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| * | | | | | | | | | | | | x86, apic: Don't use logical-flat mode when CPU hotplug may exceed 8 CPUsSuresh Siddha2010-02-096-34/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to fall back from logical-flat APIC mode to physical-flat mode when we have more than 8 CPUs. However, in the presence of CPU hotplug(with bios listing not enabled but possible cpus as disabled cpus in MADT), we have to consider the number of possible CPUs rather than the number of current CPUs; otherwise we may cross the 8-CPU boundary when CPUs are added later. 32bit apic code can use more cleanups (like the removal of vendor checks in 32bit default_setup_apic_routing()) and more unifications with 64bit code. Yinghai has some patches in works already. This patch addresses the boot issue that is reported in the virtualization guest context. [ hpa: incorporated function annotation feedback from Yinghai Lu ] Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1265767304.2833.19.camel@sbs-t61.sc.intel.com> Acked-by: Shaohui Zheng <shaohui.zheng@intel.com> Reviewed-by: Yinghai Lu <yinghai@kernel.org> Cc: <stable@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | | | | | | | | | | | x86-32: Make AT_VECTOR_SIZE_ARCH=2Serge E. Hallyn2010-02-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both x86-32 and x86-64 with 32-bit compat use ARCH_DLINFO_IA32, which defines two saved_auxv entries. But system.h only defines AT_VECTOR_SIZE_ARCH as 2 for CONFIG_IA32_EMULATION, not for CONFIG_X86_32. Fix that. Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> LKML-Reference: <20100209023502.GA15408@us.ibm.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * | | | | | | | | | | | | x86/agp: Fix amd64-agp module initialization regressionFUJITA Tomonori2010-02-041-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the regression introduced by commit 42590a75019a50012f25a962246498dead428433 ("x86/agp: Fix agp_amd64_init and agp_amd64_cleanup"). The commit 61684ceaad4f65d1a9832c722f7bd5e7fc714de9 fixed the above regression but it's not enough. When amd64-agp is built as a module, AGP isn't initialized, iommu is initialized, all the aperture is owned by the iommu. Reported-by: Marin Mitov <mitov@issp.bas.bg> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: Marin Mitov <mitov@issp.bas.bg> LKML-Reference: <20100204090802S.fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | | | | | | | | | x86, doc: Fix minor spelling error in arch/x86/mm/gup.cAndy Shevchenko2010-02-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix minor spelling error in comment. No code change. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> LKML-Reference: <201002022238.o12McDiF018720@imap1.linux-foundation.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | | | | | | | | | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2010-02-115-14/+20
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc32: Fix thinko in previous change. sparc: Align clone and signal stacks to 16 bytes.
| * | | | | | | | | | | | | | sparc32: Fix thinko in previous change.David S. Miller2010-02-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Should mask stack with 0xf not "0x15". Noticed by Blue Swirl <blauwirbel@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | | | | | | | | sparc: Align clone and signal stacks to 16 bytes.David S. Miller2010-02-095-14/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is mandatory for 64-bit processes, and doing it also for 32-bit processes saves a conditional in the compat case. This fixes the glibc/nptl/tst-stdio1 test case, as well as many others, on 64-bit. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | | | | | | | | | | | fs/exec.c: restrict initial stack space expansion to rlimitMichael Neuling2010-02-111-2/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When reserving stack space for a new process, make sure we're not attempting to expand the stack by more than rlimit allows. This fixes a bug caused by b6a2fea39318e43fee84fa7b0b90d68bed92d2ba ("mm: variable length argument support") and unmasked by fc63cf237078c86214abcb2ee9926d8ad289da9b ("exec: setup_arg_pages() fails to return errors"). This bug means that when limiting the stack to less the 20*PAGE_SIZE (eg. 80K on 4K pages or 'ulimit -s 79') all processes will be killed before they start. This is particularly bad with 64K pages, where a ulimit below 1280K will kill every process. To test, do: 'ulimit -s 15; ls' before and after the patch is applied. Before it's applied, 'ls' should be killed. After the patch is applied, 'ls' should no longer be killed. A stack limit of 15KB since it's small enough to trigger 20*PAGE_SIZE. Also 15KB not a multiple of PAGE_SIZE, which is a trickier case to handle correctly with this code. 4K pages should be fine to test with. [kosaki.motohiro@jp.fujitsu.com: cleanup] [akpm@linux-foundation.org: cleanup cleanup] Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Americo Wang <xiyou.wangcong@gmail.com> Cc: Anton Blanchard <anton@samba.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: James Morris <jmorris@namei.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | | | | | compat_ioctl: add compat handler for TIOCGSID ioctlAndreas Schwab2010-02-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is used by tcgetsid(3). Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | | | | | MAINTAINERS: changed LTP maintainership responsibilitiesRishikesh2010-02-111-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the LTP maintainer responsibities from 2010. Ref: http://marc.info/?l=ltp-list&m=126502242912536&w=2 Signed-off-by : Rishikesh K Rajak <risrajak@linux.vnet.ibm.com> Cc: Subrata Modak <subrata@linux.vnet.ibm.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Garrett Cooper <yanegomi@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | | | | | edac: mpc85xx fix build regression by removing unused debug codePeter Tyser2010-02-111-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some unused, unsupported debug code existed in the mpc85xx EDAC driver that resulted in a build failure when CONFIG_EDAC_DEBUG was defined: drivers/edac/mpc85xx_edac.c: In function 'mpc85xx_mc_err_probe': drivers/edac/mpc85xx_edac.c:1031: error: implicit declaration of function 'edac_mc_register_mcidev_debug' drivers/edac/mpc85xx_edac.c:1031: error: 'debug_attr' undeclared (first use in this function) drivers/edac/mpc85xx_edac.c:1031: error: (Each undeclared identifier is reported only once drivers/edac/mpc85xx_edac.c:1031: error: for each function it appears in.) Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Doug Thompson <dougthompson@xmission.com Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | | | | | edac: mpc85xx fix bad page calculationPeter Tyser2010-02-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit b4846251727a38a7f248e41308c060995371dd05 ("edac: mpc85xx add mpc83xx support") accidentally broke how a chip select's first and last page addresses are calculated. The page addresses are being shifted too far right by PAGE_SHIFT. This results in errors such as: EDAC MPC85xx MC1: Err addr: 0x003075c0 EDAC MPC85xx MC1: PFN: 0x00000307 EDAC MPC85xx MC1: PFN out of range! EDAC MC1: INTERNAL ERROR: row out of range (4 >= 4) EDAC MC1: CE - no information available: INTERNAL ERROR The vaule of PAGE_SHIFT is already being taken into consideration during the calculation of the 'start' and 'end' variables, thus it is not necessary to account for it again when setting a chip select's first and last page address. Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Doug Thompson <dougthompson@xmission.com> Cc: Ira W. Snyder <iws@ovro.caltech.edu> Cc: Kumar Gala <galak@gate.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | | | | | mmc_test: block addressed cardsJohan Kristell2010-02-111-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a bug in the multiblock write tests where the written data is read back for verifying one block at a time. The tests in mmc_test assumes that all cards are byte addressable. This will cause the multi block write tests to fail, leading the user of the mmc_test driver thinking there is something wrong with the sdhci driver they are testing. The start address for the block is calculated as: blocknum * 512. For block addressable cards the blocknum alone should be used. Signed-off-by: Johan Kristell <johan.kristell@axis.