kselftest: rtnetlink: fix ip route command typo
The blamed commit below introduced a typo causing 'gretap' test-case
failures:

./rtnetlink.sh  -t kci_test_gretap -v
COMMAND: ip link add name test-dummy0 type dummy
COMMAND: ip link set test-dummy0 up
COMMAND: ip netns add testns
COMMAND: ip link help gretap 2>&1 | grep -q '^Usage:'
COMMAND: ip -netns testns link add dev gretap00 type gretap seq key 102 local 172.16.1.100 remote 172.16.1.200
COMMAND: ip -netns testns addr add dev gretap00 10.1.1.100/24
COMMAND: ip -netns testns link set dev gretap00 ups
    Error: either "dev" is duplicate, or "ups" is a garbage.
COMMAND: ip -netns testns link del gretap00
COMMAND: ip -netns testns link add dev gretap00 type gretap external
COMMAND: ip -netns testns link del gretap00
FAIL: gretap

Fix it by using the correct keyword.

Fixes: 9c2a19f715 ("kselftest: rtnetlink.sh: add verbose flag")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-17 02:47:19 +00:00
Linus Torvalds
7475e51b87 Including fixes from BPF and netfilter.
Current release - regressions:
 
  - core: fix undefined behavior in netdev name allocation
 
  - bpf: do not allocate percpu memory at init stage
 
  - netfilter: nf_tables: split async and sync catchall in two functions
 
  - mptcp: fix possible NULL pointer dereference on close
 
 Current release - new code bugs:
 
  - eth: ice: dpll: fix initial lock status of dpll
 
 Previous releases - regressions:
 
  - bpf: fix precision backtracking instruction iteration
 
  - af_unix: fix use-after-free in unix_stream_read_actor()
 
  - tipc: fix kernel-infoleak due to uninitialized TLV value
 
  - eth: bonding: stop the device in bond_setup_by_slave()
 
  - eth: mlx5:
    - fix double free of encap_header
    - avoid referencing skb after free-ing in drop path
 
  - eth: hns3: fix VF reset
 
  - eth: mvneta: fix calls to page_pool_get_stats
 
 Previous releases - always broken:
 
  - core: set SOCK_RCU_FREE before inserting socket into hashtable
 
  - bpf: fix control-flow graph checking in privileged mode
 
  - eth: ppp: limit MRU to 64K
 
  - eth: stmmac: avoid rx queue overrun
 
  - eth: icssg-prueth: fix error cleanup on failing initialization
 
  - eth: hns3: fix out-of-bounds access may occur when coalesce info is
  	      read via debugfs
 
  - eth: cortina: handle large frames
 
 Misc:
 
  - selftests: gso: support CONFIG_MAX_SKB_FRAGS up to 45
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEEg1AjqC77wbdLX2LbKSR5jcyPE6QFAmVV9akSHHBhYmVuaUBy
 ZWRoYXQuY29tAAoJECkkeY3MjxOkICMP/1+QHUaD4JG1mW9oYc2zINPfQl3dqQt3
 2CGSE2yrtbQvyQl39BDa0WFzV5X6So6/U50twhTNM+UAJsCaOvxCUDvUP9eY9Dcm
 z2H4oITZimyP4CEb3l7JpL2PImvfImL7D/fCPPMUZVzNY6dkEFznaQrnawbJz4gg
 mZXDnjwIXq7OchoJy3dHzyOn4ZQj2Df5VcfBzkVMdMcwV55Sd5JezbhwJ6NOmnKA
 uoXlq4pFYj3ahAhEQfLWUwXmF3e6esHs/WUCMe5FR9YkanJlu4oHUmY3RLzfcdQA
 PPIPDRxOzthcXyymqvqs7gnZ3ruMUll4B7tGTVFpJch8ts+DwGdUyBIIoDd/1BUT
 gmjipP5HPia3Qdtk3Jc4vMkcf5AwoGo0hXku7YYJ1K7+4+t8ep3/hDbQc0PLWX6J
 afiQgqpnNXHSTqBO5zl91vSwhGr/AAtAkDlPnsQL/RDAxY4teIwxHuoMvwPWaHZJ
 sMo5ZcHXvNnBbGhpozFtmrnbf1nduUrQmW5LkJViCLf25Sj6pDYbo8WnhMuOKSnZ
 7an2YqniCgBtrX4MEVn2jsWgavI+SxndVIQR04u0uwqmP+dn8s9LUfjKKDtPWHsK
 +zMFtk+Op03TW5ur9w3+dgrGH0cLogPO3BJkho7xXKBfZ6/tN/pOef3/nV9xY6g8
 JjnBUdpZRTWI
 =VjWw
 -----END PGP SIGNATURE-----

Merge tag 'net-6.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from BPF and netfilter.

  Current release - regressions:

   - core: fix undefined behavior in netdev name allocation

   - bpf: do not allocate percpu memory at init stage

   - netfilter: nf_tables: split async and sync catchall in two
     functions

   - mptcp: fix possible NULL pointer dereference on close

  Current release - new code bugs:

   - eth: ice: dpll: fix initial lock status of dpll

  Previous releases - regressions:

   - bpf: fix precision backtracking instruction iteration

   - af_unix: fix use-after-free in unix_stream_read_actor()

   - tipc: fix kernel-infoleak due to uninitialized TLV value

   - eth: bonding: stop the device in bond_setup_by_slave()

   - eth: mlx5:
      - fix double free of encap_header
      - avoid referencing skb after free-ing in drop path

   - eth: hns3: fix VF reset

   - eth: mvneta: fix calls to page_pool_get_stats

  Previous releases - always broken:

   - core: set SOCK_RCU_FREE before inserting socket into hashtable

   - bpf: fix control-flow graph checking in privileged mode

   - eth: ppp: limit MRU to 64K

   - eth: stmmac: avoid rx queue overrun

   - eth: icssg-prueth: fix error cleanup on failing initialization

   - eth: hns3: fix out-of-bounds access may occur when coalesce info is
     read via debugfs

   - eth: cortina: handle large frames

  Misc:

   - selftests: gso: support CONFIG_MAX_SKB_FRAGS up to 45"

* tag 'net-6.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (78 commits)
  macvlan: Don't propagate promisc change to lower dev in passthru
  net: sched: do not offload flows with a helper in act_ct
  net/mlx5e: Check return value of snprintf writing to fw_version buffer for representors
  net/mlx5e: Check return value of snprintf writing to fw_version buffer
  net/mlx5e: Reduce the size of icosq_str
  net/mlx5: Increase size of irq name buffer
  net/mlx5e: Update doorbell for port timestamping CQ before the software counter
  net/mlx5e: Track xmit submission to PTP WQ after populating metadata map
  net/mlx5e: Avoid referencing skb after free-ing in drop path of mlx5e_sq_xmit_wqe
  net/mlx5e: Don't modify the peer sent-to-vport rules for IPSec offload
  net/mlx5e: Fix pedit endianness
  net/mlx5e: fix double free of encap_header in update funcs
  net/mlx5e: fix double free of encap_header
  net/mlx5: Decouple PHC .adjtime and .adjphase implementations
  net/mlx5: DR, Allow old devices to use multi destination FTE
  net/mlx5: Free used cpus mask when an IRQ is released
  Revert "net/mlx5: DR, Supporting inline WQE when possible"
  bpf: Do not allocate percpu memory at init stage
  net: Fix undefined behavior in netdev name allocation
  dt-bindings: net: ethernet-controller: Fix formatting error
  ...
2023-11-16 07:51:26 -05:00
Jakub Kicinski
a6a6a0a9fd Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:

====================
pull-request: bpf 2023-11-15

We've added 7 non-merge commits during the last 6 day(s) which contain
a total of 9 files changed, 200 insertions(+), 49 deletions(-).

