Commit Graph

399766 Commits

Author SHA1 Message Date
Jingoo Han
8d450935ae wireless: rtlwifi: remove unnecessary pci_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:41 -04:00
Jingoo Han
c4978e251f wireless: wl12xx: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:41 -04:00
Jingoo Han
90650625db wireless: wlcore: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:40 -04:00
Jingoo Han
5f4fe16bac wireless: wl1251: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:40 -04:00
Jingoo Han
7204c97827 wireless: libertas: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:39 -04:00
Jingoo Han
3ec8a8d88f wireless: cw1200: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:39 -04:00
Jingoo Han
f41167026d wireless: brcmfmac: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:38 -04:00
Jingoo Han
8f616c6d31 wireless: ath9k: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:38 -04:00
Jingoo Han
b920e375be wireless: ath5k: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:37 -04:00
Sachin Kamat
5bb4101bc9 net: ath9k: Use NULL instead of false
The function returns a pointer. Hence return NULL instead of false.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:37 -04:00
Albert Pool
38e05a0e52 ar5523: Add USB ID of D-Link WUA-2340 rev A1
Signed-off-by: Albert Pool <albertpool@solcon.nl>
Reported-by: Michael Landrum <landrummd@gmail.com>
Acked-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:37 -04:00
Stanislaw Gruszka
61edc7fad6 rt2800: comment enable radio initialization sequence
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:36 -04:00
Jingoo Han
b2a312046b mwifiex: Remove casting the return value which is a void pointer
Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:36 -04:00
Zefir Kurtisi
5e88ba6228 ath9k: replace snprintf() with scnprintf()
Whenever the return value of snprintf() is used to calculate
remaining buffer-space, we wanted to use sncprintf() instead.

Indentation is adapted where possible. Some lines exceed the
line width limit, either they did it already before, or
since they can not be broken reasonably well.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:35 -04:00
Sujith Manoharan
bf7c756c5d ath9k: Add DELL 1707 to supported card table
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:35 -04:00
Sujith Manoharan
7c9a72013b ath9k: Update AR9485 1.1 initvals
* Remove duplicate array mappings.
* Fix ETSI CCA compliance.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:31 -04:00
Sujith Manoharan
6d5228fe20 ath9k: Add and use initvals for channel 14
This is missing for AR9565.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:30 -04:00
Sujith Manoharan
d3b371cb03 ath9k: Fix regulatory compliance for AR9462/AR9565
Adjust the CCA values based on the regulatory domain
present in the EEPROM.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:30 -04:00
Sujith Manoharan
3fcdd0a12e ath9k: Identify WB335 Antenna configuration
There are 2 types of WB335 cards, 1-antenna and 2-antenna.
Identify them based on PCI subsystem IDs, this will be used
for MCI/BTCOEX tweaks.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:30 -04:00
Sujith Manoharan
10631336eb ath9k: Identify CUS252 cards
These cards are based on WB335/AR9565.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:29 -04:00
Sujith Manoharan
1823a4212b ath9k: Enable antenna diversity for WB335
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:29 -04:00
Sujith Manoharan
f96bd2ad22 ath9k: Add support for AR9565 v1.0.1 LNA diversity
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:28 -04:00
Sujith Manoharan
6ac2150927 ath9k: Use correct RX gain table for AR9565
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:28 -04:00
Sujith Manoharan
c946868228 ath9k: Fix antenna diversity init for AR9565
Program the HW registers (AR_PHY_CCK_DETECT, AR_PHY_MC_GAIN_CTRL)
with the correct values for AR9565 to allow LNA combining.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:28 -04:00
Sujith Manoharan
7e12d6a496 ath9k: Bypass EEPROM for diversity cap for AR9565
Use a default antenna diversity value for AR9565 instead
of relying on the EEPROM/OTP programmed value.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:27 -04:00
Sujith Manoharan
1c6bbe4739 ath9k: Update initvals for AR9565 1.0
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-26 15:13:27 -04:00
John W. Linville
98497bb241 Merge branch 'for-linville' of git://github.com/kvalo/ath 2013-09-26 14:54:17 -04:00
Linus Torvalds
b75ff5e84b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) If the local_df boolean is set on an SKB we have to allocate a
    unique ID even if IP_DF is set in the ipv4 headers, from Ansis
    Atteka.

