- 13 Apr, 2012 31 commits
-
-
françois romieu authored
commit 2a15cd2f upstream. With runtime PM, if the ethernet cable is disconnected, the device is transitioned to D3 state to conserve energy. If the system is shutdown in this state, any register accesses in rtl_shutdown are dropped on the floor. As the device was programmed by .runtime_suspend() to wake on link changes, it is thus brought back up as soon as the link recovers. Resuming every suspended device through the driver core would slow things down and it is not clear how many devices really need it now. Original report and D0 transition patch by Sameer Nanda. Patch has been changed to comply with advices by Rafael J. Wysocki and the PM folks. Reported-by:
Sameer Nanda <snanda@chromium.org> Signed-off-by:
Francois Romieu <romieu@fr.zoreil.com> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Hayes Wang <hayeswang@realtek.com> Cc: Alan Stern <stern@rowland.harvard.edu> Acked-by:
Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
Daniel Vetter authored
commit 25e341cf upstream. Somehow the BIOS manages to screw things up when copying the VBT around, because the one we scrap from the VBIOS rom actually works. Tested-by:
Markus Heinz <markus.heinz@uni-dortmund.de> Acked-by:
Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
Rodrigo Vivi <rodrigo.vivi@gmail.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=28812Signed-Off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
-
Sean Paul authored
commit 927a2f11 upstream. i915_drm_thaw was not locking the mode_config lock when calling drm_helper_resume_force_mode. When there were multiple wake sources, this caused FDI training failure on SNB which in turn corrupted the display. Signed-off-by:
Sean Paul <seanpaul@chromium.org> Reviewed-by:
-
Chris Wilson authored
commit f47166d2 upstream. Quoting the BSpec from time immemorial: PIPEACONF, bits 28:27: Frame Start Delay (Debug) Used to delay the frame start signal that is sent to the display planes. Care must be taken to insure that there are enough lines during VBLANK to support this setting. An instance of the BIOS leaving these bits set was found in the wild, where it caused our modesetting to go all squiffy and skewiff. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47271Reported-and-tested-by:
Eva Wang <evawang@linpus.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43012Reported-and-tested-by:
Carl Richell <carl@system76.com> Signed-off-by:
-
Anisse Astier authored
commit 97effadb upstream. This hardware doesn't have an LVDS, it's a desktop box. Fix incorrect LVDS detection. Signed-off-by:
Anisse Astier <anisse@astier.eu> Acked-by:
-
Alex Deucher authored
commit 402976fe upstream. On pre-R600 asics, the SpeedFanControl table is not executed as part of ASIC_Init as it is on newer asics. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=29412Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Reviewed-by:
Michel Dänzer <michel.daenzer@amd.com> Signed-off-by:
Dave Airlie <airlied@redhat.com> Signed-off-by:
-
Chris Wilson authored
commit 62fb376e upstream. mplayer -vo fbdev tries to create a screen that is twice as tall as the allocated framebuffer for "doublebuffering". By default, and all in-tree users, only sufficient memory is allocated and mapped to satisfy the smallest framebuffer and the virtual size is no larger than the actual. For these users, we should therefore reject any userspace request to create a screen that requires a buffer larger than the framebuffer originally allocated. References: https://bugs.freedesktop.org/show_bug.cgi?id=38138Signed-off-by:
-
Larry Finger authored
commit 643c61e1 upstream. In https://bugzilla.redhat.com/show_bug.cgi?id=770207, slowdowns of driver rtl8192ce are reported. One fix (commit a9b89e25) has already been applied, and it helped, but the maximum RX speed would still drop to 1 Mbps. As in the previous fix, the initial gain was determined to be the problem; however, the problem arises from a setting of the gain when scans are started. Driver rtl8192de also has the same code structure - this one is fixed as well. Reported-and-Tested-by:
Ivan Pesin <ivan.pesin@gmail.com> Signed-off-by:
Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
-
Stanislaw Gruszka authored
