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2010-11-17r8169: fix checksum brokenShan Wei
If r8196 received packets with invalid sctp/igmp(not tcp, udp) checksum, r8196 set skb->ip_summed wit CHECKSUM_UNNECESSARY. This cause that upper protocol don't check checksum field. I am not family with r8196 driver. I try to guess the meaning of RxProtoIP and IPFail. RxProtoIP stands for received IPv4 packet that upper protocol is not tcp and udp. !(opts1 & IPFail) is true means that driver correctly to check checksum in IPv4 header. If it's right, I think we should not set ip_summed wit CHECKSUM_UNNECESSARY for my sctp packets with invalid checksum. If it's not right, please tell me. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Acked-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17rds: Integer overflow in RDS cmsg handlingDan Rosenberg
In rds_cmsg_rdma_args(), the user-provided args->nr_local value is restricted to less than UINT_MAX. This seems to need a tighter upper bound, since the calculation of total iov_size can overflow, resulting in a small sock_kmalloc() allocation. This would probably just result in walking off the heap and crashing when calling rds_rdma_pages() with a high count value. If it somehow doesn't crash here, then memory corruption could occur soon after. Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-17staging: spectra: fix build errorYong Wang
blk_queue_ordered() has been deprecated and replaced with blk_queue_flush() by Tejun. However, use of blk_queue_ordered() in spectra nand driver has not been converted yet and thus results in the following build error. drivers/staging/spectra/ffsport.c: In function SBD_setup_device: drivers/staging/spectra/ffsport.c:659: error: implicit declaration of function blk_queue_ordered drivers/staging/spectra/ffsport.c:659: error: QUEUE_ORDERED_DRAIN_FLUSH undeclared (first use in this function) drivers/staging/spectra/ffsport.c:659: error: (Each undeclared identifier is reported only once drivers/staging/spectra/ffsport.c:659: error: for each function it appears in.) Signed-off-by: Yong Wang <yong.y.wang@intel.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-17kgdb,ppc: Fix regression in evr register handlingDongdong Deng
Commit ff10b88b5a05c8f1646dd15fb9f6093c1384ff6d (kgdb,ppc: Individual register get/set for ppc) introduced a problem where memcpy was used incorrectly to read and write the evr registers with a kernel that has: CONFIG_FSL_BOOKE=y CONFIG_SPE=y CONFIG_KGDB=y This patch also fixes the following compilation problems: arch/powerpc/kernel/kgdb.c: In function 'dbg_get_reg': arch/powerpc/kernel/kgdb.c:341: error: passing argument 2 of 'memcpy' makes pointer from integer without a cast arch/powerpc/kernel/kgdb.c: In function 'dbg_set_reg': arch/powerpc/kernel/kgdb.c:366: error: passing argument 1 of 'memcpy' makes pointer from integer without a cast [jason.wessel@windriver.com: Remove void * casts and fix patch header] Reported-by: Milton Miller <miltonm@bga.com> Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> CC: linuxppc-dev@lists.ozlabs.org
2010-11-17kgdb,x86: fix regression in detach handlingJason Wessel
The fix from ba773f7c510c0b252145933926c636c439889207 (x86,kgdb: Fix hw breakpoint regression) was not entirely complete. The kgdb_remove_all_hw_break() function also needs to call the hw_break_release_slot() or else a breakpoint can get activated again after the debugger has detached. The kgdb test suite exposes the behavior in the form of either a hang or repetitive failure. The kernel config that exposes the problem contains all of the following: CONFIG_DEBUG_RODATA=y CONFIG_KGDB_TESTS=y CONFIG_KGDB_TESTS_ON_BOOT=y CONFIG_KGDB_TESTS_BOOT_STRING="V1F100" Reported-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Tested-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-11-17kdb: fix crash when KDB_BASE_CMD_MAX is exceededJovi Zhang
When the number of dyanmic kdb commands exceeds KDB_BASE_CMD_MAX, the kernel will fault. Signed-off-by: Jovi Zhang <bookjovi@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2010-11-17kdb: fix memory leak in kdb_main.cJovi Zhang
Call kfree in the error path as well as the success path in kdb_ll(). Signed-off-by: Jovi Zhang <bookjovi@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2010-11-17ASoC: davinci: fixes for multi-componentChris Paulson-Ellis
