aboutsummaryrefslogtreecommitdiff
AgeCommit message (Collapse)AuthorFilesLines
2011-04-06savagefb: Replace magic register address with defineTormod Volden1-1/+1
MM_SERIAL1 was already defined, but not used. Signed-off-by: Tormod Volden <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-04-06drivers/video/bfin-lq035q1-fb.c: introduce missing kfreeJulia Lawall1-1/+3
Error handling code following a kmalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <[email protected]> Acked-by: Mike Frysinger <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-04-06video: s3c-fb: fix checkpatch errors and warningJingoo Han1-3/+5
This patch fixes the checkpatch errors listed below: ERROR: space required before the open parenthesis '(' ERROR: need consistent spacing around '+' (ctx:WxV) ERROR: space prohibited before that close parenthesis ')' Also, following warning is fixed by adding 'platid' variable which can reduce number of lines exceeding 80 characters. WARNING: line over 80 characters Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-04-06libceph: fix linger request requeueingSage Weil1-3/+9
Fix the request transition from linger -> normal request. The key is to preserve r_osd and requeue on the same OSD. Reregister as a normal request, add the request to the proper queues, then unregister the linger. Fix the unregister helper to avoid clearing r_osd (and also simplify the parallel check in __unregister_request()). Reported-by: Henry Chang <[email protected]> Signed-off-by: Sage Weil <[email protected]>
2011-04-06HID: Add support for CH Pro ThrottleJiri Kosina2-0/+2
CH Pro Throttle needs NOGET the same way as other products from the same vendor require. Reported-by: Unavowed <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
2011-04-06HID: hid-magicmouse: Increase evdev buffer sizeChase Douglas1-0/+2
The evdev buffer isn't big enough when you get many fingers on the device. Bump up the buffer to a reasonable size, matching what other multitouch devices use. Without this change, events may be discarded in the evdev buffer before they are read. Reported-by: Simon Budig <[email protected]> Cc: Henrik Rydberg <[email protected]> Cc: Jiri Kosina <[email protected]> Cc: [email protected] Signed-off-by: Chase Douglas <[email protected]> Acked-by: Henrik Rydberg <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
2011-04-06xen: Allow PV-OPS kernel to detect whether XSAVE is supportedShan Haitao1-1/+10
Xen fails to mask XSAVE from the cpuid feature, despite not historically supporting guest use of XSAVE. However, now that XSAVE support has been added to Xen, we need to reliably detect its presence. The most reliable way to do this is to look at the OSXSAVE feature in cpuid which is set iff the OS (Xen, in this case), has set CR4.OSXSAVE. [ Cleaned up conditional a bit. - Jeremy ] Signed-off-by: Shan Haitao <[email protected]> Signed-off-by: Jeremy Fitzhardinge <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2011-04-06xen: just completely disable XSAVEJeremy Fitzhardinge1-17/+1
Some (old) versions of Xen just kill the domain if it tries to set any unknown bits in CR4, so we can't reliably probe for OSXSAVE in CR4. Since Xen doesn't support XSAVE for guests at the moment, and no such support is being worked on, there's no downside in just unconditionally masking XSAVE support. Signed-off-by: Jeremy Fitzhardinge <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2011-04-06Merge branch 'perf/urgent' of ↵Ingo Molnar2-65/+113
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 into perf/urgent
2011-04-06KVM: move and fix substitue search for missing CPUID entriesAndre Przywara1-6/+25
If KVM cannot find an exact match for a requested CPUID leaf, the code will try to find the closest match instead of simply confessing it's failure. The implementation was meant to satisfy the CPUID specification, but did not properly check for extended and standard leaves and also didn't account for the index subleaf. Beside that this rule only applies to CPUID intercepts, which is not the only user of the kvm_find_cpuid_entry() function. So fix this algorithm and call it from kvm_emulate_cpuid(). This fixes a crash of newer Linux kernels as KVM guests on AMD Bulldozer CPUs, where bogus values were returned in response to a CPUID intercept. Signed-off-by: Andre Przywara <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2011-04-06KVM: fix XSAVE bit scanningAndre Przywara1-3/+3