commit d72308bf upstream. Is possible that we will arm the tid_rx->reorder_timer after del_timer_sync() in ___ieee80211_stop_rx_ba_session(). We need to stop timer after RCU grace period finish, so move it to ieee80211_free_tid_rx(). Timer will not be armed again, as rcu_dereference(sta->ampdu_mlme.tid_rx[tid]) will return NULL. Debug object detected problem with the following warning: ODEBUG: free active (active state 0) object type: timer_list hint: sta_rx_agg_reorder_timer_expired+0x0/0xf0 [mac80211] Bug report (with all warning messages): https://bugzilla.redhat.com/show_bug.cgi?id=804007Reported-by:
"jan p. springer" <jsd@igroup.org> Signed-off-by:
Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by:
-
Geert Uytterhoeven authored
commit 6cfeba53 upstream. On multi-platform kernels, the Mac platform devices should be registered when running on Mac only. Else it may crash later. Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
-
Steven Rostedt authored
commit 12b5da34 upstream. When reading the trace file, the records of each of the per_cpu buffers are examined to find the next event to print out. At the point of looking at the event, the size of the event is recorded. But if the first event is chosen, the other events in the other CPU buffers will reset the event size that is stored in the iterator descriptor, causing the event size passed to the output functions to be incorrect. In most cases this is not a problem, but for the case of stack traces, it is. With the change to the stack tracing to record a dynamic number of back traces, the output depends on the size of the entry instead of the fixed 8 back traces. When the entry size is not correct, the back traces would not be fully printed. Note, reading from the per-cpu trace files were not affected. Reported-by:
Thomas Gleixner <tglx@linutronix.de> Tested-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
-
Wolfgang Mauerer authored
commit 01de982a upstream. 8 hex characters tell only half the tale for 64 bit CPUs, so use the appropriate length. Link: http://lkml.kernel.org/r/1332411501-8059-2-git-send-email-wolfgang.mauerer@siemens.comSigned-off-by:
Wolfgang Mauerer <wolfgang.mauerer@siemens.com> Signed-off-by:
-
Jiang Liu authored
commit f5cb92ac upstream. irq_move_masked_irq() checks the return code of chip->irq_set_affinity() only for 0, but IRQ_SET_MASK_OK_NOCOPY is also a valid return code, which is there to avoid a redundant copy of the cpumask. But in case of IRQ_SET_MASK_OK_NOCOPY we not only avoid the redundant copy, we also fail to adjust the thread affinity of an eventually threaded interrupt handler. Handle IRQ_SET_MASK_OK (==0) and IRQ_SET_MASK_OK_NOCOPY(==1) return values correctly by checking the valid return values seperately. Signed-off-by:
Jiang Liu <jiang.liu@huawei.com> Cc: Jiang Liu <liuj97@gmail.com> Cc: Keping Chen <chenkeping@huawei.com> Link: http://lkml.kernel.org/r/1333120296-13563-2-git-send-email-jiang.liu@huawei.comSigned-off-by:
-
Jan Beulich authored
commit 9aaf440f upstream. This was lacking a comma between two supposed to be separate strings. Signed-off-by:
Jan Beulich <jbeulich@suse.com> Signed-off-by:
Michal Marek <mmarek@suse.cz> Signed-off-by:
-
Julian Anastasov authored
commit 3e80acd1 upstream. commit 64b3db22 (2.6.39), "Remove use of unreliable FADT revision field" causes regression for old P4 systems because now cst_control and other fields are not reset to 0. The effect is that acpi_processor_power_init will notice cst_control != 0 and a write to CST_CNT register is performed that should not happen. As result, the system oopses after the "No _CST, giving up" message, sometimes in acpi_ns_internalize_name, sometimes in acpi_ns_get_type, usually at random places. May be during migration to CPU 1 in acpi_processor_get_throttling. Every one of these settings help to avoid this problem: - acpi=off - processor.nocst=1 - maxcpus=1 The fix is to update acpi_gbl_FADT.header.length after the original value is used to check for old revisions. https://bugzilla.kernel.org/show_bug.cgi?id=42700 https://bugzilla.redhat.com/show_bug.cgi?id=727865Signed-off-by:
Julian Anastasov <ja@ssi.bg> Acked-by:
Bob Moore <robert.moore@intel.com> Signed-off-by:
Len Brown <len.brown@intel.com> Cc: Jonathan Nieder <jrnieder@gmail.com> Cc: Josh Boyer <jwboyer@gmail.com> Signed-off-by:
-
Yinghai Lu authored
commit 89e96ada upstream. During testing pci root bus removal, found some root bus bridge is not freed. If booting with pnpacpi=off, those hostbridge could be freed without problem. It turns out that some devices reference are not released during acpi_pnp_match. that match should not hold one device ref during every calling. Add pu_device calling before returning. Signed-off-by:
Yinghai Lu <yinghai@kernel.org> Signed-off-by:
-
Andi Kleen authored
commit 2815ab92 upstream. On Intel CPUs the processor typically uses the highest frequency set by any logical CPU. When the system overheats Linux first forces the frequency to the lowest available one to lower the temperature. However this was done only per logical CPU, which means all logical CPUs in a package would need to go through this before the frequency is actually lowered. Worse this delay actually prevents real throttling, because the real throttle code only proceeds when the lowest frequency is already reached. So when a throttle event happens force the lowest frequency for all CPUs in the package where it happened. The per CPU state is now kept per package, not per logical CPU. An alternative would be to do it per cpufreq unit, but since we want to bring down the temperature of the complete chip it's better to do it for all. In principle it may even make sense to do it for all CPUs, but I kept it on the package for now. With this change the frequency is actually lowered, which in terms also allows real throttling to proceed. I also removed an unnecessary per cpu variable initialization. v2: Fix package mapping Signed-off-by:
Andi Kleen <ak@linux.intel.com> Signed-off-by:
-
Brian Norris authored
commit b54f47c8 upstream. Using UBI on m25p80 can give messages like: UBI error: io_init: bad write buffer size 0 for 1 min. I/O unit We need to initialize writebufsize; I think "page_size" is the correct "bufsize", although I'm not sure. Comments? Signed-off-by:
Brian Norris <computersforpeace@gmail.com> Signed-off-by:
Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by:
David Woodhouse <David.Woodhouse@intel.com> Signed-off-by:
-
Artem Bityutskiy authored
commit fcc44a07 upstream. The writebufsize concept was introduce by commit "0e4ca7e5 mtd: add writebufsize field to mtd_info struct" and it represents the maximum amount of data the device writes to the media at a time. This is an important parameter for UBIFS which is used during recovery and which basically defines how big a corruption caused by a power cut can be. Set writebufsize to 4 because this drivers writes at max 4 bytes at a time. Signed-off-by:
-
Artem Bityutskiy authored
commit b6043874 upstream. The writebufsize concept was introduce by commit "0e4ca7e5 mtd: add writebufsize field to mtd_info struct" and it represents the maximum amount of data the device writes to the media at a time. This is an important parameter for UBIFS which is used during recovery and which basically defines how big a corruption caused by a power cut can be. However, we forgot to set this parameter for block2mtd. Set it to PAGE_SIZE because this is actually the amount of data we write at a time. Signed-off-by:
Joern Engel <joern@lazybastard.org> Signed-off-by:
-
Artem Bityutskiy authored
commit c4cc625e upstream. The writebufsize concept was introduce by commit "0e4ca7e5 mtd: add writebufsize field to mtd_info struct" and it represents the maximum amount of data the device writes to the media at a time. This is an important parameter for UBIFS which is used during recovery and which basically defines how big a corruption caused by a power cut can be. Set writebufsize to the flash page size because it is the maximum amount of data it writes at a time. Signed-off-by:
-
Wolfram Sang authored
commit 5289966e upstream. This has been moved from .options to .bbt_options meanwhile. So, it currently checks for something totally different (NAND_OWN_BUFFERS) and decides according to that. Artem Bityutskiy: the options were moved in a40f7341 mtd: nand: consolidate redundant flash-based BBT flags Artem Bityutskiy: CCing -stable Signed-off-by:
Wolfram Sang <w.sang@pengutronix.de> Acked-by:
Huang Shijie <b32955@freescale.com> Signed-off-by:
-
Daniel Schwierzeck authored
commit bf011f2e upstream. Since commit ca97dec2 the command line parsing of MTD partitions does not work anymore. Signed-off-by:
Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Signed-off-by:
John Crispin <blogic@openwrt.org> Signed-off-by:
-
Marc Kleine-Budde authored
commit a3c1e3b7 upstream. In commit "c7975330 mtd: abstract last MTD partition parser argument" the third argument of "mtd_device_parse_register()" changed from start address of the MTD device to a pointer to a struct. The "ixp4xx_flash_probe()" function was not converted properly, causing an oops during boot. This patch fixes the problem by filling the needed information into a "struct mtd_part_parser_data" and passing it to "mtd_device_parse_register()". Signed-off-by:
Marc Kleine-Budde <mkl@blackshift.org> Signed-off-by:
-
Mark Brown authored
commit e1660585 upstream. Based on latest production information. Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
-
Kenth Eriksson authored
[ Upstream commit 464b57da ] The merge done in commit b26e478f undid bug fix in commit c3e072f8 ("net: fsl_pq_mdio: fix non tbi phy access"), with the result that non TBI (e.g. MDIO) PHYs cannot be accessed. Signed-off-by:
Kenth Eriksson <kenth.eriksson@transmode.com> Signed-off-by:
-
Rabin Vincent authored
[ Upstream commit 78fb72f7 ] Make CDC EEM recalculate the hard_mtu after adjusting the hard_header_len. Without this, usbnet adjusts the MTU down to 1494 bytes, and the host is unable to receive standard 1500-byte frames from the device. Tested with the Linux USB Ethernet gadget. Cc: Oliver Neukum <oliver@neukum.name> Signed-off-by:
Rabin Vincent <rabin@rab.in> Signed-off-by:
-
danborkmann@iogearbox.net authored
[ Upstream commit 81213b5e ] If both addresses equal, nothing needs to be done. If the device is down, then we simply copy the new address to dev->dev_addr. If the device is up, then we add another loopback device with the new address, and if that does not fail, we remove the loopback device with the old address. And only then, we update the dev->dev_addr. Signed-off-by:
Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch> Signed-off-by:
-
Lino Sanfilippo authored
[ Upstream commit 2240eb4a ] This patch corrects a bug in function sky2_open() of the Marvell Yukon 2 driver in which the settings for PHY quick link are overwritten. Signed-off-by:
Lino Sanfilippo <LinoSanfilippo@gmx.de> Acked-by:
Stephen Hemminger <shemminger@vyattta.com> Signed-off-by:
-
Matt Carlson authored
[ Upstream commit 085f1afc ] If port 0 of a 5717 serdes device powers down, it hides the phy from port 1. This patch works around the problem by keeping port 0's phy powered up. Signed-off-by:
Matt Carlson <mcarlson@broadcom.com> Signed-off-by:
Michael Chan <mchan@broadcom.com> Signed-off-by:
-
zhuangfeiran@ict.ac.cn authored
[ Upstream commit 1d24fb36 ] When K >= 0xFFFF0000, AND needs the two least significant bytes of K as its operand, but EMIT2() gives it the least significant byte of K and 0x2. EMIT() should be used here to replace EMIT2(). Signed-off-by:
Feiran Zhuang <zhuangfeiran@ict.ac.cn> Acked-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
-
- 02 Apr, 2012 9 commits
-
-
Greg Kroah-Hartman authored
-
Matthew Garrett authored
commit c9651e70 upstream. Since 3.2.12 and 3.3, some systems are failing to boot with a BUG_ON. Some other systems using the pata_jmicron driver fail to boot because no disks are detected. Passing pcie_aspm=force on the kernel command line works around it. The cause: commit 4949be16 ("PCI: ignore pre-1.1 ASPM quirking when ASPM is disabled") changed the behaviour of pcie_aspm_sanity_check() to always return 0 if aspm is disabled, in order to avoid cases where we changed ASPM state on pre-PCIe 1.1 devices. This skipped the secondary function of pcie_aspm_sanity_check which was to avoid us enabling ASPM on devices that had non-PCIe children, causing trouble later on. Move the aspm_disabled check so we continue to honour that scenario. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=42979 and http://bugs.debian.org/665420 Reported-by: Romain Francoise <romain@orebokech.com> # kernel panic Reported-by: Chris Holland <bandidoirlandes@gmail.com> # disk detection trouble Signed-off-by:
Matthew Garrett <mjg@redhat.com> Tested-by: Hatem Masmoudi <hatem.masmoudi@gmail.com> # Dell Latitude E5520 Tested-by: janek <jan0x6c@gmail.com> # pata_jmicron with JMB362/JMB363 [jn: with more symptoms in log message] Signed-off-by:
Jonathan Nieder <jrnieder@gmail.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
-
Yoshii Takashi authored