Multi-component commit f0fba2ad broke a few things which this patch should fix. Tested on the DM355 EVM. I've been as careful as I can, but it would be good if those with access to other Davinci boards could test. -- The multi-component commit put the initialisation of snd_soc_dai.[capture|playback]_dma_data into snd_soc_dai_ops.hw_params of the McBSP, McASP & VCIF drivers (davinci-i2s.c, davinci-mcasp.c & davinci-vcif.c). The initialisation had to be moved from the probe function in these drivers because davinci_*_dai changed from snd_soc_dai to snd_soc_dai_driver. Unfortunately, the DMA params pointer is needed by davinci_pcm_open (in davinci-pcm.c) before hw_params is called. I have moved the initialisation to a new snd_soc_dai_ops.startup function in each of these drivers. This fix indicates that all platforms that use davinci-pcm must have been broken and need to test with this fix. -- The multi-component commit also changed the McBSP driver name from "davinci-asp" to "davinci-i2s" in davinci-i2s.c without updating the board level references to the driver name. This change is understandable, as there is a similarly named "davinci-mcasp" driver in davinci-mcasp.c. There is probably no 'correct' name for this driver. The DM6446 datasheet calls it the "ASP" and describes it as a "specialised McBSP". The DM355 datasheet calls it the "ASP" and describes it as a "specialised ASP". The DM365 datasheet calls it the "McBSP". Rather than fix this problem by reverting to "davinci-asp", I've elected to avoid future confusion with the "davinci-mcasp" driver by changing it to "davinci-mcbsp", which is also consistent with the names of the functions in the driver. There are other fixes required, so it was never going to be as simple as a revert anyway. -- The DM365 only has one McBSP port (of the McBSP platforms, only the DM355 has 2 ports), so I've changed the the id of the platform_device from 0 to -1. -- In davinci-evm.c, the DM6446 EVM can no longer share a snd_soc_dai_link structure with the DM355 EVM as they use different cpu DAI names (the DM355 has 2 ports and the EVM uses the second port, but the DM6446 only has 1 port). This also means that the 2 boards need different snd_soc_card structures. -- The codec_name entries in davinci-evm.c didn't match the i2c ids in the board files. I have only checked and fixed the details of the names used for the McBSP based platforms. Someone with a McASP based platform (eg DA8xx) should check the others. Signed-off-by: Chris Paulson-Ellis <chris@edesix.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-11-17ASoC: Fix register cache setup WM8994 for multi-componentMark Brown
During the multi-component conversion the WM8994 register cache init got lost. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-11-17[libata] remove SCSI host lock and serial number usage from ata_scsi_queuecmdJeff Garzik
cmd->serial_number is never tested in any path we reach; therefore we may remove the call to scsi_cmd_get_serial() inside DEF_SCSI_QCMD, the SCSI host_lock acquisition surrounding it, and our own SCSI host_lock unlock+relock cycle. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-11-17staging/stradis: mark as "depends on BKL"Arnd Bergmann
The stradis driver is on its way out, but it should still be marked correctly as depending on the big kernel lock. It could easily be changed to not require it if someone decides to revive the driver and port it to v4l2 in the process. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reported-by: Sedat Dilek <sedat.dilek@googlemail.com> Cc: Nathan Laredo <laredo@gnu.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-17BKL: remove references to lock_kernel from commentsArnd Bergmann
Lock_kernel is gone from the code, so the comments should be updated, too. nfsd now uses lock_flocks instead of lock_kernel to protect against posix file locks. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: J. Bruce Fields <bfields@redhat.com> Cc: linux-nfs@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-17BKL: remove extraneous #include <smp_lock.h>Arnd Bergmann
The big kernel lock has been removed from all these files at some point, leaving only the #include. Remove this too as a cleanup. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-17cciss: fix build for PROC_FS disabledJens Axboe