When KVM scans the 0xD CPUID leaf for propagating the XSAVE save area leaves, it assumes that the leaves are contigious and stops at the first zero one. On AMD hardware there is a gap, though, as LWP uses leaf 62 to announce it's state save area. So lets iterate through all 64 possible leaves and simply skip zero ones to also cover later features. Signed-off-by: Andre Przywara <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2011-04-06KVM: Enable async page fault processingGleb Natapov1-2/+21
If asynchronous hva_to_pfn() is requested call GUP with FOLL_NOWAIT to avoid sleeping on IO. Check for hwpoison is done at the same time, otherwise check_user_page_hwpoison() will call GUP again and will put vcpu to sleep. Signed-off-by: Gleb Natapov <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2011-04-06KVM: fix crash on irqfd deassignMichael S. Tsirkin1-1/+1
irqfd in kvm used flush_work incorrectly: it assumed that work scheduled previously can't run after flush_work, but since kvm uses a non-reentrant workqueue (by means of schedule_work) we need flush_work_sync to get that guarantee. Signed-off-by: Michael S. Tsirkin <[email protected]> Reported-by: Jean-Philippe Menil <[email protected]> Tested-by: Jean-Philippe Menil <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2011-04-06ALSA: usb-audio: define another USB ID for a buggy USB MIDI cableTarek Soliman1-0/+1
There are many USB MIDI cables out there that have buggy firmware that reports it can do more than 4 bytes in a packet when they can only properly handle 4 This patch adds the ID of yet another one of those cables Signed-off-by: Tarek Soliman <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2011-04-05Linux 2.6.39-rc2Linus Torvalds1-1/+1
2011-04-05ext4: init timer earlier to avoid a kernel panic in __save_error_infoTao Ma1-3/+5
During mount, when we fail to open journal inode or root inode, the __save_error_info will mod_timer. But actually s_err_report isn't initialized yet and the kernel oops. The detailed information can be found https://bugzilla.kernel.org/show_bug.cgi?id=32082. The best way is to check whether the timer s_err_report is initialized or not. But it seems that in include/linux/timer.h, we can't find a good function to check the status of this timer, so this patch just move the initializtion of s_err_report earlier so that we can avoid the kernel panic. The corresponding del_timer is also added in the error path. Reported-by: Sami Liedes <[email protected]> Signed-off-by: Tao Ma <[email protected]> Signed-off-by: "Theodore Ts'o" <[email protected]>
2011-04-05jbd2: fix potential memory leak on transaction commitZhang Huan1-1/+3
There is potential memory leak of journal head in function jbd2_journal_commit_transaction. The problem is that JBD2 will not reclaim the journal head of commit record if error occurs or journal is abotred. I use the following script to reproduce this issue, on a RHEL6 system. I found it very easy to reproduce with async commit enabled. mount /dev/sdb /mnt -o journal_checksum,journal_async_commit touch /mnt/xxx echo offline > /sys/block/sdb/device/state sync umount /mnt rmmod ext4 rmmod jbd2 Removal of the jbd2 module will make slab complaining that "cache `jbd2_journal_head': can't free all objects". Signed-off-by: Zhang Huan <[email protected]> Signed-off-by: "Theodore Ts'o" <[email protected]>
2011-04-05Merge branch 'for-linus' of ↵Linus Torvalds14-91/+148
git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-2.6-block * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-2.6-block: ide: always ensure that blk_delay_queue() is called if we have pending IO block: fix request sorting at unplug dm: improve block integrity support fs: export empty_aops ide: ide_requeue_and_plug() reinstate "always plug" behaviour blk-throttle: don't call xchg on bool ufs: remove unessecary blk_flush_plug block: make the flush insertion use the tail of the dispatch list block: get rid of elv_insert() interface block: dump request state on seeing a corrupted request completion
2011-04-05inotify: fix double free/corruption of stuct userEric Paris2-26/+14
On an error path in inotify_init1 a normal user can trigger a double free of struct user. This is a regression introduced by a2ae4cc9a16e ("inotify: stop kernel memory leak on file creation failure"). We fix this by making sure that if a group exists the user reference is dropped when the group is cleaned up. We should not explictly drop the reference on error and also drop the reference when the group is cleaned up. The new lifetime rules are that an inotify group lives from inotify_new_group to the last fsnotify_put_group. Since the struct user and inotify_devs are directly tied to this lifetime they are only changed/updated in those two locations. We get rid of all special casing of struct user or user->inotify_devs. Signed-off-by: Eric Paris <[email protected]> Cc: [email protected] (2.6.37 and up) Signed-off-by: Linus Torvalds <[email protected]>
