- 09 10月, 2013 8 次提交
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由 Chris Wilson 提交于
If the firmware is not builtin and userspace is not yet running, we can stall the boot process for a minute whilst the firmware loader times out. This is contrary to expectations of providing a builtin EDID! In the process, we can rearrange the code to make the error handling more resilient and prevent gcc warning about unitialised variables along the error paths. v2: Load builtins first, fix gcc second (Jani) and cosmetics (Ville). v3: Verify that we do not read beyond the end of the fwdata (Ville) Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: NJani Nikula <jani.nikula@intel.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 David Herrmann 提交于
Analog to drm_dev_register(), we now provide drm_dev_unregister() which does the reverse. drm_dev_put() is still in place and combines the calls to drm_dev_unregister() and drm_dev_free() so buses don't have to change. *_get() and *_put() are used for reference-counting in the kernel. However, drm_dev_put() definitely does not do any kind of ref-counting. Hence, use the more appropriate *_register(), *_unregister(), *_alloc() and *_free() names. Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com> Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 David Herrmann 提交于
The error paths in DRM bus drivers currently leak memory as they don't correctly revert drm_dev_alloc(). Introduce drm_dev_free() to free DRM devices which haven't been registered, yet. We must be careful not to introduce any side-effects with cleanups done in drm_dev_free(). drm_ht_remove(), drm_ctxbitmap_cleanup() and drm_gem_destroy() are all fine in that regard. Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 David Herrmann 提交于
Try to keep all functions that handle DRM file_operations in drm_fops.c so internal helpers can be marked static later. This makes the split between the 3 core files more obvious: - drm_stub.c: DRM device allocation/destruction and management - drm_fops.c: DRM file_operations (except for ioctl) - drm_drv.c: Global DRM init + ioctl handling Well, ioctl handling is still spread throughout hundreds of source files, but at least the others are clearly defined this way. Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 David Herrmann 提交于
All bus drivers do device setup themselves. This requires us to adjust all of them if we introduce new core features. Thus, merge all these into a uniform drm_dev_register() helper. Note that this removes the drm_lastclose() error path for AGP as it is horribly broken. Moreover, no bus driver called this in any other error path either. Instead, we use the recently introduced AGP cleanup helpers. We also keep a DRIVER_MODESET condition around pci_set_drvdata() to keep semantics. [airlied: keep passing flags through so drivers don't oops on load] Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 David Herrmann 提交于
Instead of managing device allocation+initialization in each bus-driver, we should do that in a central place. drm_fill_in_dev() already does most of it, but also requires the global drm lock for partial AGP device registration. Split both apart so we have a clean device initialization/allocation phase, and a registration phase. Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 David Herrmann 提交于
All drivers embed gem-objects into their own buffer objects. There is no reason to keep drm_gem_object_alloc(), gem->driver_private and ->gem_init_object() anymore. New drivers are highly encouraged to do the same. There is no benefit in allocating gem-objects separately. Cc: Dave Airlie <airlied@gmail.com> Cc: Alex Deucher <alexdeucher@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Ben Skeggs <skeggsb@gmail.com> Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com> Acked-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 David Herrmann 提交于
There is no reason to keep the gem object separately allocated. nouveau is the last user of gem_obj->driver_private, so if we embed it, we can get rid of 8bytes per gem-object. The implementation follows the radeon driver. bo->gem is only valid, iff the bo was created via the gem helpers _and_ iff the user holds a valid gem reference. That is, as the gem object holds a reference to the nouveau_bo. If you use nouveau_ref() to gain a bo reference, you are not guaranteed to also hold a gem reference. The gem object might get destroyed after the last user drops the gem-ref via drm_gem_object_unreference(). Use drm_gem_object_reference() to gain a gem-reference. For debugging, we can use bo->gem.filp != NULL to test whether a gem-bo is valid. However, this shouldn't be used for real functionality to avoid gem-internal dependencies. Note that the implementation follows the previous style. However, we no longer can check for bo->gem != NULL to test for a valid gem object. This wasn't done before, so we should be safe now. Signed-off-by: NDavid Herrmann <dh.herrmann@gmail.com> Acked-by: NMaarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: NBen Skeggs <bskeggs@redhat.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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- 01 10月, 2013 12 次提交
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由 Lespiau, Damien 提交于