The main changes are:

1) Do not allocate bpf specific percpu memory unconditionally, from Yonghong.

2) Fix precision backtracking instruction iteration, from Andrii.

3) Fix control flow graph checking, from Andrii.

4) Fix xskxceiver selftest build, from Anders.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf: Do not allocate percpu memory at init stage
  selftests/bpf: add more test cases for check_cfg()
  bpf: fix control-flow graph checking in privileged mode
  selftests/bpf: add edge case backtracking logic test
  bpf: fix precision backtracking instruction iteration
  bpf: handle ldimm64 properly in check_cfg()
  selftests: bpf: xskxceiver: ksft_print_msg: fix format type error
====================

Link: https://lore.kernel.org/r/20231115214949.48854-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-15 22:28:02 -08:00
Breno Leitao
edf1454432 selftests/mm: add hugetlb_fault_after_madv to .gitignore
commit 116d57303a ("selftests/mm: add a new test for madv and hugetlb")
added a new test case, but, it didn't add the binary name in
tools/testing/selftests/mm/.gitignore.

Add hugetlb_fault_after_madv to tools/testing/selftests/mm/.gitignore.

Link: https://lkml.kernel.org/r/20231103173400.1608403-2-leitao@debian.org
Fixes: 116d57303a ("selftests/mm: add a new test for madv and hugetlb")
Signed-off-by: Breno Leitao <leitao@debian.org>
Reported-by: Ryan Roberts <ryan.roberts@arm.com>
Closes: https://lore.kernel.org/all/662df57e-47f1-4c15-9b84-f2f2d587fc5c@arm.com/
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-11-15 15:30:09 -08:00
Breno Leitao
dd9b35efd7 selftests/mm: restore number of hugepages
The test mm `hugetlb_fault_after_madv` selftest needs one and only one
huge page to run, thus it sets `/proc/sys/vm/nr_hugepages` to 1.

The problem is that further tests require the previous number of hugepages
allocated in order to succeed.

Save the number of huge pages before changing it, and restore it once the
test finishes, so, further tests could run successfully.

Link: https://lkml.kernel.org/r/20231103173400.1608403-1-leitao@debian.org
Fixes: 116d57303a ("selftests/mm: add a new test for madv and hugetlb")
Signed-off-by: Breno Leitao <leitao@debian.org>
Reported-by: Ryan Roberts <ryan.roberts@arm.com>
Closes: https://lore.kernel.org/all/662df57e-47f1-4c15-9b84-f2f2d587fc5c@arm.com/
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-11-15 15:30:08 -08:00
Muhammad Usama Anjum
9297e5360c selftests: mm: fix some build warnings
Fix build warnings:
pagemap_ioctl.c:1154:38: warning: format `%s' expects a matching `char *' argument [-Wformat=]
pagemap_ioctl.c:1162:51: warning: format `%ld' expects argument of type `long int', but argument 2 has type `int' [-Wformat=]
pagemap_ioctl.c:1192:51: warning: format `%ld' expects argument of type `long int', but argument 2 has type `int' [-Wformat=]
pagemap_ioctl.c:1600:51: warning: format `%ld' expects argument of type `long int', but argument 2 has type `int' [-Wformat=]
pagemap_ioctl.c:1628:51: warning: format `%ld' expects argument of type `long int', but argument 2 has type `int' [-Wformat=]

Link: https://lkml.kernel.org/r/20231103182343.2874015-2-usama.anjum@collabora.com
Fixes: 46fd75d4a3 ("selftests: mm: add pagemap ioctl tests")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-11-15 15:30:08 -08:00
Muhammad Usama Anjum
019b277b68 selftests: mm: skip whole test instead of failure
Some architectures don't support userfaultfd.  Skip running the whole test
on them instead of registering the failure.

Link: https://lkml.kernel.org/r/20231103182343.2874015-1-usama.anjum@collabora.com
Fixes: 46fd75d4a3 ("selftests: mm: add pagemap ioctl tests")

Reported-by: Ryan Roberts <ryan.roberts@arm.com>
Closes: https://lore.kernel.org/all/f8463381-2697-49e9-9460-9dc73452830d@arm.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-11-15 15:30:08 -08:00
Paolo Abeni
7cefbe5e1d selftests: mptcp: fix fastclose with csum failure
Running the mp_join selftest manually with the following command line:

  ./mptcp_join.sh -z -C

leads to some failures:

  002 fastclose server test
  # ...
  rtx                                 [fail] got 1 MP_RST[s] TX expected 0
  # ...
  rstrx                               [fail] got 1 MP_RST[s] RX expected 0

The problem is really in the wrong expectations for the RST checks
implied by the csum validation. Note that the same check is repeated
explicitly in the same test-case, with the correct expectation and
pass successfully.

Address the issue explicitly setting the correct expectation for
the failing checks.

Reported-by: Xiumei Mu <xmu@redhat.com>
Fixes: 6bf41020b7 ("selftests: mptcp: update and extend fastclose test-cases")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20231114-upstream-net-20231113-mptcp-misc-fixes-6-7-rc2-v1-5-7b9cd6a7b7f4@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-14 20:10:21 -08:00
Linus Torvalds
4eeee6636a LoongArch changes for v6.7
1, Support PREEMPT_DYNAMIC with static keys;
 2, Relax memory ordering for atomic operations;
 3, Support BPF CPU v4 instructions for LoongArch;
 4, Some build and runtime warning fixes.
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmVQWXgWHGNoZW5odWFj
 YWlAa2VybmVsLm9yZwAKCRAChivD8uImepDTEACS808EsgSNIM1+JwldhdqKOErt
 XDWlLuIddVpenInx8F+9GnZJzKBU+wl+Ow5ejcVarjcecIJDv5UhoVrbhpeOHkfv
 RszRXQR4p/ZNSFvdraYDjjJ9UX6bp5rq7vMUC2d9bLazMauAfwf7T/HJ5qj9OYZi
 RLlcwaKo2UQHYsT7nJicjh0qpH1YpZQBYTaUUCwzilzB6vAIOTf6X12vFmhtM/i+
 5RIPnesMA1IQSm2ywUODpDHCs7Pirvy8aJvx0CsYdi3xl1yg3pUS6u69Ms61uWlw
 29yYhNbWmVnDikTVLTNISDb/jwto5SAVB2KQKBhF1trF4ZBNE6r7sP4m2tfllYo9
 KXK9tm0U8McS5o46Qd5er6eEnxL7mEeAsc12tNKUYOMe3SIkmHJmj/rZQOtpsiBg
 zqQsYkGUfO2VAwMWiGke8dxPZElOYwZ3UCOpbEpXEXy3NW71VJTIuQFGmsYKJhdy
 3xaAtQxdffE5yUTt2j3Y8Mex2b2oSUBSF263imsZjzWOOxd480iaoejtamf1V779
 bElevzZjMDmbiQ7kiVSf96TWc7iYcSv33jhP4DorKIqnPseYPfrXEeD1xY7JV+IU
 kkvSlO0hAJzVMmQgu5n0PPT1wrVpuvwtbsfcRobIkr1vktZyLaKHRq7rh4R5HTRL
 ZUUm6c0kUDywGT+J4A==
 =bmFe
 -----END PGP SIGNATURE-----