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | | | | | tpm_infineon: fix suspend/resume handler for pnp_driverMarcel Selhorst2010-02-111-22/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When suspending, tpm_infineon calls the generic suspend function of the TPM framework. However, the TPM framework does not return and the system hangs upon suspend. When sending the necessary command "TPM_SaveState" directly within the driver, suspending and resuming works fine. Signed-off-by: Marcel Selhorst <m.selhorst@sirrix.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Debora Velarde <debora@linux.vnet.ibm.com> Cc: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Cc: <stable@kernel.org> [2.6.32.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | | | | | compat_ioctl: ignore RAID_VERSION ioctlArnd Bergmann2010-02-101-0/+2
| |_|_|/ / / / / / / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | md ioctls are now handled by the md driver itself, but mdadm may call RAID_VERSION on other devices as well. Mark the command as IGNORE_IOCTL so this fails silently rather than printing an annoying message. Reported-by: "Michael S. Tsirkin" <m.s.tsirkin@gmail.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | | | | Merge branch 'i2c-for-linus' of ↵Linus Torvalds2010-02-101-6/+6
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-tiny-usb: Fix on big-endian systems
| * | | | | | | | | | | | | | i2c-tiny-usb: Fix on big-endian systemsJean Delvare2010-02-051-6/+6
| | |_|_|_|_|_|_|_|_|_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The functionality bit vector is always returned as a little-endian 32-bit number by the device, so it must be byte-swapped to the host endianness. On the other hand, the delay value is handled by the USB stack, so no byte swapping is needed on our side. This fixes bug #15105: http://bugzilla.kernel.org/show_bug.cgi?id=15105 Reported-by: Jens Richter <jens@richter-stutensee.de> Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Jens Richter <jens@richter-stutensee.de> Cc: Till Harbaum <till@harbaum.org> Cc: stable@kernel.org
* | | | | | | | | | | | | | Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds2010-02-102-3/+5
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] Fix struct _lowcore layout. [S390] qdio: prevent call trace if CHPID is offline [S390] qdio: continue polling for buffer state ERROR
| * | | | | | | | | | | | | | [S390] Fix struct _lowcore layout.Heiko Carstens2010-02-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Offsets and sizes are wrong for 32 bit. Got broken with 866ba284 "[S390] cleanup lowcore.h". Reported-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | | | | | | | | | | [S390] qdio: prevent call trace if CHPID is offlineJan Glauber2010-02-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a CHPID is offline during a device shutdown the ccw_device_halt|clear may fail and the qdio device stays in state STOPPED until the shutdown is finished. If an interrupt occurs before the device is set to INACTIVE the STOPPED state triggers a WARN_ON in the interrupt handler. Prevent this WARN_ON by catching the STOPPED state in the interrupt handler. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | | | | | | | | | | [S390] qdio: continue polling for buffer state ERRORUrsula Braun2010-02-091-1/+1
| | |_|_|_|_|_|_|_|_|_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Inbound traffic handling may hang if next buffer to check is in state ERROR, polling is stopped and the final check for further available inbound buffers disregards buffers in state ERROR. This patch includes state ERROR when checking availability of more inbound buffers. Cc: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | | | | | | | | | | | Merge branch 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2010-02-103-4/+8
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: PIT: control word is write-only kvmclock: count total_sleep_time when updating guest clock Export the symbol of getboottime and mmonotonic_to_bootbased