 2) Some fixups for the new chipset support that went into the sfc
    driver, from Ben Hutchings.

 3) Because SCTP bypasses a good chunk of, and actually duplicates, the
    logic of the ipv6 output path, some IPSEC things don't get done
    properly.  Integrate SCTP better into the ipv6 output path so that
    these problems are fixed and such issues don't get missed in the
    future either.  From Daniel Borkmann.

 4) Fix skge regressions added by the DMA mapping error return checking
    added in v3.10, from Mikulas Patocka.

 5) Kill some more IRQF_DISABLED references, from Michael Opdenacker.

 6) Fix races and deadlocks in the bridging code, from Hong Zhiguo.

 7) Fix error handling in tun_set_iff(), in particular don't leak
    resources.  From Jason Wang.

 8) Prevent format-string injection into xen-netback driver, from Kees
    Cook.

 9) Fix regression added to netpoll ARP packet handling, in particular
    check for the right ETH_P_ARP protocol code.  From Sonic Zhang.

10) Try to deal with AMD IOMMU errors when using r8169 chips, from
    Francois Romieu.

11) Cure freezes due to recent changes in the rt2x00 wireless driver,
    from Stanislaw Gruszka.

12) Don't do SPI transfers (which can sleep) in interrupt context in
    cw1200 driver, from Solomon Peachy.

13) Fix LEDs handling bug in 5720 tg3 chips already handled for 5719.
    From Nithin Sujir.

14) Make xen_netbk_count_skb_slots() count the actual number of slots
    that will be used, taking into consideration packing and other
    issues that the transmit path will run into.  From David Vrabel.

15) Use the correct maximum age when calculating the bridge
    message_age_timer, from Chris Healy.

16) Get rid of memory leaks in mcs7780 IRDA driver, from Alexey
    Khoroshilov.

17) Netfilter conntrack extensions were converted to RCU but are not
    always freed properly using kfree_rcu().  Fix from Michal Kubecek.

18) VF reset recovery not being done correctly in qlcnic driver, from
    Manish Chopra.

19) Fix inverted test in ATM nicstar driver, from Andy Shevchenko.

20) Missing workqueue destroy in cxgb4 error handling, from Wei Yang.

21) Internal switch not initialized properly in bgmac driver, from Rafał
    Miłecki.

22) Netlink messages report wrong local and remote addresses in IPv6
    tunneling, from Ding Zhi.

23) ICMP redirects should not generate socket errors in DCCP and SCTP.
    We're still working out how this should be handled for RAW and UDP
    sockets.  From Daniel Borkmann and Duan Jiong.

24) We've had several bugs wherein the network namespace's loopback
    device gets accessed after it is free'd, NULL it out so that we can
    catch these problems more readily.  From Eric W Biederman.

25) Fix regression in TCP RTO calculations, from Neal Cardwell.