commit 49d4bcad upstream. When DMA is enabled, sh-sci transfer begins with uart_start() sci_start_tx() if (cookie_tx < 0) schedule_work() Then, starts DMA when wq scheduled, -- (A) process_one_work() work_fn_rx() cookie_tx = desc->submit_tx() And finishes when DMA transfer ends, -- (B) sci_dma_tx_complete() async_tx_ack() cookie_tx = -EINVAL (possible another schedule_work()) This A to B sequence is not reentrant, since controlling variables (for example, cookie_tx above) are not queues nor lists. So, they must be invoked as A B A B..., otherwise results in kernel crash. To ensure the sequence, sci_start_tx() seems to test if cookie_tx < 0 (represents "not used") to call schedule_work(). But cookie_tx will not be set (to a cookie, also means "used") until in the middle of work queue scheduled function work_fn_tx(). This gap between the test and set allows the breakage of the sequence under the very frequently call of uart_start(). Another gap between async_tx_ack() and another schedule_work() results in the same issue, too. This patch introduces a new condition "cookie_tx == 0" just to mark it is "busy" and assign it within spin-locked region to fill the gaps. Signed-off-by:
Takashi Yoshii <takashi.yoshii.zj@renesas.com> Reviewed-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
Paul Mundt <lethal@linux-sh.org> Signed-off-by:
-
Dan Carpenter authored
commit 6d8d1749 upstream. There is no point in passing a zero length string here and quite a few of that cache_parse() implementations will Oops if count is zero. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
J. Bruce Fields <bfields@redhat.com> Signed-off-by:
-
John Stultz authored
commit 4a649903 upstream. Richard Weinberger noticed that on some RTC hardware that doesn't support UIE mode, due to coarse granular alarms (like 1minute resolution), the current virtualized RTC support doesn't properly error out when UIE is enabled. Instead the current code queues an alarm for the next second, but it won't fire until up to a miniute later. This patch provides a generic way to flag this sort of hardware and fixes the issue on the mpc5121 where Richard noticed the problem. Reported-by:
Richard Weinberger <richard@nod.at> Tested-by:
John Stultz <john.stultz@linaro.org> Signed-off-by:
-
Chris Metcalf authored
commit 1631fcea upstream. <asm-generic/unistd.h> was set up to use sys_sendfile() for the 32-bit compat API instead of sys_sendfile64(), but in fact the right thing to do is to use sys_sendfile64() in all cases. The 32-bit sendfile64() API in glibc uses the sendfile64 syscall, so it has to be capable of doing full 64-bit operations. But the sys_sendfile() kernel implementation has a MAX_NON_LFS test in it which explicitly limits the offset to 2^32. So, we need to use the sys_sendfile64() implementation in the kernel for this case. Acked-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Chris Metcalf <cmetcalf@tilera.com> Signed-off-by:
-
Dan Carpenter authored
commit 8f0750f1 upstream. These are used as offsets into an array of GDT_ENTRY_TLS_ENTRIES members so GDT_ENTRY_TLS_ENTRIES is one past the end of the array. Signed-off-by:
H. Peter Anvin <hpa@zytor.com> Signed-off-by:
-
Alok Kataria authored
commit 57779dc2 upstream. While running the latest Linux as guest under VMware in highly over-committed situations, we have seen cases when the refined TSC algorithm fails to get a valid tsc_start value in tsc_refine_calibration_work from multiple attempts. As a result the kernel keeps on scheduling the tsc_irqwork task for later. Subsequently after several attempts when it gets a valid start value it goes through the refined calibration and either bails out or uses the new results. Given that the kernel originally read the TSC frequency from the platform, which is the best it can get, I don't think there is much value in refining it. So for systems which get the TSC frequency from the platform we should skip the refined tsc algorithm. We can use the TSC_RELIABLE cpu cap flag to detect this, right now it is set only on VMware and for Moorestown Penwell both of which have there own TSC calibration methods. Signed-off-by:
Alok N Kataria <akataria@vmware.com> Cc: John Stultz <johnstul@us.ibm.com> Cc: Dirk Brandewie <dirk.brandewie@gmail.com> Cc: Alan Cox <alan@linux.intel.com> [jstultz: Reworked to simply not schedule the refining work, rather then scheduling the work and bombing out later] Signed-off-by:
-
NeilBrown authored
commit de5b8e8e upstream. If you try to set grace_period or timeout via a module parameter to lockd, and do this on a big-endian machine where sizeof(int) != sizeof(unsigned long) it won't work. This number given will be effectively shifted right by the difference in those two sizes. So cast kp->arg properly to get correct result. Signed-off-by:
NeilBrown <neilb@suse.de> Signed-off-by:
-