| * | | | | | | | | | | | | | KVM: PIT: control word is write-onlyMarcelo Tosatti2010-02-091-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PIT control word (address 0x43) is write-only, reads are undefined. Cc: stable@kernel.org Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * | | | | | | | | | | | | | kvmclock: count total_sleep_time when updating guest clockJason Wang2010-02-091-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current kvm wallclock does not consider the total_sleep_time which could cause wrong wallclock in guest after host suspend/resume. This patch solve this issue by counting total_sleep_time to get the correct host boot time. Cc: stable@kernel.org Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * | | | | | | | | | | | | | Export the symbol of getboottime and mmonotonic_to_bootbasedJason Wang2010-02-091-0/+2
| | |_|_|_|_|_|_|_|_|/ / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Export getboottime and monotonic_to_bootbased in order to let them could be used by following patch. Cc: stable@kernel.org Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* | | | | | | | | | | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6Linus Torvalds2010-02-101-6/+9
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: clean up memory allocation in at32_add_device_mci arch/avr32: Fix build failure for avr32 caused by typo
| * | | | | | | | | | | | | | avr32: clean up memory allocation in at32_add_device_mciHans-Christian Egtvedt2009-12-281-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch will check if the kzalloc for the MCI DMA struct actually returns a valid address, and also clean up properly if it fails or the function fails at a later stage. This also silences a compiler warning about using the slave variable uninitialized. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * | | | | | | | | | | | | | arch/avr32: Fix build failure for avr32 caused by typoPeter Huewe2009-12-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a build failure introduced by the patch atmel-mci: change use of dma slave interface by Nicolas Ferre by changing mci_dma_slave to the correct name of mci_dma_data This should make the avr32 tree build again. References: http://kisskb.ellerman.id.au/kisskb/buildresult/1893610/ http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commitdiff;h=2635d1ba711560d521f6218c585a3e0401f566e1 Patch against Linus' tree. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
* | | | | | | | | | | | | | | Merge branch 'merge' of ↵Linus Torvalds2010-02-101-3/+9
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix address masking bug in hpte_need_flush()
| * | | | | | | | | | | | | | | powerpc: Fix address masking bug in hpte_need_flush()David Gibson2010-02-101-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit f71dc176aa06359681c30ba6877ffccab6fba3a6 'Make hpte_need_flush() correctly mask for multiple page sizes' introduced bug, which is triggered when a kernel with a 64k base page size is run on a system whose hardware does not 64k hash PTEs. In this case, we emulate 64k pages with multiple 4k hash PTEs, however in hpte_need_flush() we incorrectly only mask the hardware page size from the address, instead of the logical page size. This causes things to go wrong when we later attempt to iterate through the hardware subpages of the logical page. This patch corrects the error. It has been tested on pSeries bare metal by Michael Neuling. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | | | | | | | | | | | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2010-02-107-14/+54
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: fix dentry hash calculation for case-insensitive mounts [CIFS] Don't cache timestamps on utimes due to coarse granularity [CIFS] Maximum username length check in session setup does not match cifs: fix length calculation for converted unicode readdir names [CIFS] Add support for TCP_NODELAY