26) Fix too early free of xen-netback network device when VIFs still
    exist.  From Paul Durrant.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits)
  netconsole: fix a deadlock with rtnl and netconsole's mutex
  netpoll: fix NULL pointer dereference in netpoll_cleanup
  skge: fix broken driver
  ip: generate unique IP identificator if local fragmentation is allowed
  ip: use ip_hdr() in __ip_make_skb() to retrieve IP header
  xen-netback: Don't destroy the netdev until the vif is shut down
  net:dccp: do not report ICMP redirects to user space
  cnic: Fix crash in cnic_bnx2x_service_kcq()
  bnx2x, cnic, bnx2i, bnx2fc: Fix bnx2i and bnx2fc regressions.
  vxlan: Avoid creating fdb entry with NULL destination
  tcp: fix RTO calculated from cached RTT
  drivers: net: phy: cicada.c: clears warning Use #include <linux/io.h> instead of <asm/io.h>
  net loopback: Set loopback_dev to NULL when freed
  batman-adv: set the TAG flag for the vid passed to BLA
  netfilter: nfnetlink_queue: use network skb for sequence adjustment
  net: sctp: rfc4443: do not report ICMP redirects to user space
  net: usb: cdc_ether: use usb.h macros whenever possible
  net: usb: cdc_ether: fix checkpatch errors and warnings
  net: usb: cdc_ether: Use wwan interface for Telit modules
  ip6_tunnels: raddr and laddr are inverted in nl msg
  ...
2013-09-19 13:57:28 -05:00
Nikolay Aleksandrov
c71380ff0b netconsole: fix a deadlock with rtnl and netconsole's mutex
This bug was introduced by commit
7a163bfb7c ("netconsole: avoid a crash with
multiple sysfs writers"). In store_enabled() we have the following
sequence: acquire nt->mutex then rtnl, but in the netconsole netdev
notifier we have rtnl then nt->mutex effectively leading to a deadlock.
The NULL pointer dereference that the above commit tries to fix is
actually due to another bug in netpoll_cleanup(). This is fixed by dropping
the mutex from the netdev notifier as it's already protected by rtnl.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-19 14:15:53 -04:00
Nikolay Aleksandrov
d0fe8c888b netpoll: fix NULL pointer dereference in netpoll_cleanup
I've been hitting a NULL ptr deref while using netconsole because the
np->dev check and the pointer manipulation in netpoll_cleanup are done
without rtnl and the following sequence happens when having a netconsole
over a vlan and we remove the vlan while disabling the netconsole:
	CPU 1					CPU2
					removes vlan and calls the notifier
enters store_enabled(), calls
netdev_cleanup which checks np->dev
and then waits for rtnl
					executes the netconsole netdev
					release notifier making np->dev
					== NULL and releases rtnl
continues to dereference a member of
np->dev which at this point is == NULL

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-19 14:15:53 -04:00
Mikulas Patocka
c194992cbe skge: fix broken driver
The patch 136d8f377e broke the skge driver.
Note this part of the patch:
+               if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) {
+                       dev_kfree_skb(nskb);
+                       goto resubmit;
+               }
+
                pci_unmap_single(skge->hw->pdev,
                                 dma_unmap_addr(e, mapaddr),
                                 dma_unmap_len(e, maplen),
                                 PCI_DMA_FROMDEVICE);
                skb = e->skb;
                prefetch(skb->data);
-               skge_rx_setup(skge, e, nskb, skge->rx_buf_size);

The function skge_rx_setup modifies e->skb to point to the new skb. Thus,
after this change, the new buffer, not the old, is returned to the
networking stack.

This bug is present in kernels 3.11, 3.11.1 and 3.12-rc1. The patch should
be queued for 3.11-stable.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Vasiliy Glazov <vascom2@gmail.com>
Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-19 14:15:15 -04:00
Ansis Atteka
703133de33 ip: generate unique IP identificator if local fragmentation is allowed
If local fragmentation is allowed, then ip_select_ident() and
ip_select_ident_more() need to generate unique IDs to ensure
correct defragmentation on the peer.

For example, if IPsec (tunnel mode) has to encrypt large skbs
that have local_df bit set, then all IP fragments that belonged
to different ESP datagrams would have used the same identificator.
If one of these IP fragments would get lost or reordered, then
peer could possibly stitch together wrong IP fragments that did
not belong to the same datagram. This would lead to a packet loss
or data corruption.

Signed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-19 14:11:15 -04:00
Ansis Atteka
749154aa56 ip: use ip_hdr() in __ip_make_skb() to retrieve IP header
skb->data already points to IP header, but for the sake of
consistency we can also use ip_hdr() to retrieve it.

Signed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-19 14:11:15 -04:00
Paul Durrant
279f438e36 xen-netback: Don't destroy the netdev until the vif is shut down
Without this patch, if a frontend cycles through states Closing
and Closed (which Windows frontends need to do) then the netdev
will be destroyed and requires re-invocation of hotplug scripts
to restore state before the frontend can move to Connected. Thus
when udev is not in use the backend gets stuck in InitWait.