Merge tag 'loongarch-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - support PREEMPT_DYNAMIC with static keys

 - relax memory ordering for atomic operations

 - support BPF CPU v4 instructions for LoongArch

 - some build and runtime warning fixes

* tag 'loongarch-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  selftests/bpf: Enable cpu v4 tests for LoongArch
  LoongArch: BPF: Support signed mod instructions
  LoongArch: BPF: Support signed div instructions
  LoongArch: BPF: Support 32-bit offset jmp instructions
  LoongArch: BPF: Support unconditional bswap instructions
  LoongArch: BPF: Support sign-extension mov instructions
  LoongArch: BPF: Support sign-extension load instructions
  LoongArch: Add more instruction opcodes and emit_* helpers
  LoongArch/smp: Call rcutree_report_cpu_starting() earlier
  LoongArch: Relax memory ordering for atomic operations
  LoongArch: Mark __percpu functions as always inline
  LoongArch: Disable module from accessing external data directly
  LoongArch: Support PREEMPT_DYNAMIC with static keys
2023-11-12 10:58:08 -08:00
Ani Sinha
c3803203bc hv/hv_kvp_daemon: Some small fixes for handling NM keyfiles
Some small fixes:
 - lets make sure we are not adding ipv4 addresses in ipv6 section in
   keyfile and vice versa.
 - ADDR_FAMILY_IPV6 is a bit in addr_family. Test that bit instead of
   checking the whole value of addr_family.
 - Some trivial fixes in hv_set_ifconfig.sh.

These fixes are proposed after doing some internal testing at Red Hat.

CC: Shradha Gupta <shradhagupta@linux.microsoft.com>
CC: Saurabh Sengar <ssengar@linux.microsoft.com>
Fixes: 42999c9046 ("hv/hv_kvp_daemon:Support for keyfile based connection profile")
Signed-off-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Shradha Gupta <Shradhagupta@linux.microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20231016133122.2419537-1-anisinha@redhat.com>
2023-11-10 23:27:46 +00:00
Andrii Nakryiko
e2e57d637a selftests/bpf: add more test cases for check_cfg()
Add a few more simple cases to validate proper privileged vs unprivileged
loop detection behavior. conditional_loop2 is the one reported by Hao
Sun that triggered this set of fixes.

Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Suggested-by: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231110061412.2995786-2-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-09 22:57:25 -08:00
Andrii Nakryiko
10e14e9652 bpf: fix control-flow graph checking in privileged mode
When BPF program is verified in privileged mode, BPF verifier allows
bounded loops. This means that from CFG point of view there are
definitely some back-edges. Original commit adjusted check_cfg() logic
to not detect back-edges in control flow graph if they are resulting
from conditional jumps, which the idea that subsequent full BPF
verification process will determine whether such loops are bounded or
not, and either accept or reject the BPF program. At least that's my
reading of the intent.

Unfortunately, the implementation of this idea doesn't work correctly in
all possible situations. Conditional jump might not result in immediate
back-edge, but just a few unconditional instructions later we can arrive
at back-edge. In such situations check_cfg() would reject BPF program
even in privileged mode, despite it might be bounded loop. Next patch
adds one simple program demonstrating such scenario.

To keep things simple, instead of trying to detect back edges in
privileged mode, just assume every back edge is valid and let subsequent
BPF verification prove or reject bounded loops.

Note a few test changes. For unknown reason, we have a few tests that
are specified to detect a back-edge in a privileged mode, but looking at
their code it seems like the right outcome is passing check_cfg() and
letting subsequent verification to make a decision about bounded or not
bounded looping.

Bounded recursion case is also interesting. The example should pass, as
recursion is limited to just a few levels and so we never reach maximum
number of nested frames and never exhaust maximum stack depth. But the
way that max stack depth logic works today it falsely detects this as
exceeding max nested frame count. This patch series doesn't attempt to
fix this orthogonal problem, so we just adjust expected verifier failure.

Suggested-by: Alexei Starovoitov <ast@kernel.org>
Fixes: 2589726d12 ("bpf: introduce bounded loops")
Reported-by: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231110061412.2995786-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-09 22:57:24 -08:00
Andrii Nakryiko
62ccdb11d3 selftests/bpf: add edge case backtracking logic test
Add a dedicated selftests to try to set up conditions to have a state
with same first and last instruction index, but it actually is a loop
3->4->1->2->3. This confuses mark_chain_precision() if verifier doesn't
take into account jump history.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231110002638.4168352-4-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-09 20:11:20 -08:00
Andrii Nakryiko
3feb263bb5 bpf: handle ldimm64 properly in check_cfg()
ldimm64 instructions are 16-byte long, and so have to be handled
appropriately in check_cfg(), just like the rest of BPF verifier does.

This has implications in three places:
  - when determining next instruction for non-jump instructions;
  - when determining next instruction for callback address ldimm64
    instructions (in visit_func_call_insn());
  - when checking for unreachable instructions, where second half of
    ldimm64 is expected to be unreachable;

We take this also as an opportunity to report jump into the middle of
ldimm64. And adjust few test_verifier tests accordingly.

Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Reported-by: Hao Sun <sunhao.th@gmail.com>
Fixes: 475fb78fbf ("bpf: verifier (add branch/goto checks)")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231110002638.4168352-2-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-09 20:11:20 -08:00
Anders Roxell
fe69a1b1b6 selftests: bpf: xskxceiver: ksft_print_msg: fix format type error
Crossbuilding selftests/bpf for architecture arm64, format specifies
type error show up like.

xskxceiver.c:912:34: error: format specifies type 'int' but the argument
has type '__u64' (aka 'unsigned long long') [-Werror,-Wformat]
 ksft_print_msg("[%s] expected meta_count [%d], got meta_count [%d]\n",
                                                                ~~
                                                                %llu
                __func__, pkt->pkt_nb, meta->count);
                                       ^~~~~~~~~~~
xskxceiver.c:929:55: error: format specifies type 'unsigned long long' but
 the argument has type 'u64' (aka 'unsigned long') [-Werror,-Wformat]
 ksft_print_msg("Frag invalid addr: %llx len: %u\n", addr, len);
                                    ~~~~             ^~~~

Fixing the issues by casting to (unsigned long long) and changing the
specifiers to be %llu from %d and %u, since with u64s it might be %llx
or %lx, depending on architecture.