2011-04-05ide: always ensure that blk_delay_queue() is called if we have pending IOJens Axboe1-21/+21
Just because we are not requeuing a request does not mean that some aren't pending. So always issue a blk_delay_queue() if either we are requeueing OR there's pending IO. This fixes a boot problem for some IDE boxes. Signed-off-by: Jens Axboe <[email protected]>
2011-04-05block: fix request sorting at unplugKonstantin Khlebnikov1-1/+1
Comparison function for list_sort() must be anticommutative, otherwise it is not sorting in ordinary meaning. But fortunately list_sort() always check ((*cmp)(priv, a, b) <= 0) it not distinguish negative and zero, so comparison function can implement only less-or-equal instead of full three-way comparison. Signed-off-by: Konstantin Khlebnikov <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2011-04-05dm: improve block integrity supportMike Snitzer3-35/+93
The current block integrity (DIF/DIX) support in DM is verifying that all devices' integrity profiles match during DM device resume (which is past the point of no return). To some degree that is unavoidable (stacked DM devices force this late checking). But for most DM devices (which aren't stacking on other DM devices) the ideal time to verify all integrity profiles match is during table load. Introduce the notion of an "initialized" integrity profile: a profile that was blk_integrity_register()'d with a non-NULL 'blk_integrity' template. Add blk_integrity_is_initialized() to allow checking if a profile was initialized. Update DM integrity support to: - check all devices with _initialized_ integrity profiles match during table load; uninitialized profiles (e.g. for underlying DM device(s) of a stacked DM device) are ignored. - disallow a table load that would result in an integrity profile that conflicts with a DM device's existing (in-use) integrity profile - avoid clearing an existing integrity profile - validate all integrity profiles match during resume; but if they don't all we can do is report the mismatch (during resume we're past the point of no return) Signed-off-by: Mike Snitzer <[email protected]> Cc: Martin K. Petersen <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2011-04-05fs: export empty_aopsJens Axboe4-5/+12
With the ->sync_page() hook gone, we have a few users that add their own static address_space_operations without any functions defined. fs/inode.c already has an empty_aops that it uses for init purposes. Lets export that and use it in the places where an otherwise empty aops was defined. Signed-off-by: Jens Axboe <[email protected]>
2011-04-05ide: ide_requeue_and_plug() reinstate "always plug" behaviourJens Axboe1-2/+1
We see stalls if we don't always ensure that the queue gets run again. Even if rq == NULL, we could have other pending requests in the queue. Signed-off-by: Jens Axboe <[email protected]>
2011-04-05blk-throttle: don't call xchg on boolAndreas Schwab1-2/+2
xchg does not work portably with smaller than 32bit types. Signed-off-by: Andreas Schwab <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2011-04-05ufs: remove unessecary blk_flush_plugChristoph Hellwig1-1/+0
We already flush the per-process plugging list when context switching, so a blk_flush_plug call just before a yield() is not needed. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2011-04-05block: make the flush insertion use the tail of the dispatch listJens Axboe1-2/+2
It's not a preempt type request, in fact we have to insert it behind requests that do specify INSERT_FRONT. Signed-off-by: Jens Axboe <[email protected]>
2011-04-05block: get rid of elv_insert() interfaceJens Axboe3-23/+17
Merge it with __elv_add_request(), it's pretty pointless to have a function with only two callers. The main interface is elv_add_request()/__elv_add_request(). Signed-off-by: Jens Axboe <[email protected]>
2011-04-05block: dump request state on seeing a corrupted request completionJens Axboe1-1/+1
Currently we just dump a non-informative 'request botched' message. Lets actually try and print something sane to help debug issues around this. Signed-off-by: Jens Axboe <[email protected]>
2011-04-05Merge branch 'master' of ↵David S. Miller18-115/+151
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2011-04-05Merge branch 'drm-intel-fixes' of ↵Linus Torvalds2-44/+0
git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6 * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6: drm/i915/lvds: Remove 0xa0 DDC probe for LVDS drm/i915/crt: Remove 0xa0 probe for VGA