The recent patch to fix the removal of a non-existing proc directory introduced this build problem for !CONFIG_PROC_FS: drivers/block/cciss.c:4929: error: 'proc_cciss' undeclared (first use in this function) Fix it by moving proc_cciss outside of the CONFIG_PROC_FS scope. Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-11-17sh: fix vsyscall compilation due to .eh_frame issueGiuseppe CAVALLARO
This patch fixes the following error obtained when compile the Kernel with the VSYSCALL support enabled: SYSCALL arch/sh/kernel/vsyscall/vsyscall-trapa.so sh4-linux/bin/ld: error in arch/sh/kernel/vsyscall/vsyscall-trapa.o(.eh_frame); no .eh_frame_hdr table will be created. AS arch/sh/kernel/vsyscall/vsyscall-syscall.o Disassembling the vsyscall-trapa.o code, with this fix applied, we get the __kernel_vsyscall symbol defined; otherwise it was missing. Disassembly of section .text: 00000000 <__kernel_vsyscall>: 0: 10 00 .word 0x0010 2: 00 00 .word 0x0000 [snip] 0000040 <__kernel_sigreturn>: 40: 05 93 mov.w 4e <__kernel_sigreturn+0xe>,r3 ! 77 42: 10 c3 trapa #16 [snip] 00000060 <__kernel_rt_sigreturn>: 60: 05 93 mov.w 6e <__kernel_rt_sigreturn+0xe>,r3 ! ad 62: 10 c3 trapa #16 [snip] Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-17sh: avoid to flush all cache in sys_cacheflushGiuseppe CAVALLARO
Calling sys_cacheflush with ICACHE we can direclty flush the icache without invoking the flush_cache_all function. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-17lxfb: Program panel v/h sync output polarity correctlyDaniel Drake
Commit b5c26f97ec4a17c65 introduced some breakage for the OLPC XO-1 laptop, differences in the output video signal after the patch caused some problems with the XO's display controller chip. Reviewing of that commit against the AMD Geode LX Data Book, it seems that these bits were being set inversely. In both cases, active high output is denoted by a value of 0. See section 6.8.3.44 of the databook from February 2009 (Publication ID: 33234H) Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-17fbcmap: integer overflow bugDan Carpenter
There is an integer overflow in fb_set_user_cmap() because cmap->len * 2 can wrap. It's basically harmless. Your terminal will be messed up until you type reset. This patch does three things to fix the bug. First, it checks the return value of fb_copy_cmap() in fb_alloc_cmap(). That is enough to fix address the overflow. Second it checks for the integer overflow in fb_set_user_cmap(). Lastly I wanted to cap "cmap->len" in fb_set_user_cmap() much lower because it gets used to determine the size of allocation. Unfortunately no one knows what the limit should be. Instead what this patch does is makes the allocation happen with GFP_KERNEL instead of GFP_ATOMIC and lets the kmalloc() decide what values of cmap->len are reasonable. To do this, the patch introduces a function called fb_alloc_cmap_gfp() which is like fb_alloc_cmap() except that it takes a GFP flag. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-17fbcmap: cleanup white space in fb_alloc_cmap()Dan Carpenter
checkpatch.pl and Andrew Morton both complained about the indenting in fb_alloc_cmap() Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-17MAINTAINERS: Add fbdev patchwork entry, tidy up file patterns.Paul Mundt
Now that the patchwork queue is up, add it in. While we're at it, fix up the file patterns, too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-16kernel: make /proc/kallsyms mode 400 to reduce ease of attackingMarcus Meissner
Making /proc/kallsyms readable only for root by default makes it slightly harder for attackers to write generic kernel exploits by removing one source of knowledge where things are in the kernel. This is the second submit, discussion happened on this on first submit and mostly concerned that this is just one hole of the sieve ... but one of the bigger ones. Changing the permissions of at least System.map and vmlinux is also required to fix the same set, but a packaging issue. Target of this starter patch and follow ups is removing any kind of kernel space address information leak from the kernel. [ Side note: the default of root-only reading is the "safe" value, and it's easy enough to then override at any time after boot. The /proc filesystem allows root to change the permissions with a regular chmod, so you can "revert" this at run-time by simply doing chmod og+r /proc/kallsyms as root if you really want regular users to see the kernel symbols. It does help some tools like "perf" figure them out without any setup, so it may well make sense in some situations. - Linus ] Signed-off-by: Marcus Meissner <meissner@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Eugene Teo <eugeneteo@kernel.org> Reviewed-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-16Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: nfs: Ignore kmemleak false positive in nfs_readdir_make_qstr SUNRPC: Simplify rpc_alloc_iostats by removing pointless local variable nfs: trivial: remove unused nfs_wait_event macro NFS: readdir shouldn't read beyond the reply returned by the server NFS: Fix a couple of regressions in readdir. Revert "NFSv4: Fall back to ordinary lookup if nfs4_atomic_open() returns EISDIR" Regression: fix mounting NFS when NFSv3 support is not compiled NLM: Fix a regression in lockd
2010-11-16Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Fix cross-sched-class wakeup preemption sched: Fix runnable condition for stoptask sched: Use group weight, idle cpu metrics to fix imbalances during idle
2010-11-16Merge branch 'pm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM / PM QoS: Fix reversed min and max PM / OPP: Hide OPP configuration when SoCs do not provide an implementation PM: Allow devices to be removed during late suspend and early resume
2010-11-17firewire: net: throttle TX queue before running out of tlabelsStefan Richter
This prevents firewire-net from submitting write requests in fast succession until failure due to all 64 transaction labels were used up for unfinished split transactions. The netif_stop/wake_queue API is used for this purpose. Without this stop/wake mechanism, datagrams were simply lost whenever the tlabel pool was exhausted. Plus, tlabel exhaustion by firewire-net also prevented other unrelated outbound transactions to be initiated. The chosen queue depth was checked by me to hit the maximum possible throughput with an OS X peer whose receive DMA is good enough to never reject requests due to busy inbound request FIFO. Current Linux peers show a mixed picture of -5%...+15% change in bandwidth; their current bottleneck are RCODE_BUSY situations (fewer or more, depending on TX queue depth) due to too small AR buffer in firewire-ohci. Maxim Levitsky tested this change with similar watermarks with a Linux peer and some pending firewire-ohci improvements that address the RCODE_BUSY problem and confirmed that these TX queue limits are good. Note: This removes some netif_wake_queue from reception code paths. They were apparently copy&paste artefacts from a nonsensical netif_wake_queue use in the older eth1394 driver. This belongs only into the transmit path. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
2010-11-17firewire: net: replace lists by countersStefan Richter
The current transmit code does not at all make use of - fwnet_device.packet_list and only very limited use of - fwnet_device.broadcasted_list, - fwnet_device.queued_packets. Their current function is to track whether the TX soft-IRQ finished dealing with an skb when the AT-req tasklet takes over, and to discard pending tx datagrams (if there are any) when the local node is removed. The latter does actually contain a race condition bug with TX soft-IRQ and AT-req tasklet. Instead of these lists and the corresponding link in fwnet_packet_task, - a flag in fwnet_packet_task to track whether fwnet_tx is done, - a counter of queued datagrams in fwnet_device do the job as well. The above mentioned theoretic race condition is resolved by letting fwnet_remove sleep until all datagrams were flushed. It may sleep almost arbitrarily long since fwnet_remove is executed in the context of a multithreaded (concurrency managed) workqueue. The type of max_payload is changed to u16 here to avoid waste in struct fwnet_packet_task. This value cannot exceed 4096 per IEEE 1394:2008 table 16-18 (or 32678 per specification of packet headers, if there is ever going to be something else than beta mode). Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2010-11-17firewire: net: fix memory leaksStefan Richter
a) fwnet_transmit_packet_done used to poison ptask->pt_link by list_del. If fwnet_send_packet checked later whether it was responsible to clean up (in the border case that the TX soft IRQ was outpaced by the AT-req tasklet on another CPU), it missed this because ptask->pt_link was no longer shown as empty. b) If fwnet_write_complete got an rcode other than RCODE_COMPLETE, we missed to free the skb and ptask entirely. Also, count stats.tx_dropped and stats.tx_errors when rcode != 0. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2010-11-17firewire: net: count stats.tx_packets and stats.tx_bytesStefan Richter