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Link: https://lore.kernel.org/r/20231109174328.1774571-1-anders.roxell@linaro.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-11-09 19:18:12 -08:00
Linus Torvalds
89cdf9d556 Including fixes from netfilter and bpf.
Current release - regressions:
 
  - sched: fix SKB_NOT_DROPPED_YET splat under debug config
 
 Current release - new code bugs:
 
  - tcp: fix usec timestamps with TCP fastopen
 
  - tcp_sigpool: fix some off by one bugs
 
  - tcp: fix possible out-of-bounds reads in tcp_hash_fail()
 
  - tcp: fix SYN option room calculation for TCP-AO
 
  - bpf: fix compilation error without CGROUPS
 
  - ptp:
    - ptp_read() should not release queue
    - fix tsevqs corruption
 
 Previous releases - regressions:
 
  - llc: verify mac len before reading mac header
 
 Previous releases - always broken:
 
  - bpf:
    - fix check_stack_write_fixed_off() to correctly spill imm
    - fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END
    - check map->usercnt after timer->timer is assigned
 
  - dsa: lan9303: consequently nested-lock physical MDIO
 
  - dccp/tcp: call security_inet_conn_request() after setting IP addr
 
  - tg3: fix the TX ring stall due to incorrect full ring handling
 
  - phylink: initialize carrier state at creation
 
  - ice: fix direction of VF rules in switchdev mode
 
 Misc:
 
  - fill in a bunch of missing MODULE_DESCRIPTION()s, more to come
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmVNRnAACgkQMUZtbf5S
 IrsYaA/+IUoYi96/oLtvvrET6HIbXeMaLKef0UlytEicQKy8h5EWlhcTZPhQEY0g
 dtaKOemQsO0dQTma4eQBiBDHeCeSkitgD9p7fh0i+//QFYWSFqHrBiF2mlToc/ZQ
 T1p4BlVL7D2Xsr1Lki93zk+EhFGEy2KroYgrWbZc9TWE5ap9PtSVF9eqeHAVCmZ7
 ocre/eo4pqUM9rAHIAyhoL+0xtVQ59dBevbJC0qYcmflhafr82Gtdveo6pBBKuYm
 GhwbRrAXER3Neav9c6NHqat4zsMwGpC27SiN9dYWm6dlkeS9U9t2PUu71OkJGVfw
 VaSE+utkC/WmzGbuiUIjqQLBrRe372ItHCr78BfSRMshS+RBTHtoK7njeH8Iv67E
 RsMeCyVNj9dtGlOQG5JAv8IoCQ1WbMw9B36Yzw3ip/MmDX/ntXz7Dcr4ZMZ6VURS
 CHhHFZPnmMykMXkT6SIlxeAg2r8ELtESzkvLimdTVFPAlk3cPkibKJbh3F/tEqXS
 PDb3y0uoEgRQBAsWXXx9FQEvv9rTL6YrzbMhmJBIIEoNxppQYQ7FZBJX9utAVp5B
 1GdyqhR6IRTaKb9cMRj/K1xPwm2KgCw9xj9pjKdAA7QUMslXbFp8blv1rIkFGshg
 hiNXmPcI8wo0j+0lZYktEcIERL5y6c8BgK2NnPU6RULua96tuQ4=
 =k6Wk
 -----END PGP SIGNATURE-----

Merge tag 'net-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter and bpf.

  Current release - regressions:

   - sched: fix SKB_NOT_DROPPED_YET splat under debug config

  Current release - new code bugs:

   - tcp:
       - fix usec timestamps with TCP fastopen
       - fix possible out-of-bounds reads in tcp_hash_fail()
       - fix SYN option room calculation for TCP-AO

   - tcp_sigpool: fix some off by one bugs

   - bpf: fix compilation error without CGROUPS

   - ptp:
       - ptp_read() should not release queue
       - fix tsevqs corruption

  Previous releases - regressions:

   - llc: verify mac len before reading mac header

  Previous releases - always broken:

   - bpf:
       - fix check_stack_write_fixed_off() to correctly spill imm
       - fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END
       - check map->usercnt after timer->timer is assigned

   - dsa: lan9303: consequently nested-lock physical MDIO

   - dccp/tcp: call security_inet_conn_request() after setting IP addr

   - tg3: fix the TX ring stall due to incorrect full ring handling

   - phylink: initialize carrier state at creation

   - ice: fix direction of VF rules in switchdev mode

  Misc:

   - fill in a bunch of missing MODULE_DESCRIPTION()s, more to come"

* tag 'net-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits)
  net: ti: icss-iep: fix setting counter value
  ptp: fix corrupted list in ptp_open
  ptp: ptp_read should not release queue
  net_sched: sch_fq: better validate TCA_FQ_WEIGHTS and TCA_FQ_PRIOMAP
  net: kcm: fill in MODULE_DESCRIPTION()
  net/sched: act_ct: Always fill offloading tuple iifidx
  netfilter: nat: fix ipv6 nat redirect with mapped and scoped addresses
  netfilter: xt_recent: fix (increase) ipv6 literal buffer length
  ipvs: add missing module descriptions
  netfilter: nf_tables: remove catchall element in GC sync path
  netfilter: add missing module descriptions
  drivers/net/ppp: use standard array-copy-function
  net: enetc: shorten enetc_setup_xdp_prog() error message to fit NETLINK_MAX_FMTMSG_LEN
  virtio/vsock: Fix uninit-value in virtio_transport_recv_pkt()
  r8169: respect userspace disabling IFF_MULTICAST
  selftests/bpf: get trusted cgrp from bpf_iter__cgroup directly
  bpf: Let verifier consider {task,cgroup} is trusted in bpf_iter_reg
  net: phylink: initialize carrier state at creation
  test/vsock: add dobule bind connect test
  test/vsock: refactor vsock_accept
  ...
2023-11-09 17:09:35 -08:00
Jakub Kicinski
942b8b38de bpf-for-netdev
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZUsiDAAKCRDbK58LschI
 g9xXAQCaFjj55sXDpr1qKG2D3PMSDURx7SzmpzIay/A/dqVDPgEAlgU6XsMW6w6S
 poMN8KniDLtBgj6nIKfJEAgIXeIYTAs=
 =qXjW
 -----END PGP SIGNATURE-----

Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Daniel Borkmann says:

====================
pull-request: bpf 2023-11-08

We've added 16 non-merge commits during the last 6 day(s) which contain
a total of 30 files changed, 341 insertions(+), 130 deletions(-).

The main changes are:

1) Fix a BPF verifier issue in precision tracking for BPF_ALU | BPF_TO_BE |
   BPF_END where the source register was incorrectly marked as precise,
   from Shung-Hsi Yu.

2) Fix a concurrency issue in bpf_timer where the former could still have
   been alive after an application releases or unpins the map, from Hou Tao.

3) Fix a BPF verifier issue where immediates are incorrectly cast to u32
   before being spilled and therefore losing sign information, from Hao Sun.

4) Fix a misplaced BPF_TRACE_ITER in check_css_task_iter_allowlist which
   incorrectly compared bpf_prog_type with bpf_attach_type, from Chuyi Zhou.

5) Add __bpf_hook_{start,end} as well as __bpf_kfunc_{start,end}_defs macros,
   migrate all BPF-related __diag callsites over to it, and add a new
   __diag_ignore_all for -Wmissing-declarations to the macros to address
   recent build warnings, from Dave Marchevsky.