2011-04-05staging: IIO: IMU: ADIS16400: Avoid using printk facility directlyMichael Hennerich1-2/+4
Signed-off-by: Michael Hennerich <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-04-05staging: IIO: IMU: ADIS16400: Fix product ID check, skip embedded revision ↵Michael Hennerich1-1/+1
number Signed-off-by: Michael Hennerich <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-04-05staging: IIO: IMU: ADIS16400: Make sure only enabled scan_elements are ↵Michael Hennerich1-3/+7
pushed into the ring Signed-off-by: Michael Hennerich <[email protected]> Acked-by: Jonathan Cameron <[email protected]> CC: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-04-05staging: IIO: IMU: ADIS16400: Fix addresses of GYRO and ACCEL calibration offsetMichael Hennerich1-4/+4
Signed-off-by: Michael Hennerich <[email protected]> Acked-by: Jonathan Cameron <[email protected]> CC: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-04-05staging: IIO: IMU: ADIS16400: Add delay after self testMichael Hennerich2-2/+3
Add delay after self test to satisfy timing requirements. Increase start-up delay. Signed-off-by: Michael Hennerich <[email protected]> Acked-by: Jonathan Cameron <[email protected]> CC: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-04-05staging: IIO: IMU: ADIS16400: Fix up SPI messages cs_change behaviorMichael Hennerich2-4/+0
cs_change must not be set in the last transfer of a spi message Signed-off-by: Michael Hennerich <[email protected]> Acked-by: Jonathan Cameron <[email protected]> CC: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-04-05Merge branch 'for-linus' of ↵Linus Torvalds9-109/+221
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: rpckbd - fix a leak of the IRQ during init failure Input: wacom - add support for Lenovo tablet ID (0xE6) Input: i8042 - downgrade selftest error message to dbg() Input: synaptics - fix crash in synaptics_module_init() Input: spear-keyboard - fix inverted condition in interrupt handler Input: uinput - allow for 0/0 min/max on absolute axes. Input: sparse-keymap - report KEY_UNKNOWN for unknown scan codes Input: sparse-keymap - report scancodes with key events Input: h3600_ts_input - fix a spelling error Input: wacom - report resolution for pen devices Input: wacom - constify wacom_features for a new missed Bamboo models
2011-04-05Merge branch 'merge' of ↵Linus Torvalds10-38/+57
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/pseries: Fix build without CONFIG_HOTPLUG_CPU powerpc: Set nr_cpu_ids early and use it to free PACAs powerpc/pseries: Don't register global initcall powerpc/kexec: Fix mismatched ifdefs for PPC64/SMP. edac/mpc85xx: Limit setting/clearing of HID1[RFXE] to e500v1/v2 cores powerpc/85xx: Update dts for PCIe memory maps to match u-boot of Px020RDB
2011-04-05Merge branch 'for-linus' of ↵Linus Torvalds9-25/+145
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: don't warn in btrfs_add_orphan Btrfs: fix free space cache when there are pinned extents and clusters V2 Btrfs: Fix uninitialized root flags for subvolumes btrfs: clear __GFP_FS flag in the space cache inode Btrfs: fix memory leak in start_transaction() Btrfs: fix memory leak in btrfs_ioctl_start_sync() Btrfs: fix subvol_sem leak in btrfs_rename() Btrfs: Fix oops for defrag with compression turned on Btrfs: fix /proc/mounts info. Btrfs: fix compiler warning in file.c
2011-04-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds36-60/+138
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits) ipv6: Don't pass invalid dst_entry pointer to dst_release(). mlx4: fix kfree on error path in new_steering_entry() tcp: len check is unnecessarily devastating, change to WARN_ON sctp: malloc enough room for asconf-ack chunk sctp: fix auth_hmacs field's length of struct sctp_cookie net: Fix dev dev_ethtool_get_rx_csum() for forced NETIF_F_RXCSUM usbnet: use eth%d name for known ethernet devices starfire: clean up dma_addr_t size test iwlegacy: fix bugs in change_interface carl9170: Fix tx aggregation problems with some clients iwl3945: disable hw scan by default wireless: rt2x00: rt2800usb.c add and identify ids iwl3945: do not deprecate software scan mac80211: fix aggregation frame release during timeout cfg80211: fix BSS double-unlinking (continued) cfg80211:: fix possible NULL pointer dereference mac80211: fix possible NULL pointer dereference mac80211: fix NULL pointer dereference in ieee80211_key_alloc() ath9k: fix a chip wakeup related crash in ath9k_start mac80211: fix a crash in minstrel_ht in HT mode with no supported MCS rates ...