With this patch, the netdev is left alone whilst the backend is
still online and is only de-registered and freed just prior to
destroying the vif (which is also nicely symmetrical with the
netdev allocation and registration being done during probe) so
no re-invocation of hotplug scripts is required.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-19 14:03:51 -04:00
Linus Torvalds
f05f8198e4 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 - Minor updates and fixes to the Octeon ethernet driver in staging
 - A fix to VGA_MAP_MEM() for 64 bit platforms
 - Fix a workaround for 74K/1074K processors
 - The symlink arch/mips/boot/dts/include/dt-bindings was pointing to a
   a file with a name ending in \n.  I think this may have been caused
   by a git bug with with patches sent by email
 - A build fix for VGA console on BCM1480-based systems
 - Fix PCI device access via "/sys/bus/pci/.../resource0" or similar
   work for Alchemy platforms
 - Fix potential data leak on MIPS R5 cores.  This doesn't add proper
   support for any R5 features, just ensures a kernel without such
   support will be secure to run
 - Adding a macros for the CP0 Config5 register to be used by the R5 fix
 - Make get_cycles() actually return something useful where possible
   This also requires a preparatory patch for performance sake
 - Fix a warning about the use of smp_processor_id() in preemptible
   code.  Again this includes a preparatory patch adding the
   infrastructure to be used by the actual patch
 - Finally remove pointless one-line comment

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Fix invalid symbolic link file
  MIPS: PCI: pci-bcm1480: Include missing vt.h header
  MIPS: Disable usermode switching of the FR bit for MIPS R5 CPUs.
  MIPS: Add MIPS R5 config5 register.
  MIPS: PCI: Use pci_resource_to_user to map pci memory space properly
  MIPS: 74K/1074K: Correct erratum workaround.
  MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks
  MIPS: Remove useless comment about kprobe from arch/mips/Makefile
  MIPS: Fix VGA_MAP_MEM macro.
  MIPS: Reimplement get_cycles().
  MIPS: Optimize current_cpu_type() for better code.
  MIPS: Fix accessing to per-cpu data when flushing the cache
  MIPS: Provide nice way to access boot CPU's data.
  staging: octeon-ethernet: rgmii: enable interrupts that we can handle
  staging: octeon-ethernet: remove skb alloc failure warnings
  staging: octeon-ethernet: make dropped packets to consume NAPI budget
2013-09-19 12:52:25 -05:00
Linus Torvalds
e9ff04dd94 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull ceph fixes from Sage Weil:
 "These fix several bugs with RBD from 3.11 that didn't get tested in
  time for the merge window: some error handling, a use-after-free, and
  a sequencing issue when unmapping and image races with a notify
  operation.

  There is also a patch fixing a problem with the new ceph + fscache
  code that just went in"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  fscache: check consistency does not decrement refcount
  rbd: fix error handling from rbd_snap_name()
  rbd: ignore unmapped snapshots that no longer exist
  rbd: fix use-after free of rbd_dev->disk
  rbd: make rbd_obj_notify_ack() synchronous
  rbd: complete notifies before cleaning up osd_client and rbd_dev
  libceph: add function to ensure notifies are complete
2013-09-19 12:50:37 -05:00
Madhavan Srinivasan
66b10574b8 MIPS: Fix invalid symbolic link file
Commit 3b29aa5ba2 [MIPS: add <dt-bindings/> symlink] created a symlink
file in include/dt-bindings.  Even though commit diff is fine, the symlink
is invalid and ls -lb shows a newline character at the end of the filename:

lrwxrwxrwx 1 maddy maddy 35 Sep 19 18:11 dt-bindings ->
../../../../../include/dt-bindings\n

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: steven.hill@imgtec.com
Cc: mmarek@suse.cz
Cc: swarren@nvidia.com
Cc: linux-mips@linux-mips.org
Cc: linux-kbuild@vger.kernel.org
Cc: james.hogan@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/5859/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-19 17:04:35 +02:00
Markos Chandras
88f02518d8 MIPS: PCI: pci-bcm1480: Include missing vt.h header
It's needed for the MAX_NR_CONSOLES macro.