6) Fix broken BPF selftest build of xdp_hw_metadata test on architectures
   where char is not signed, from Björn Töpel.

7) Fix test_maps selftest to properly use LIBBPF_OPTS() macro to initialize
   the bpf_map_create_opts, from Andrii Nakryiko.

8) Fix bpffs selftest to avoid unmounting /sys/kernel/debug as it may have
   been mounted and used by other applications already, from Manu Bretelle.

9) Fix a build issue without CONFIG_CGROUPS wrt css_task open-coded
   iterators, from Matthieu Baerts.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: get trusted cgrp from bpf_iter__cgroup directly
  bpf: Let verifier consider {task,cgroup} is trusted in bpf_iter_reg
  selftests/bpf: Fix broken build where char is unsigned
  selftests/bpf: precision tracking test for BPF_NEG and BPF_END
  bpf: Fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END
  selftests/bpf: Add test for using css_task iter in sleepable progs
  selftests/bpf: Add tests for css_task iter combining with cgroup iter
  bpf: Relax allowlist for css_task iter
  selftests/bpf: fix test_maps' use of bpf_map_create_opts
  bpf: Check map->usercnt after timer->timer is assigned
  bpf: Add __bpf_hook_{start,end} macros
  bpf: Add __bpf_kfunc_{start,end}_defs macros
  selftests/bpf: fix test_bpffs
  selftests/bpf: Add test for immediate spilled to stack
  bpf: Fix check_stack_write_fixed_off() to correctly spill imm
  bpf: fix compilation error without CGROUPS
====================

Link: https://lore.kernel.org/r/20231108132448.1970-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-11-08 17:56:14 -08:00
Linus Torvalds
d46392bbf5 RISC-V Patches for the 6.7 Merge Window, Part 1
* Support for cbo.zero in userspace.
 * Support for CBOs on ACPI-based systems.
 * A handful of improvements for the T-Head cache flushing ops.
 * Support for software shadow call stacks.
 * Various cleanups and fixes.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmVJAJoTHHBhbG1lckBk
 YWJiZWx0LmNvbQAKCRAuExnzX7sYiWZrD/9ECV/0tuX5LbS56kA0ElkwiakyIVGu
 ZVuF26yGJ6w+XvwnHPhqKNVN0ReYR6s6CwH1WpHI5Du9QHZGQU3DKJ43dFMTP3Dn
 dQFli7QJ+tsNo1nre8NZWKj5Ac+Cu906F794qM0q0XrZmyb9DY3ojVYJAYy+dtoo
 /9gwbB7P0GLyDlURLn48oQyz36WQW3CkL5Jkfu+uYwnFe9DAFtfakIKq5mLlNuaH
 PgUk8pAVhSy2GdPOGFtnFFhdXMrTjpgxdo62ZIZC0lbsts26Dxp95oUygqMg51Iy
 ilaXkA2U1c1+gFQNpEove7BVZa5708Kaj6RLQ3/kAJblAzibszwQvIWlWOh7RVni
 3GQAS7/0D0+0cjDwXdWaPIaFFzLfi3bDxRYkc7n59p6nOz+GrxnSNsRPQJGgYxeU
 oTtJfaqWKntm72iutiHmXgx/pvAxWOHpqDnSTlDdtjvgzXCplqBbxZFF/azj30o5
 jplNW5YvdvD9fviYMAoGSOz03IwDeZF5rMlAhqu6vXlyD2//mID82yw/hBluIA3+
 /hLo5QfTLiUGs9nnijxMcfoyusN6AXsJOxwYdAJCIuJOr78YUj0S974gd9KvJXma
 KedrwRVwW7KE7CwY1jhrWBsZEpzl8YrtpMDN47y4gRtDZN8XJMQ+lHqd+BHT/DUO
 TGUCYi5xvr6Vlw==
 =hKWl
 -----END PGP SIGNATURE-----

Merge tag 'riscv-for-linus-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Support for cbo.zero in userspace

 - Support for CBOs on ACPI-based systems

 - A handful of improvements for the T-Head cache flushing ops

 - Support for software shadow call stacks

 - Various cleanups and fixes

* tag 'riscv-for-linus-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (31 commits)
  RISC-V: hwprobe: Fix vDSO SIGSEGV
  riscv: configs: defconfig: Enable configs required for RZ/Five SoC
  riscv: errata: prefix T-Head mnemonics with th.
  riscv: put interrupt entries into .irqentry.text
  riscv: mm: Update the comment of CONFIG_PAGE_OFFSET
  riscv: Using TOOLCHAIN_HAS_ZIHINTPAUSE marco replace zihintpause
  riscv/mm: Fix the comment for swap pte format
  RISC-V: clarify the QEMU workaround in ISA parser
  riscv: correct pt_level name via pgtable_l5/4_enabled
  RISC-V: Provide pgtable_l5_enabled on rv32
  clocksource: timer-riscv: Increase rating of clock_event_device for Sstc
  clocksource: timer-riscv: Don't enable/disable timer interrupt
  lkdtm: Fix CFI_BACKWARD on RISC-V
  riscv: Use separate IRQ shadow call stacks
  riscv: Implement Shadow Call Stack
  riscv: Move global pointer loading to a macro
  riscv: Deduplicate IRQ stack switching
  riscv: VMAP_STACK overflow detection thread-safe
  RISC-V: cacheflush: Initialize CBO variables on ACPI systems
  RISC-V: ACPI: RHCT: Add function to get CBO block sizes
  ...
2023-11-08 09:21:18 -08:00
Hengqi Chen
1d375d6546 selftests/bpf: Enable cpu v4 tests for LoongArch
Enable the cpu v4 tests for LoongArch. Currently, we don't have BPF
trampoline in LoongArch JIT, so the fentry test `test_ptr_struct_arg`
still failed, will followup.

Test result attached below:

  # ./test_progs -t verifier_sdiv,verifier_movsx,verifier_ldsx,verifier_gotol,verifier_bswap
  #316/1   verifier_bswap/BSWAP, 16:OK
  #316/2   verifier_bswap/BSWAP, 16 @unpriv:OK
  #316/3   verifier_bswap/BSWAP, 32:OK
  #316/4   verifier_bswap/BSWAP, 32 @unpriv:OK
  #316/5   verifier_bswap/BSWAP, 64:OK
  #316/6   verifier_bswap/BSWAP, 64 @unpriv:OK
  #316     verifier_bswap:OK
  #330/1   verifier_gotol/gotol, small_imm:OK
  #330/2   verifier_gotol/gotol, small_imm @unpriv:OK
  #330     verifier_gotol:OK
  #338/1   verifier_ldsx/LDSX, S8:OK
  #338/2   verifier_ldsx/LDSX, S8 @unpriv:OK
  #338/3   verifier_ldsx/LDSX, S16:OK
  #338/4   verifier_ldsx/LDSX, S16 @unpriv:OK
  #338/5   verifier_ldsx/LDSX, S32:OK
  #338/6   verifier_ldsx/LDSX, S32 @unpriv:OK
  #338/7   verifier_ldsx/LDSX, S8 range checking, privileged:OK
  #338/8   verifier_ldsx/LDSX, S16 range checking:OK
  #338/9   verifier_ldsx/LDSX, S16 range checking @unpriv:OK
  #338/10  verifier_ldsx/LDSX, S32 range checking:OK
  #338/11  verifier_ldsx/LDSX, S32 range checking @unpriv:OK
  #338     verifier_ldsx:OK
  #349/1   verifier_movsx/MOV32SX, S8:OK
  #349/2   verifier_movsx/MOV32SX, S8 @unpriv:OK
  #349/3   verifier_movsx/MOV32SX, S16:OK
  #349/4   verifier_movsx/MOV32SX, S16 @unpriv:OK
  #349/5   verifier_movsx/MOV64SX, S8:OK
  #349/6   verifier_movsx/MOV64SX, S8 @unpriv:OK
  #349/7   verifier_movsx/MOV64SX, S16:OK
  #349/8   verifier_movsx/MOV64SX, S16 @unpriv:OK
  #349/9   verifier_movsx/MOV64SX, S32:OK
  #349/10  verifier_movsx/MOV64SX, S32 @unpriv:OK
  #349/11  verifier_movsx/MOV32SX, S8, range_check:OK
  #349/12  verifier_movsx/MOV32SX, S8, range_check @unpriv:OK
  #349/13  verifier_movsx/MOV32SX, S16, range_check:OK
  #349/14  verifier_movsx/MOV32SX, S16, range_check @unpriv:OK
  #349/15  verifier_movsx/MOV32SX, S16, range_check 2:OK
  #349/16  verifier_movsx/MOV32SX, S16, range_check 2 @unpriv:OK
  #349/17  verifier_movsx/MOV64SX, S8, range_check:OK
  #349/18  verifier_movsx/MOV64SX, S8, range_check @unpriv:OK
  #349/19  verifier_movsx/MOV64SX, S16, range_check:OK
  #349/20  verifier_movsx/MOV64SX, S16, range_check @unpriv:OK
  #349/21  verifier_movsx/MOV64SX, S32, range_check:OK
  #349/22  verifier_movsx/MOV64SX, S32, range_check @unpriv:OK
  #349/23  verifier_movsx/MOV64SX, S16, R10 Sign Extension:OK
  #349/24  verifier_movsx/MOV64SX, S16, R10 Sign Extension @unpriv:OK
  #349     verifier_movsx:OK
  #361/1   verifier_sdiv/SDIV32, non-zero imm divisor, check 1:OK
  #361/2   verifier_sdiv/SDIV32, non-zero imm divisor, check 1 @unpriv:OK
  #361/3   verifier_sdiv/SDIV32, non-zero imm divisor, check 2:OK
  #361/4   verifier_sdiv/SDIV32, non-zero imm divisor, check 2 @unpriv:OK
  #361/5   verifier_sdiv/SDIV32, non-zero imm divisor, check 3:OK
  #361/6   verifier_sdiv/SDIV32, non-zero imm divisor, check 3 @unpriv:OK
  #361/7   verifier_sdiv/SDIV32, non-zero imm divisor, check 4:OK
  #361/8   verifier_sdiv/SDIV32, non-zero imm divisor, check 4 @unpriv:OK
  #361/9   verifier_sdiv/SDIV32, non-zero imm divisor, check 5:OK
  #361/10  verifier_sdiv/SDIV32, non-zero imm divisor, check 5 @unpriv:OK
  #361/11  verifier_sdiv/SDIV32, non-zero imm divisor, check 6:OK
  #361/12  verifier_sdiv/SDIV32, non-zero imm divisor, check 6 @unpriv:OK
  #361/13  verifier_sdiv/SDIV32, non-zero imm divisor, check 7:OK
  #361/14  verifier_sdiv/SDIV32, non-zero imm divisor, check 7 @unpriv:OK
  #361/15  verifier_sdiv/SDIV32, non-zero imm divisor, check 8:OK
  #361/16  verifier_sdiv/SDIV32, non-zero imm divisor, check 8 @unpriv:OK
  #361/17  verifier_sdiv/SDIV32, non-zero reg divisor, check 1:OK
  #361/18  verifier_sdiv/SDIV32, non-zero reg divisor, check 1 @unpriv:OK
  #361/19  verifier_sdiv/SDIV32, non-zero reg divisor, check 2:OK
  #361/20  verifier_sdiv/SDIV32, non-zero reg divisor, check 2 @unpriv:OK
  #361/21  verifier_sdiv/SDIV32, non-zero reg divisor, check 3:OK
  #361/22  verifier_sdiv/SDIV32, non-zero reg divisor, check 3 @unpriv:OK
  #361/23  verifier_sdiv/SDIV32, non-zero reg divisor, check 4:OK
  #361/24  verifier_sdiv/SDIV32, non-zero reg divisor, check 4 @unpriv:OK
  #361/25  verifier_sdiv/SDIV32, non-zero reg divisor, check 5:OK
  #361/26  verifier_sdiv/SDIV32, non-zero reg divisor, check 5 @unpriv:OK
  #361/27  verifier_sdiv/SDIV32, non-zero reg divisor, check 6:OK
  #361/28  verifier_sdiv/SDIV32, non-zero reg divisor, check 6 @unpriv:OK
  #361/29  verifier_sdiv/SDIV32, non-zero reg divisor, check 7:OK
  #361/30  verifier_sdiv/SDIV32, non-zero reg divisor, check 7 @unpriv:OK
  #361/31  verifier_sdiv/SDIV32, non-zero reg divisor, check 8:OK
  #361/32  verifier_sdiv/SDIV32, non-zero reg divisor, check 8 @unpriv:OK
  #361/33  verifier_sdiv/SDIV64, non-zero imm divisor, check 1:OK
  #361/34  verifier_sdiv/SDIV64, non-zero imm divisor, check 1 @unpriv:OK
  #361/35  verifier_sdiv/SDIV64, non-zero imm divisor, check 2:OK
  #361/36  verifier_sdiv/SDIV64, non-zero imm divisor, check 2 @unpriv:OK
  #361/37  verifier_sdiv/SDIV64, non-zero imm divisor, check 3:OK
  #361/38  verifier_sdiv/SDIV64, non-zero imm divisor, check 3 @unpriv:OK
  #361/39  verifier_sdiv/SDIV64, non-zero imm divisor, check 4:OK
  #361/40  verifier_sdiv/SDIV64, non-zero imm divisor, check 4 @unpriv:OK
  #361/41  verifier_sdiv/SDIV64, non-zero imm divisor, check 5:OK
  #361/42  verifier_sdiv/SDIV64, non-zero imm divisor, check 5 @unpriv:OK