Signed-off-by: NDamien Lespiau <damien.lespiau@intel.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Lespiau, Damien 提交于
Signed-off-by: NDamien Lespiau <damien.lespiau@intel.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Lespiau, Damien 提交于
Signed-off-by: NDamien Lespiau <damien.lespiau@intel.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Lespiau, Damien 提交于
Signed-off-by: NDamien Lespiau <damien.lespiau@intel.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Lespiau, Damien 提交于
Signed-off-by: NDamien Lespiau <damien.lespiau@intel.com> Reviewed-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Alex Deucher 提交于
Return -ENOMEM if the allocation fails. Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Reviewed-by: NJani Nikula <jani.nikula@intel.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Jani Nikula 提交于
None of the DP DPCD helpers need to modify the DPCD. Signed-off-by: NJani Nikula <jani.nikula@intel.com> Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Jani Nikula 提交于
Signed-off-by: NJani Nikula <jani.nikula@intel.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Jani Nikula 提交于
We have some code duplication related to EDID duplication. Add a helper. Signed-off-by: NJani Nikula <jani.nikula@intel.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Jani Nikula 提交于
We haven't read the downstream port caps for DPCD 1.0, so don't use them. v2: use defines for DPCD 1.0 downstream port types Signed-off-by: NJani Nikula <jani.nikula@intel.com> Reviewed-by: NAdam Jackson <ajax@redhat.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Jani Nikula 提交于
Detailed cap info at address 80h is not available with DPCD ver 1.0. Whether such devices exist in the wild I don't know, but there should be no harm done in having the defines for downstream port 0 in address 05h. Signed-off-by: NJani Nikula <jani.nikula@intel.com> Reviewed-by: NTodd Previte <tprevite@gmail.com> Reviewed-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Dave Airlie 提交于
Merge tag 'drm-intel-next-2013-09-21-merged' of git://people.freedesktop.org/~danvet/drm-intel into drm-next drm-intel-next-2013-09-21: - clock state handling rework from Ville - l3 parity handling fixes for hsw from Ben - some more watermark improvements from Ville - ban badly behaved context from Mika - a few vlv improvements from Jesse - VGA power domain handling from Ville drm-intel-next-2013-09-06: - Basic mipi dsi support from Jani. Not yet converted over to drm_bridge since that was too fresh, but the porting is in progress already. - More vma patches from Ben, this time the code to convert the execbuffer code. Now that the shrinker recursion bug is tracked down we can move ahead here again. Yay! - Optimize hw context switching to not generate needless interrupts (Chris Wilson). Also some shuffling for the oustanding request allocation. - Opregion support for SWSCI, although not yet fully wired up (we need a bit of runtime D3 support for that apparently, due to Windows design deficiencies), from Jani Nikula. - A few smaller changes all over. [airlied: merge conflict fix in i9xx_set_pipeconf] * tag 'drm-intel-next-2013-09-21-merged' of git://people.freedesktop.org/~danvet/drm-intel: (119 commits) drm/i915: assume all GM45 Acer laptops use inverted backlight PWM drm/i915: cleanup a min_t() cast drm/i915: Pull intel_init_power_well() out of intel_modeset_init_hw() drm/i915: Add POWER_DOMAIN_VGA drm/i915: Refactor power well refcount inc/dec operations drm/i915: Add intel_display_power_{get, put} to request power for specific domains drm/i915: Change i915_request power well handling drm/i915: POSTING_READ IPS_CTL before waiting for the vblank drm/i915: don't disable ERR_INT on the IRQ handler drm/i915/vlv: disable rc6p and rc6pp residency reporting on BYT drm/i915/vlv: honor i915_enable_rc6 boot param on VLV drm/i915: s/HAS_L3_GPU_CACHE/HAS_L3_DPF drm/i915: Do remaps for all contexts drm/i915: Keep a list of all contexts drm/i915: Make l3 remapping use the ring drm/i915: Add second slice l3 remapping drm/i915: Fix HSW parity test drm/i915: dump crtc timings from the pipe config drm/i915: register backlight device also when backlight class is a module drm/i915: write D_COMP using the mailbox ... Conflicts: drivers/gpu/drm/i915/intel_display.c
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- 30 9月, 2013 8 次提交
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb由 Linus Torvalds 提交于
Pull USB fixes from Greg KH: "Here are a number of USB driver fixes for 3.12-rc3. These are all for host controller issues that have been reported, and there's a fix for an annoying error message that gets printed every time you remove a USB 3 device from the system that's been bugging me for a while" * tag 'usb-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: dwc3: add support for Merrifield USB: fsl/ehci: fix failure of checking PHY_CLK_VALID during reinitialization USB: Fix breakage in ffs_fs_mount() fsl/usb: Resolve PHY_CLK_VLD instability issue for ULPI phy usb/core/devio.c: Don't reject control message to endpoint with wrong direction bit usb: chipidea: USB_CHIPIDEA should depend on HAS_DMA usb: chipidea: udc: free pending TD at removal procedure usb: chipidea: imx: Add usb_phy_shutdown at probe's error path usb: chipidea: Fix memleak for ci->hw_bank.regmap when removal usb: chipidea: udc: fix the oops after rmmod gadget USB: fix PM config symbol in uhci-hcd, ehci-hcd, and xhci-hcd USB: OHCI: accept very late isochronous URBs USB: UHCI: accept very late isochronous URBs USB: iMX21: accept very late isochronous URBs usbcore: check usb device's state before sending a Set SEL control transfer xhci: Fix race between ep halt and URB cancellation usb: Fix xHCI host issues on remote wakeup. xhci: Ensure a command structure points to the correct trb on the command ring xhci: Fix oops happening after address device timeout