Fixes the following build problem on a randconfig:

arch/mips/pci/pci-bcm1480.c: In function 'bcm1480_pcibios_init':
arch/mips/pci/pci-bcm1480.c:261:36: error: 'MAX_NR_CONSOLES'
undeclared (first use in this function)
arch/mips/pci/pci-bcm1480.c:261:36: note: each undeclared
identifier is reported only once for each function it appears in
make[1]: *** [arch/mips/pci/pci-bcm1480.o] Error 1

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5858/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-19 12:50:16 +02:00
Ralf Baechle
8b8a763431 MIPS: Disable usermode switching of the FR bit for MIPS R5 CPUs.
Currently the kernel will always use the FR=0 register model for O32.  If
an O32 application did enable FR=1 mode, some data from another application
might be leaked in the extra registers becoming visible.

Iow, this patch is meant to make the kernel MIPS R5 tolerant but leaves
proper MIPS R5 support to a future patchset.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-19 11:23:10 +02:00
Ralf Baechle
2f9ee82c2a MIPS: Add MIPS R5 config5 register.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-19 11:16:44 +02:00
Linus Torvalds
ed24fee24a Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm radeon/nouveau/core fixes from Dave Airlie:
 "Mostly radeon fixes, with some nouveau bios parser, ttm fix and a fix
  for AST driver"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (42 commits)
  drm/fb-helper: don't sleep for screen unblank when an oops is in progress
  drm, ttm Fix uninitialized warning
  drm/ttm: fix the tt_populated check in ttm_tt_destroy()
  drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path
  drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM
  drm/nouveau/kms: enable for non-vga pci classes
  drm/nouveau/bios/init: stub opcode 0xaa
  drm/radeon: avoid UVD corruptions on AGP cards
  drm/radeon: fix panel scaling with eDP and LVDS bridges
  drm/radeon/dpm: rework auto performance level enable
  drm/radeon: Fix hmdi typo
  drm/radeon/dpm/rs780: fix force_performance state for same sclks
  drm/radeon/dpm/rs780: don't enable sclk scaling if not required
  drm/radeon/dpm/rs780: add some sanity checking to sclk scaling
  drm/radeon/dpm/rs780: use drm_mode_vrefresh()
  drm/udl: rip out set_need_resched
  drm/ast: fix the ast open key function
  drm/radeon/dpm: add bapm callback for kb/kv
  drm/radeon/dpm: add bapm callback for trinity
  drm/radeon/dpm: add infrastructure to properly handle bapm
  ...
2013-09-18 21:17:44 -05:00
Daniel Vetter
928c2f0c00 drm/fb-helper: don't sleep for screen unblank when an oops is in progress
Otherwise the system will burn even brighter and worse, leave the user
wondering what's going on exactly.

Since we already have a panic handler which will (try) to restore the
entire fbdev console mode, we can just bail out.  Inspired by a patch from
Konstantin Khlebnikov.  The callchain leading to this, cut&pasted from
Konstantin's original patch:

callstack:
panic()
bust_spinlocks(1)
unblank_screen()
vc->vc_sw->con_blank()
fbcon_blank()
fb_blank()
info->fbops->fb_blank()
drm_fb_helper_blank()
drm_fb_helper_dpms()
drm_modeset_lock_all()
mutex_lock(&dev->mode_config.mutex)

Note that the entire locking in the fb helper around panic/sysrq and kdbg
is ...  non-existant.  So we have a decent change of blowing up
everything.  But since reworking this ties in with funny concepts like the
fbdev notifier chain or the impressive things which happen around
console_lock while oopsing, I'll leave that as an exercise for braver
souls than me.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Dave Airlie <airlied@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-09-19 11:54:34 +10:00
Prarit Bhargava
bcf73a1083 drm, ttm Fix uninitialized warning
Fix uninitialized warning.

drivers/gpu/drm/ttm/ttm_object.c: In function ‘ttm_base_object_lookup’:
drivers/gpu/drm/ttm/ttm_object.c:213:10: error: ‘base’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
  kref_put(&base->refcount, ttm_release_base);
          ^
drivers/gpu/drm/ttm/ttm_object.c:221:26: note: ‘base’ was declared here
  struct ttm_base_object *base;

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-09-19 11:51:51 +10:00
Ben Skeggs
182b17c8dc drm/ttm: fix the tt_populated check in ttm_tt_destroy()
After a vmalloc failure in ttm_dma_tt_alloc_page_directory(),
ttm_dma_tt_init() will call ttm_tt_destroy() to cleanup, and end up
inside the driver's unpopulate() hook when populate() has never yet
been called.