  #361/43  verifier_sdiv/SDIV64, non-zero imm divisor, check 6:OK
  #361/44  verifier_sdiv/SDIV64, non-zero imm divisor, check 6 @unpriv:OK
  #361/45  verifier_sdiv/SDIV64, non-zero reg divisor, check 1:OK
  #361/46  verifier_sdiv/SDIV64, non-zero reg divisor, check 1 @unpriv:OK
  #361/47  verifier_sdiv/SDIV64, non-zero reg divisor, check 2:OK
  #361/48  verifier_sdiv/SDIV64, non-zero reg divisor, check 2 @unpriv:OK
  #361/49  verifier_sdiv/SDIV64, non-zero reg divisor, check 3:OK
  #361/50  verifier_sdiv/SDIV64, non-zero reg divisor, check 3 @unpriv:OK
  #361/51  verifier_sdiv/SDIV64, non-zero reg divisor, check 4:OK
  #361/52  verifier_sdiv/SDIV64, non-zero reg divisor, check 4 @unpriv:OK
  #361/53  verifier_sdiv/SDIV64, non-zero reg divisor, check 5:OK
  #361/54  verifier_sdiv/SDIV64, non-zero reg divisor, check 5 @unpriv:OK
  #361/55  verifier_sdiv/SDIV64, non-zero reg divisor, check 6:OK
  #361/56  verifier_sdiv/SDIV64, non-zero reg divisor, check 6 @unpriv:OK
  #361/57  verifier_sdiv/SMOD32, non-zero imm divisor, check 1:OK
  #361/58  verifier_sdiv/SMOD32, non-zero imm divisor, check 1 @unpriv:OK
  #361/59  verifier_sdiv/SMOD32, non-zero imm divisor, check 2:OK
  #361/60  verifier_sdiv/SMOD32, non-zero imm divisor, check 2 @unpriv:OK
  #361/61  verifier_sdiv/SMOD32, non-zero imm divisor, check 3:OK
  #361/62  verifier_sdiv/SMOD32, non-zero imm divisor, check 3 @unpriv:OK
  #361/63  verifier_sdiv/SMOD32, non-zero imm divisor, check 4:OK
  #361/64  verifier_sdiv/SMOD32, non-zero imm divisor, check 4 @unpriv:OK
  #361/65  verifier_sdiv/SMOD32, non-zero imm divisor, check 5:OK
  #361/66  verifier_sdiv/SMOD32, non-zero imm divisor, check 5 @unpriv:OK
  #361/67  verifier_sdiv/SMOD32, non-zero imm divisor, check 6:OK
  #361/68  verifier_sdiv/SMOD32, non-zero imm divisor, check 6 @unpriv:OK
  #361/69  verifier_sdiv/SMOD32, non-zero reg divisor, check 1:OK
  #361/70  verifier_sdiv/SMOD32, non-zero reg divisor, check 1 @unpriv:OK
  #361/71  verifier_sdiv/SMOD32, non-zero reg divisor, check 2:OK
  #361/72  verifier_sdiv/SMOD32, non-zero reg divisor, check 2 @unpriv:OK
  #361/73  verifier_sdiv/SMOD32, non-zero reg divisor, check 3:OK
  #361/74  verifier_sdiv/SMOD32, non-zero reg divisor, check 3 @unpriv:OK
  #361/75  verifier_sdiv/SMOD32, non-zero reg divisor, check 4:OK
  #361/76  verifier_sdiv/SMOD32, non-zero reg divisor, check 4 @unpriv:OK
  #361/77  verifier_sdiv/SMOD32, non-zero reg divisor, check 5:OK
  #361/78  verifier_sdiv/SMOD32, non-zero reg divisor, check 5 @unpriv:OK
  #361/79  verifier_sdiv/SMOD32, non-zero reg divisor, check 6:OK
  #361/80  verifier_sdiv/SMOD32, non-zero reg divisor, check 6 @unpriv:OK
  #361/81  verifier_sdiv/SMOD64, non-zero imm divisor, check 1:OK
  #361/82  verifier_sdiv/SMOD64, non-zero imm divisor, check 1 @unpriv:OK
  #361/83  verifier_sdiv/SMOD64, non-zero imm divisor, check 2:OK
  #361/84  verifier_sdiv/SMOD64, non-zero imm divisor, check 2 @unpriv:OK
  #361/85  verifier_sdiv/SMOD64, non-zero imm divisor, check 3:OK
  #361/86  verifier_sdiv/SMOD64, non-zero imm divisor, check 3 @unpriv:OK
  #361/87  verifier_sdiv/SMOD64, non-zero imm divisor, check 4:OK
  #361/88  verifier_sdiv/SMOD64, non-zero imm divisor, check 4 @unpriv:OK
  #361/89  verifier_sdiv/SMOD64, non-zero imm divisor, check 5:OK
  #361/90  verifier_sdiv/SMOD64, non-zero imm divisor, check 5 @unpriv:OK
  #361/91  verifier_sdiv/SMOD64, non-zero imm divisor, check 6:OK
  #361/92  verifier_sdiv/SMOD64, non-zero imm divisor, check 6 @unpriv:OK
  #361/93  verifier_sdiv/SMOD64, non-zero imm divisor, check 7:OK
  #361/94  verifier_sdiv/SMOD64, non-zero imm divisor, check 7 @unpriv:OK
  #361/95  verifier_sdiv/SMOD64, non-zero imm divisor, check 8:OK
  #361/96  verifier_sdiv/SMOD64, non-zero imm divisor, check 8 @unpriv:OK
  #361/97  verifier_sdiv/SMOD64, non-zero reg divisor, check 1:OK
  #361/98  verifier_sdiv/SMOD64, non-zero reg divisor, check 1 @unpriv:OK
  #361/99  verifier_sdiv/SMOD64, non-zero reg divisor, check 2:OK
  #361/100 verifier_sdiv/SMOD64, non-zero reg divisor, check 2 @unpriv:OK
  #361/101 verifier_sdiv/SMOD64, non-zero reg divisor, check 3:OK
  #361/102 verifier_sdiv/SMOD64, non-zero reg divisor, check 3 @unpriv:OK
  #361/103 verifier_sdiv/SMOD64, non-zero reg divisor, check 4:OK
  #361/104 verifier_sdiv/SMOD64, non-zero reg divisor, check 4 @unpriv:OK
  #361/105 verifier_sdiv/SMOD64, non-zero reg divisor, check 5:OK
  #361/106 verifier_sdiv/SMOD64, non-zero reg divisor, check 5 @unpriv:OK
  #361/107 verifier_sdiv/SMOD64, non-zero reg divisor, check 6:OK
  #361/108 verifier_sdiv/SMOD64, non-zero reg divisor, check 6 @unpriv:OK
  #361/109 verifier_sdiv/SMOD64, non-zero reg divisor, check 7:OK
  #361/110 verifier_sdiv/SMOD64, non-zero reg divisor, check 7 @unpriv:OK
  #361/111 verifier_sdiv/SMOD64, non-zero reg divisor, check 8:OK
  #361/112 verifier_sdiv/SMOD64, non-zero reg divisor, check 8 @unpriv:OK
  #361/113 verifier_sdiv/SDIV32, zero divisor:OK
  #361/114 verifier_sdiv/SDIV32, zero divisor @unpriv:OK
  #361/115 verifier_sdiv/SDIV64, zero divisor:OK
  #361/116 verifier_sdiv/SDIV64, zero divisor @unpriv:OK
  #361/117 verifier_sdiv/SMOD32, zero divisor:OK
  #361/118 verifier_sdiv/SMOD32, zero divisor @unpriv:OK
  #361/119 verifier_sdiv/SMOD64, zero divisor:OK
  #361/120 verifier_sdiv/SMOD64, zero divisor @unpriv:OK
  #361     verifier_sdiv:OK
  Summary: 5/163 PASSED, 0 SKIPPED, 0 FAILED