| * | | | | | | | | | | | | | | | cifs: fix dentry hash calculation for case-insensitive mountsJeff Layton2010-02-081-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | case-insensitive mounts shouldn't use full_name_hash(). Make sure we use the parent dentry's d_hash routine when one is set. Reported-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | | | | | | | | | | | | | | [CIFS] Don't cache timestamps on utimes due to coarse granularitySteve French2010-02-081-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | force revalidate of the file when any of the timestamps are set since some filesytem types do not have finer granularity timestamps and we can not always detect which file systems round timestamps down to determine whether we can cache the mtime on setattr samba bugzilla 3775 Acked-by: Shirish Pargaonkar <sharishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | | | | | | | | | | | | | | [CIFS] Maximum username length check in session setup does not matchSteve French2010-02-061-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix length check reported by D. Binderman (see below) d binderman <dcb314@hotmail.com> wrote: > > I just ran the sourceforge tool cppcheck over the source code of the > new Linux kernel 2.6.33-rc6 > > It said > > [./cifs/sess.c:250]: (error) Buffer access out-of-bounds May turn out to be harmless, but best to be safe. Note max username length is defined to 32 due to Linux (Windows maximum is 20). Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | | | | | | | | | | | | | | cifs: fix length calculation for converted unicode readdir namesJeff Layton2010-02-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cifs_from_ucs2 returns the length of the converted name, including the length of the NULL terminator. We don't want to include the NULL terminator in the dentry name length however since that'll throw off the hash calculation for the dentry cache. I believe that this is the root cause of several problems that have cropped up recently that seem to be papered over with the "noserverino" mount option. More confirmation of that would be good, but this is clearly a bug and it fixes at least one reproducible problem that was reported. This patch fixes at least this reproducer in this kernel.org bug: http://bugzilla.kernel.org/show_bug.cgi?id=15088#c12 Reported-by: Bjorn Tore Sund <bjorn.sund@it.uib.no> Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: stable@kernel.org Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | | | | | | | | | | | | | | Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French2010-01-011-2/+2
| |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
| * | | | | | | | | | | | | | | | | [CIFS] Add support for TCP_NODELAYSteve French2010-01-014-5/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mount option sockopt=TCP_NODELAY helpful for faster networks boosting performance. Kernel bugzilla bug number 14032. Signed-off-by: Steve French <sfrench@us.ibm.com>
* | | | | | | | | | | | | | | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-02-1035-164/+197
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | |_|_|/ / / / / / / / / / / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits) drivers/net: Correct NULL test MAINTAINERS: networking drivers - Add git net-next tree net/sched: Fix module name in Kconfig cxgb3: fix GRO checksum check dst: call cond_resched() in dst_gc_task() netfilter: nf_conntrack: fix hash resizing with namespaces netfilter: xtables: compat out of scope fix netfilter: nf_conntrack: restrict runtime expect hashsize modifications netfilter: nf_conntrack: per netns nf_conntrack_cachep netfilter: nf_conntrack: fix memory corruption with multiple namespaces Bluetooth: Keep a copy of each HID device's report descriptor pktgen: Fix freezing problem igb: make certain to reassign legacy interrupt vectors after reset irda: add missing BKL in irnet_ppp ioctl irda: unbalanced lock_kernel in irnet_ppp ixgbe: Fix return of invalid txq ixgbe: Fix ixgbe_tx_map error path netxen: protect resource cleanup by rtnl lock netxen: fix tx timeout recovery for NX2031 chip Bluetooth: Enter active mode before establishing a SCO link. ...
| * | | | | | | | | | | | | | | | | Merge branch 'master' of ↵David S. Miller2010-02-086-28/+38
| |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6