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty由 Linus Torvalds 提交于
Pull tty/serial fixes from Greg KH: "Here are some serial at tty driver fixes for 3.12-rc3 The serial driver fixes some kref leaks, documentation is moved to the proper places, and the tty and n_tty fixes resolve some reported regressions. There is still one outstanding tty regression fix that isn't in here yet, as I want to test it out some more, it will be sent for 3.12-rc4 if it checks out" * tag 'tty-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: ar933x_uart: move devicetree binding documentation tty: Fix SIGTTOU not sent with tcflush() n_tty: Fix EOF push index when termios changes serial: pch_uart: remove unnecessary tty_port_tty_get serial: pch_uart: fix tty-kref leak in dma-rx path serial: pch_uart: fix tty-kref leak in rx-error path serial: tegra: fix tty-kref leak
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging由 Linus Torvalds 提交于
Pull staging fixes from Greg KH: "Here are some staging driver fixes, MAINTAINER updates, and a new device id. All of these have been in the linux-next tree, and are pretty simple patches" * tag 'staging-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: r8188eu: Add new device ID staging: imx-drm: Fix probe failure staging: vt6656: [BUG] iwctl_siwencodeext return if device not open staging: vt6656: [BUG] main_usb.c oops on device_close move flag earlier. staging: vt6656: rxtx.c [BUG] s_vGetFreeContext dead lock on null apTD. Staging: rtl8192u: r819xU_cmdpkt: checking NULL value after doing dev_alloc_skb staging: usbip: Orphan usbip staging: r8188eu: Add files for new drive: Cocci spatch "noderef" staging: r8188eu: Cocci spatch "noderef" staging: octeon-usb: Cocci spatch "noderef" staging: r8188eu: Add files for new drive: Cocci spatch "noderef" MAINTAINERS: staging: dgnc and dgap drivers: add maintainer staging: lustre: Cocci spatch "noderef"
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由 Linus Torvalds 提交于
Merge tag 'driver-core-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core / sysfs fixes from Greg KH: "Here are 2 fixes for 3.12-rc3. One fixes a sysfs problem with mounting caused by 3.12-rc1, and the other is a bug reported by the chromeos developers with the driver core. Both have been in linux-next for a bit" * tag 'driver-core-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: driver core : Fix use after free of dev->parent in device_shutdown sysfs: Allow mounting without CONFIG_NET
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc由 Linus Torvalds 提交于
Pull char/misc driver fixes from Greg KH: "Here are some HyperV and MEI driver fixes for 3.12-rc3. They resolve some issues that people have been reporting for them" * tag 'char-misc-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Drivers: hv: vmbus: Terminate vmbus version negotiation on timeout Drivers: hv: util: Correctly support ws2008R2 and earlier mei: cancel stall timers in mei_reset mei: bus: stop wait for read during cl state transition mei: make me client counters less error prone
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull perf revert from Ingo Molnar: "This fixes the 'perf top' regression Markus Trippelsdorf reported" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert "perf symbols: Demangle cloned functions"
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git://people.freedesktop.org/~airlied/linux由 Linus Torvalds 提交于
Pull drm fixes from Dave Airlie: "Nothing too major, radeon still has some dpm changes for off by default. Radeon, intel, msm: - radeon: a few more dpm fixes (still off by default), uvd fixes - i915: runtime warn backtrace and regression fix - msm: iommu changes fallout" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (27 commits) drm/msm: use drm_gem_dumb_destroy helper drm/msm: deal with mach/iommu.h removal drm/msm: Remove iommu include from mdp4_kms.c drm/msm: Odd PTR_ERR usage drm/i915: Fix up usage of SHRINK_STOP drm/radeon: fix hdmi audio on DCE3.0/3.1 asics drm/i915: preserve pipe A quirk in i9xx_set_pipeconf drm/i915/tv: clear adjusted_mode.flags drm/i915/dp: increase i2c-over-aux retry interval on AUX DEFER drm/radeon/cik: fix overflow in vram fetch drm/radeon: add missing hdmi callbacks for rv6xx drm/i915: Use a temporary va_list for two-pass string handling drm/radeon/uvd: lower msg&fb buffer requirements on UVD3 drm/radeon: disable tests/benchmarks if accel is disabled drm/radeon: don't set default clocks for SI when DPM is disabled drm/radeon/dpm/ci: filter clocks based on voltage/clk dep tables drm/radeon/dpm/si: filter clocks based on voltage/clk dep tables drm/radeon/dpm/ni: filter clocks based on voltage/clk dep tables drm/radeon/dpm/btc: filter clocks based on voltage/clk dep tables drm/radeon/dpm: fetch the max clk from voltage dep tables helper ...