  # ./test_progs -t ldsx_insn
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  #116/1   ldsx_insn/map_val and probed_memory:FAIL
  #116/2   ldsx_insn/ctx_member_sign_ext:OK
  #116/3   ldsx_insn/ctx_member_narrow_sign_ext:OK
  #116     ldsx_insn:FAIL

  All error logs:
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__open 0 nsec
  test_map_val_and_probed_memory:PASS:test_ldsx_insn__load 0 nsec
  libbpf: prog 'test_ptr_struct_arg': failed to attach: ERROR: strerror_r(-524)=22
  libbpf: prog 'test_ptr_struct_arg': failed to auto-attach: -524
  test_map_val_and_probed_memory:FAIL:test_ldsx_insn__attach unexpected error: -524 (errno 524)
  #116/1   ldsx_insn/map_val and probed_memory:FAIL
  #116     ldsx_insn:FAIL
  Summary: 0/2 PASSED, 0 SKIPPED, 1 FAILED

Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-11-08 14:12:21 +08:00
Len Brown
b8337e6a78 tools/power turbostat: version 2023.11.07
Turbostat features are now table-driven (Rui Zhang)
Add support for some new platforms (Sumeet Pawnikar, Rui Zhang)
Gracefully run in configs when CPUs are limited (Rui Zhang, Srinivas Pandruvada)
misc minor fixes.

Signed-off-by: Len Brown <len.brown@intel.com>
2023-11-07 23:28:30 -05:00
Len Brown
f2c1dba311 tools/power/turbostat: bugfix "--show IPC"
turbostat --show IPC

displays "inf" for the IPC column

turbostat was missing the explicit dependency of IPC on APERF,
and thus neglected to collect APERF when only IPC was requested.

typcial use:

turbostat --quiet --show CPU,IPC

Signed-off-by: Len Brown <len.brown@intel.com>
2023-11-07 23:26:42 -05:00
Linus Torvalds
305230142a More power management updates for 6.7-rc1
- Add support for several Qualcomm SoC versions to the Qualcomm cpufreq
    driver (Robert Marko, Varadarajan Narayanan).
 
  - Fix a reference to a removed document in the cpupower utility
    documentation (Vegard Nossum).
 -----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmVKlOESHHJqd0Byand5
 c29ja2kubmV0AAoJEILEb/54YlRx1kUP/RqJkLw/HzQ0AErnhlcQ/UO3sYkxdqEy
 OwoBHSmX8fYWkXgBsBLbZYklWPi7GKhuKqMnodt0DcXONoF/2ZpJ3ZkYD3E6KWvC
 BhbBx8+ciU9IeLPmVDd+rJpHMFKwGsf8sVNoZaCa2fTqMpcFAskI7i3w+dqfc6pe
 UYD7Cp1Tmm1fBQRXRqIY/z+aak9TgxG53RIQrHhP6qeJ9YZ+ixVofWtJofkynf7V
 5ZtSjphn5iHOXdHaAcjRTUjPJn65MFeJ0/ElqG7O42mRbFBwE2jt6m8Rnjh8T6xx
 uz/ogP11hKaK5E1c4csR5BQegzk6PdUZVNv/dauWKFjat/yyNSLIqena+lJKNVjW
 X+XEV6akO32AJ/uwczl8vfCx4JzQVbzd7qqKqzi5CDvVyKwkKP0t2resThFKwYFU
 CBnmK2aGa4vpEEEiqzgAkjCecML77pcuhGNSwhi9gZQ1GezVIuend5GbYXAYSrs/
 B0MHEvQYY1Omq3N4qNPOI6JhvULRRbniVr3l1Dbgf9khRIOA6lE+ONlzaZ0yxzBM
 gNqQjGzMN7e9kPe8BCXFRx2guoPIw53Z42mrDJneSD4wX3dunWcXtzO8eLP+O9/h
 y0efGLjcvFLX+nyLJ3Pj0RQ6J7tMfVhw2Df3o6m7t0AGic/0E+rSR+Y61+vZ3TGQ
 UGwZz0Zul5Mb
 =f4QJ
 -----END PGP SIGNATURE-----

Merge tag 'pm-6.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These add new hardware support to a cpufreq driver and fix cpupower
  utility documentation:

   - Add support for several Qualcomm SoC versions to the Qualcomm
     cpufreq driver (Robert Marko, Varadarajan Narayanan)

   - Fix a reference to a removed document in the cpupower utility
     documentation (Vegard Nossum)"

* tag 'pm-6.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: qcom-nvmem: Introduce cpufreq for ipq95xx
  cpufreq: qcom-nvmem: Enable cpufreq for ipq53xx
  cpufreq: qcom-nvmem: add support for IPQ8074
  cpupower: fix reference to nonexistent document
2023-11-07 17:16:23 -08:00
Chuyi Zhou
3c5864ba9c selftests/bpf: get trusted cgrp from bpf_iter__cgroup directly
Commit f49843afde (selftests/bpf: Add tests for css_task iter combining
with cgroup iter) added a test which demonstrates how css_task iter can be
combined with cgroup iter. That test used bpf_cgroup_from_id() to convert
bpf_iter__cgroup->cgroup to a trusted ptr which is pointless now, since
with the previous fix, we can get a trusted cgroup directly from
bpf_iter__cgroup.

Signed-off-by: Chuyi Zhou <zhouchuyi@bytedance.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20231107132204.912120-3-zhouchuyi@bytedance.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-11-07 15:28:06 -08:00
Filippo Storniolo
d80f63f690 test/vsock: add dobule bind connect test
This add bind connect test which creates a listening server socket
and tries to connect a client with a bound local port to it twice.

Co-developed-by: Luigi Leonardi <luigi.leonardi@outlook.com>
Signed-off-by: Luigi Leonardi <luigi.leonardi@outlook.com>
Signed-off-by: Filippo Storniolo <f.storniolo95@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-07 22:27:07 +00:00
Filippo Storniolo
84d5fb9741 test/vsock: refactor vsock_accept
This is a preliminary patch to introduce SOCK_STREAM bind connect test.
vsock_accept() is split into vsock_listen() and vsock_accept().

Co-developed-by: Luigi Leonardi <luigi.leonardi@outlook.com>
Signed-off-by: Luigi Leonardi <luigi.leonardi@outlook.com>
Signed-off-by: Filippo Storniolo <f.storniolo95@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-07 22:27:07 +00:00
Filippo Storniolo
bfada5a767 test/vsock fix: add missing check on socket creation
Add check on socket() return value in vsock_listen()
and vsock_connect()

Co-developed-by: Luigi Leonardi <luigi.leonardi@outlook.com>
Signed-off-by: Luigi Leonardi <luigi.leonardi@outlook.com>
Signed-off-by: Filippo Storniolo <f.storniolo95@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-07 22:27:07 +00:00
Rafael J. Wysocki
36cbb924d6 Merge branch 'pm-tools'
Merge cpupower utility update for 6.7-rc1:

 - Fix a reference to a removed document in the cpupower utility
   documentation (Vegard Nossum).

* pm-tools:
  cpupower: fix reference to nonexistent document
2023-11-07 20:46:13 +01:00