| | * | | | | | | | | | | | | | | | | Bluetooth: Keep a copy of each HID device's report descriptorMichael Poole2010-02-052-26/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The report descriptor is read by user space (via the Service Discovery Protocol), so it is only available during the ioctl to connect. However, the HID probe function that needs the descriptor might not be called until a specific module is loaded. Keep a copy of the descriptor so it is available for later use. Signed-off-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | * | | | | | | | | | | | | | | | | Bluetooth: Enter active mode before establishing a SCO link.Nick Pelly2010-02-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When in sniff mode with a long interval time (1.28s) it can take 4+ seconds to establish a SCO link. Fix by requesting active mode before requesting SCO connection. This improves SCO setup time to ~500ms. Bluetooth headsets that use a long interval time, and exhibit the long SCO connection time include Motorola H790, HX1 and H17. They have a CSR 2.1 chipset. Verified this behavior and fix with host Bluetooth chipsets: BCM4329 and TI1271. 2009-10-13 14:17:46.183722 > HCI Event: Mode Change (0x14) plen 6 status 0x00 handle 1 mode 0x02 interval 2048 Mode: Sniff 2009-10-13 14:17:53.436285 < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 handle 1 voice setting 0x0060 2009-10-13 14:17:53.445593 > HCI Event: Command Status (0x0f) plen 4 Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1 2009-10-13 14:17:57.788855 > HCI Event: Synchronous Connect Complete 0x2c) plen 17 status 0x00 handle 257 bdaddr 00:1A:0E:F1:A4:7F type eSCO Air mode: CVSD Signed-off-by: Nick Pelly <npelly@google.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | * | | | | | | | | | | | | | | | | Bluetooth: Fix memory leak in Marvell BT-over-SDIO driverYoichi Yuasa2010-02-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | * | | | | | | | | | | | | | | | | Bluetooth: Do not call rfcomm_session_put() for RFCOMM UA on closed socketNick Pelly2010-02-031-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When processing a RFCOMM UA frame when the socket is closed and we were not the RFCOMM initiator would cause rfcomm_session_put() to be called twice during rfcomm_process_rx(). This would cause a kernel panic in rfcomm_session_close() then. This could be easily reproduced during disconnect with devices such as Motorola H270 that send RFCOMM UA followed quickly by L2CAP disconnect request. This trace for this looks like: 2009-09-21 17:22:37.788895 < ACL data: handle 1 flags 0x02 dlen 8 L2CAP(d): cid 0x0041 len 4 [psm 3] RFCOMM(s): DISC: cr 0 dlci 20 pf 1 ilen 0 fcs 0x7d 2009-09-21 17:22:37.906204 > HCI Event: Number of Completed Packets (0x13) plen 5 handle 1 packets 1 2009-09-21 17:22:37.933090 > ACL data: handle 1 flags 0x02 dlen 8 L2CAP(d): cid 0x0040 len 4 [psm 3] RFCOMM(s): UA: cr 0 dlci 20 pf 1 ilen 0 fcs 0x57 2009-09-21 17:22:38.636764 < ACL data: handle 1 flags 0x02 dlen 8 L2CAP(d): cid 0x0041 len 4 [psm 3] RFCOMM(s): DISC: cr 0 dlci 0 pf 1 ilen 0 fcs 0x9c 2009-09-21 17:22:38.744125 > HCI Event: Number of Completed Packets (0x13) plen 5 handle 1 packets 1 2009-09-21 17:22:38.763687 > ACL data: handle 1 flags 0x02 dlen 8 L2CAP(d): cid 0x0040 len 4 [psm 3] RFCOMM(s): UA: cr 0 dlci 0 pf 1 ilen 0 fcs 0xb6 2009-09-21 17:22:38.783554 > ACL data: handle 1 flags 0x02 dlen 12 L2CAP(s): Disconn req: dcid 0x0040 scid 0x0041 Avoid calling rfcomm_session_put() twice by skipping this call in rfcomm_recv_ua() if the socket is closed. Signed-off-by: Nick Pelly <npelly@google.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | * | | | | | | | | | | | | | | | | Bluetooth: Fix sleeping function in RFCOMM within invalid contextMarcel Holtmann2010-02-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the commit 9e726b17422bade75fba94e625cd35fd1353e682 the rfcomm_session_put() gets accidentially called from a timeout callback and results in this: BUG: sleeping function called from invalid context at net/core/sock.c:1897 in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper Pid: 0, comm: swapper Tainted: P 2.6.32 #31 Call Trace: <IRQ> [<ffffffff81036455>] __might_sleep+0xf8/0xfa [<ffffffff8138ef1d>] lock_sock_nested+0x29/0xc4 [<ffffffffa03921b3>] lock_sock+0xb/0xd [l2cap] [<ffffffffa03948e6>] l2cap_sock_shutdown+0x1c/0x76 [l2cap] [<ffffffff8106adea>] ? clockevents_program_event+0x75/0x7e [<ffffffff8106bea2>] ? tick_dev_program_event+0x37/0xa5 [<ffffffffa0394967>] l2cap_sock_release+0x27/0x67 [l2cap] [<ffffffff8138c971>] sock_release+0x1a/0x67 [<ffffffffa03d2492>] rfcomm_session_del+0x34/0x53 [rfcomm] [<ffffffffa03d24c5>] rfcomm_session_put+0x14/0x16 [rfcomm] [<ffffffffa03d28b4>] rfcomm_session_timeout+0xe/0x1a [rfcomm] [<ffffffff810554a8>] run_timer_softirq+0x1e2/0x29a [<ffffffffa03d28a6>] ? rfcomm_session_timeout+0x0/0x1a [rfcomm] [<ffffffff8104e0f6>] __do_softirq+0xfe/0x1c5 [<ffffffff8100e8ce>] ? timer_interrupt+0x1a/0x21 [<ffffffff8100cc4c>] call_softirq+0x1c/0x28 [<ffffffff8100e05b>] do_softirq+0x33/0x6b [<ffffffff8104daf6>] irq_exit+0x36/0x85 [<ffffffff8100d7a9>] do_IRQ+0xa6/0xbd [<ffffffff8100c493>] ret_from_intr+0x0/0xa <EOI> [<ffffffff812585b3>] ? acpi_idle_enter_bm+0x269/0x294 [<ffffffff812585a9>] ? acpi_idle_enter_bm+0x25f/0x294 [<ffffffff81373ddc>] ? cpuidle_idle_call+0x97/0x107 [<ffffffff8100aca0>] ? cpu_idle+0x53/0xaa [<ffffffff81429006>] ? rest_init+0x7a/0x7c [<ffffffff8177bc8c>] ? start_kernel+0x389/0x394 [<ffffffff8177b29c>] ? x86_64_start_reservations+0xac/0xb0 [<ffffffff8177b384>] ? x86_64_start_kernel+0xe4/0xeb To fix this, the rfcomm_session_put() needs to be moved out of rfcomm_session_timeout() into rfcomm_process_sessions(). In that context it is perfectly fine to sleep and disconnect the socket. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Tested-by: David John <davidjon@xenontk.org>
| | * | | | | | | | | | | | | | | | | Bluetooth: Fallback eSCO to SCO on error 0x1a (Unsupported Remote Feature)Nick Pelly2010-02-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | General Motors carkits that use LGE BT chipsets return this error code when an eSCO is attempted, despite advertising eSCO support. 2009-08-13 14:41:39.755518 < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 handle 1 voice setting 0x0060 2009-08-13 14:41:39.757563 > HCI Event: Command Status (0x0f) plen 4 Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1 2009-08-13 14:41:39.789484 > HCI Event: Synchronous Connect Complete (0x2c) plen 17 status 0x1a handle 257 bdaddr 00:1E:B2:23:5E:B3 type eSCO Error: Unsupported Remote Feature / Unsupported LMP Feature Signed-off-by: Jaikumar Ganesh <jaikumar@google.com> Signed-off-by: Nick Pelly <npelly@google.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| * | | | | | | | | | | | | | | | | | drivers/net: Correct NULL testJulia Lawall2010-02-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Test the value that was just allocated rather than the previously tested one. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ expression *x; expression e; identifier l; @@ if (x == NULL || ...) { ... when forall return ...; } ... when != goto l; when != x = e when != &x *x == NULL // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | | | | | | | | | | | | MAINTAINERS: networking drivers - Add git net-next treeJoe Perches2010-02-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During the rc period, patches that are not bugfixes should be done using the net-next tree. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | | | | | | | | | | | | net/sched: Fix module name in KconfigJan Luebbe2010-02-081-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The action modules have been prefixed with 'act_', but the Kconfig description was not changed. Signed-off-by: Jan Luebbe <jluebbe@debian.org> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | | | | | | | | | | | | cxgb3: fix GRO checksum checkDivy Le Ray2010-02-081-8/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Verify the HW checksum state for frames handed to GRO processing. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | | | | | | | | | | | | dst: call cond_resched() in dst_gc_task()Eric Dumazet2010-02-081-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kernel bugzilla #15239 On some workloads, it is quite possible to get a huge dst list to process in dst_gc_task(), and trigger soft lockup detection. Fix is to call cond_resched(), as we run in process context. Reported-by: Pawel Staszewski <pstaszewski@itcare.pl> Tested-by: Pawel Staszewski <pstaszewski@itcare.pl> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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