On nouveau, the first issue to be hit because of this is that
dma_address[] may be a NULL pointer.  After working around this,
ttm_pool_unpopulate() may potentially hit the same issue with
the pages[] array.

It seems to make more sense to avoid calling unpopulate on already
unpopulated TTMs than to add checks to all the implementations.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Cc: stable@vger.kernel.org
Cc: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-09-19 11:48:30 +10:00
Dave Airlie
4f7d1bc973 Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
A couple of bios parser fixes (one for ancient chips, another for new ones - important in Optimus configs).  Another to make sure KMS is enabled on certain Optimus configs, and a TTM failure path fix.

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
  drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path
  drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM
  drm/nouveau/kms: enable for non-vga pci classes
  drm/nouveau/bios/init: stub opcode 0xaa
2013-09-19 11:47:23 +10:00
Linus Torvalds
3fe03debfc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "atomic_open-related fixes (Miklos' series, with EEXIST-related parts
  replaced with fix in fs/namei.c:atomic_open() instead of messing with
  the instances) + race fix in autofs + leak on failure exit in 9p"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  9p: don't forget to destroy inode cache if fscache registration fails
  atomic_open: take care of EEXIST in no-open case with O_CREAT|O_EXCL in fs/namei.c
  vfs: don't set FILE_CREATED before calling ->atomic_open()
  nfs: set FILE_CREATED
  gfs2: set FILE_CREATED
  cifs: fix filp leak in cifs_atomic_open()
  vfs: improve i_op->atomic_open() documentation
  autofs4: close the races around autofs4_notify_daemon()
2013-09-18 19:22:22 -05:00
Wolfgang Grandegger
4c2924b725 MIPS: PCI: Use pci_resource_to_user to map pci memory space properly
[ralf@linux-mips.org: This only matters to Alchemy platforms.  On other
platforms fixup_bigphys_addr is just an identidy mapping.]

Signed-off-by: Wolfgang Grandegger <wg@denx.de>
Cc: tiejun.chen <tiejun.chen@windriver.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/1868/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-19 00:48:48 +02:00
Maciej W. Rozycki
9213ad7707 MIPS: 74K/1074K: Correct erratum workaround.
Make sure 74K revision numbers are not applied to the 1074K.  Also catch
invalid usage.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5857/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-18 20:25:23 +02:00
Maciej W. Rozycki
8ff374b9c2 MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks
Replace hardcoded CP0 PRId and CP1 FPIR register access masks throughout.
The change does not touch places that use shifted or partial masks.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5838/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-18 20:25:19 +02:00
Linus Torvalds
9baa505948 Three pstore fixes related to compression:
1) Better adjustment of size of compression buffer (was too big
    for EFIVARS backend resulting in compression failure
 2) Use zlib_inflateInit2 instead of zlib_inflateInit
 3) Don't print messages about compression failure.  They will
    waste space that may better be used to log console output
    leading to the crash.
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Merge tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull pstore/compression fixes from Tony Luck:
 "Three pstore fixes related to compression:
   1) Better adjustment of size of compression buffer (was too big for
      EFIVARS backend resulting in compression failure
   2) Use zlib_inflateInit2 instead of zlib_inflateInit
   3) Don't print messages about compression failure.  They will waste
      space that may better be used to log console output leading to the
      crash"

* tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  pstore: Remove the messages related to compression failure
  pstore: Use zlib_inflateInit2 instead of zlib_inflateInit
  pstore: Adjust buffer size for compression for smaller registered buffers
2013-09-18 12:39:40 -05:00