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2010-11-16xen/events: use locked set|clear_bit() for cpu_evtchn_maskJeremy Fitzhardinge
The per-cpu event channel masks can be updated unlocked from multiple CPUs, so use the locked variant. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2010-11-16xen/evtchn: clear secondary CPUs' cpu_evtchn_mask[] after restoreJan Beulich
To bind all event channels to CPU#0, it is not sufficient to set all of its cpu_evtchn_mask[] bits; all other CPUs also need to get their bits cleared. Otherwise, evtchn_do_upcall() will start handling interrupts on CPUs they're not intended to run on, which can be particularly bad for per-CPU ones. [ linux-2.6.18-xen.hg 7de7453dee36 ] Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
2010-11-16Merge branch 'futexes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: Address compiler warnings in exit_robust_list
2010-11-16USB: EHCI: fix obscure race in ehci_endpoint_disableAlan Stern
This patch (as1435) fixes an obscure and unlikely race in ehci-hcd. When an async URB is unlinked, the corresponding QH is removed from the async list. If the QH's endpoint is then disabled while the URB is being given back, ehci_endpoint_disable() won't find the QH on the async list, causing it to believe that the QH has been lost. This will lead to a memory leak at best and quite possibly to an oops. The solution is to trust usbcore not to lose track of endpoints. If the QH isn't on the async list then it doesn't need to be taken off the list, but the driver should still wait for the QH to become IDLE before disabling it. In theory this fixes Bugzilla #20182. In fact the race is so rare that it's not possible to tell whether the bug is still present. However, adding delays and making other changes to force the race seems to show that the patch works. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de> CC: David Brownell <david-b@pacbell.net> CC: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16USB: gadget: AT91: fix typo in atmel_usba_udc driverJosh Wu
compile fix for bug introduced by 969affff547027) Signed-off-by: Josh Wu <josh.wu@atmel.com> Cc: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16USB: isp1362-hcd - fix section mismatch warningAxel Lin
Fix section mismatch warning by using "__devinit" annotation for isp1362_probe. WARNING: drivers/usb/host/isp1362-hcd.o(.data+0x0): Section mismatch in reference from the variable isp1362_driver to the function .init.text:isp1362_probe() The variable isp1362_driver references the function __init isp1362_probe() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16USB: EHCI: AMD periodic frame list table quirkAndiry Xu
On AMD SB700/SB800/Hudson-2/3 platforms, USB EHCI controller may read/write to memory space not allocated to USB controller if there is longer than normal latency on DMA read encountered. In this condition the exposure will be encountered only if the driver has following format of Periodic Frame List link pointer structure: For any idle periodic schedule, the Frame List link pointers that have the T-bit set to 1 intending to terminate the use of frame list link pointer as a physical memory pointer. Idle periodic schedule Frame List Link pointer shoule be in the following format to avoid the issue: Frame list link pointer should be always contains a valid pointer to a inactive QHead with T-bit set to 0. Signed-off-by: Andiry Xu <andiry.xu@amd.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16SCSI host lock push-downJeff Garzik
Move the mid-layer's ->queuecommand() invocation from being locked with the host lock to being unlocked to facilitate speeding up the critical path for drivers who don't need this lock taken anyway. The patch below presents a simple SCSI host lock push-down as an equivalent transformation. No locking or other behavior should change with this patch. All existing bugs and locking orders are preserved. Additionally, add one parameter to queuecommand, struct Scsi_Host * and remove one parameter from queuecommand, void (*done)(struct scsi_cmnd *) Scsi_Host* is a convenient pointer that most host drivers need anyway, and 'done' is redundant to struct scsi_cmnd->scsi_done. Minimal code disturbance was attempted with this change. Most drivers needed only two one-line modifications for their host lock push-down. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-16serial8250: Mark console as CON_ANYTIMEPeter Zijlstra