2011-04-05perf probe: Fix listing incorrect line number with inline functionMasami Hiramatsu1-53/+81
Fix a bug showing incorrect line number when a probe is put on the head of an inline function. This patch updates find_perf_probe_point() and introduces new rules to get correct line number. - If debuginfo doesn't have a correct file name, we shouldn't return line number too, because, without file name, line number is meaningless. - If the address is in a function, it stores the function name and the offset from the function entry. - If the address is on a line, it tries to get the relative line number from the function entry line, except for the address is same as the entry address of the function (in this case, the relative line number should be 0). - If the address is in an inline function entry (call-site), it uses the inline function call line number as the line on which the address is. - If the address is in an inline function body, it stores the inline function name and offset from the inline function call site instead of the (non-inlined) function. Cc: [email protected] Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Lin Ming <[email protected]> Cc: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2011-04-05perf probe: Fix to find recursively inlined functionMasami Hiramatsu1-1/+14
Fix die_find_inlinefunc() to return correct innermost inlined function at given address. Without this fix, it returns the outermost inlined function. Cc: [email protected] Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Lin Ming <[email protected]> Cc: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2011-04-05perf probe: Fix multiple --vars options behaviorMasami Hiramatsu1-8/+8
Fix a bug that perf-probe fails to initialize libdwfl and shows incorrect error when user gives multiple --vars options. Cc: [email protected] Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Lin Ming <[email protected]> Cc: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2011-04-05perf probe: Fix to remove redundant closeMasami Hiramatsu2-3/+2
Since dwfl_end() closes given fd with dwfl, caller doesn't need to close its fd when finishing process. Cc: [email protected] Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Lin Ming <[email protected]> Cc: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2011-04-05perf probe: Fix to ensure function declared fileMasami Hiramatsu1-0/+8
Fix to ensure function declared file matches given file name. This fixes a potential bug. As I've commented on Lin Ming's fastpath enhancement, decl_file should be checked on each probe point if user gives a probe point as func@file. Cc: [email protected] Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Lin Ming <[email protected]> Cc: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2011-04-05drm/i915/lvds: Remove 0xa0 DDC probe for LVDSChris Wilson1-24/+0
This is a revert of 428d2e828c0a68206e5158a42451487601dc9194. This is broken in the same manner as for VGA: trying to write to an invalid address on the (currently 7-bit) i2c bus. One notable failure appears to be for MacBooks. The scary part was that it gave the appearance of working (i.e. reporting the absence of the panel) on various all-in-one machines with ghost LVDS panels and not failing for laptops. Signed-off-by: Chris Wilson <[email protected]> Acked-by: Dave Airlie <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-04-05drm/i915/crt: Remove 0xa0 probe for VGAChris Wilson1-20/+0
This is a moral revert of 6ec3d0c0e9c0c605696e91048eebaca7b0c36695. Following the fix to reset the GMBUS controller after a NAK, we finally utilize the 0xa0 probe for a CRT connection. And discover that the code is broken. Shock. There are a number of issues, but following a key insight from Dave Airlie, that 0xA0 is an invalid address on a 7-bit bus (though not if we were to enable 10-bit addressing), and would look like the EDID port 0x50, it is possible to see where the confusion starts. In short, a write to 0xA0 is accepted by the GMBUS controller which we interpreted as meaning the existence of a connection (a slave on the other end of the wire ACKing the write). That was false. During testing with a broken GMBUS implementation, which never reset an earlier NAK, this test always reported a NAK and so we proceeded on to the next test. Reported-and-tested-by: Sitsofe Wheeler <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=35904 Reported-and-tested-by: Riccardo Magliocchetti <[email protected]> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=32612 Signed-off-by: Chris Wilson <[email protected]> Acked-by: Dave Airlie <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-04-05sched: Clean up rebalance_domains() load-balance interval calculationPeter Zijlstra2-4/+15
Instead of the possible multiple-evaluation of num_online_cpus() in rebalance_domains() that Linus reported, avoid it altogether in the normal case since it's implemented with a Hamming weight function over a cpu bitmask which can be darn expensive for those with big iron. This also makes it cleaner, smaller and documents the code. Reported-by: Linus Torvalds <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> LKML-Reference: <1301991265.2225.12.camel@twins> Signed-off-by: Ingo Molnar <[email protected]>
2011-04-05UBI: do not select KALLSYMS_ALLArtem Bityutskiy1-1/+1
All UBI needs is to make sure we stacktraces when UBI debugging is enabled. It is enough to select KALLSYMS for this, KALLSYMS_ALL is not necessary. And the current Kconfig line we have: select KALLSYMS_ALL if KALLSYMS && DEBUG_KERNEL is just too complex to be sane and right. But this "if" part there is needed to prevent "unmet direct dependency" warnings, because KALLSYMS_ALL depends on KALLSYMS and DEBUG_KERNEL, so we cannot just select KALLSYMS_ALL. Anyway, this feels messy, and we do not seem to really need KALLSYMS_ALL, so select KALLSYMS instead. Signed-off-by: Artem Bityutskiy <[email protected]> Acked-by: Randy Dunlap <[email protected]>
Powered by cgit, Gruvboxed by Blaster4385.