While trying to debug a cpu-hotplug issue I noticed printk() stopped working once the cpu got marked offline, since the 8250 serial console doesn't have any per-cpu resources the CON_ANYTIME bit is the safe and documented way to make it work again. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16cfg80211: fix extension channel checks to initiate communicationLuis R. Rodriguez
When operating in a mode that initiates communication and using HT40 we should fail if we cannot use both primary and secondary channels to initiate communication. Our current ht40 allowmap only covers STA mode of operation, for beaconing modes we need a check on the fly as the mode of operation is dynamic and there other flags other than disable which we should read to check if we can initiate communication. Do not allow for initiating communication if our secondary HT40 channel has is either disabled, has a passive scan flag, a no-ibss flag or is a radar channel. Userspace now has similar checks but this is also needed in-kernel. Reported-by: Jouni Malinen <jouni.malinen@atheros.com> Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-16ath9k_hw: Set proper eeprom offset for AR9287 HTC devicesRajkumar Manoharan
AR9287 based PCI & USB devices are differed in eeprom start offset. So set proper the offset for HTC devices to read nvram correctly. Cc: stable@kernel.org Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-16ath9k_htc: Add new devices into AR7010Rajkumar Manoharan
Treat new PIDs (0xA704, 0x1200) as AR7010 devices. Cc: stable@kernel.org Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-16ath9k_htc: Update usb device ID listRajkumar Manoharan
Added new VID/PIDs into supported devices list Cc: stable@kernel.org Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-16ath9k: Remove pm_qos request after hw unregister.Vivek Natarajan
Update pm_qos before removing it in deinit_device to prevent this warning: pm_qos_update_request() called for unknown object. Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-16Staging: intel_sst: fix memory leakDan Carpenter
The original code set "str_info->decode_ibuf" to NULL so the kfree() is no-op. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Harsha Priya <priya.harsha@intel.com> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16Staging: rtl8712: signedness bug in initDan Carpenter
PollingCnt is 20 and that means we loop 20 times and then run the timeout code. After the end of the loop PollingCnt should be -1 but because it's an unsigned char, it's actually 255 and the timeout code never runs. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16staging: rtl8187se: Change panic to warn when RF switch turned offLarry Finger
This driver issues a kernel panic over conditions that do not justify such drastic action. Change these to log entries with a stack dump. This patch fixes the system crash reported in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/674285. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Reported-and-Tested-by: Robie Basik <rb-oss-3@justgohome.co.uk> Cc: Stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16staging: comedi: fix memory leakNicolas Kaiser
Instead of freeing outBuffer, inBuffer gets freed twice. Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16Staging: quickstart: free after input_unregister_device()Dan Carpenter
input_unregister_device() releases "quickstart_input" so the input_free_device() is a double free. Also I noticed that there is a memory leak if the call to input_register_device() fails. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16Staging: speakup: free after input_unregister_device()Dan Carpenter
input_unregister_device() frees the device so the call to input_free_device() is a double free. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-16xfrm: update flowi saddr in icmp_send if unsetUlrich Weber
otherwise xfrm_lookup will fail to find correct policy Signed-off-by: Ulrich Weber <uweber@astaro.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-16Staging: line6: fix up some sysfs attribute permissionsGreg Kroah-Hartman
They should not be writable by any user Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Markus Grabner <grabner@icg.tugraz.at> Cc: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>