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- 29 9月, 2013 12 次提交
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由 Ingo Molnar 提交于
This reverts commit de95ab53. Markus Trippelsdorf reported that this commit broke 'perf top': > I just see a gray screen with no text at all. Sometimes the > following error messages are printed: > > *** Error in `perf': invalid fastbin entry (free): 0x00000000029b18c0 > *** > *** Error in `perf': malloc(): memory corruption (fast): 0x0000000000ee0b10 *** While this code is fixable, the commit itself fails on several levels: - it should have been a separate helper function - why the heck does it do strchr() twice - it casts a const char * over into char * - sloppy style - it's not even a regression fix! So lets revert it and re-try the patch in v3.13. Reported-by: NMarkus Trippelsdorf <markus@trippelsdorf.de> Cc: Andi Kleen <ak@linux.intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@kernel.org>
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git://people.freedesktop.org/~robclark/linux由 Dave Airlie 提交于
A small fix + deal with fallout of iommu changes + use new drm_gem_dumb_destroy helper. * 'msm-fixes-3.12-rc2' of git://people.freedesktop.org/~robclark/linux: drm/msm: use drm_gem_dumb_destroy helper drm/msm: deal with mach/iommu.h removal drm/msm: Remove iommu include from mdp4_kms.c drm/msm: Odd PTR_ERR usage
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由 Linus Torvalds 提交于
Merge branches 'sched-urgent-for-linus', 'timers-urgent-for-linus' and 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler, timer and x86 fixes from Ingo Molnar: - A context tracking ARM build and functional fix - A handful of ARM clocksource/clockevent driver fixes - An AMD microcode patch level sysfs reporting fixlet * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: arm: Fix build error with context tracking calls * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource: em_sti: Set cpu_possible_mask to fix SMP broadcast clocksource: of: Respect device tree node status clocksource: exynos_mct: Set IRQ affinity when the CPU goes online arm: clocksource: mvebu: Use the main timer as clock source from DT * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode/AMD: Fix patch level reporting for family 15h
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull perf fixes from Ingo Molnar: "A couple of tooling fixlets and a PMU detection printout fix" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Fix PMU detection printout when no PMU is detected perf symbols: Demangle cloned functions perf machine: Fix path unpopulated in machine__create_modules() perf tools: Explicitly add libdl dependency perf probe: Fix probing symbols with optimization suffix perf trace: Add mmap2 handler perf kmem: Make it work again on non NUMA machines
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git://oss.sgi.com/xfs/xfs由 Linus Torvalds 提交于
Pull xfs bugfixes from Ben Myers: - fix for directory node collapse regression - fix for recovery over stale on disk structures - fix for eofblocks ioctl - fix asserts in xfs_inode_free - lock the ail before removing an item from it * tag 'xfs-for-linus-v3.12-rc3' of git://oss.sgi.com/xfs/xfs: xfs: fix node forward in xfs_node_toosmall xfs: log recovery lsn ordering needs uuid check xfs: fix XFS_IOC_FREE_EOFBLOCKS definition xfs: asserting lock not held during freeing not valid xfs: lock the AIL before removing the buffer item
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux由 Linus Torvalds 提交于
Pull i2c fixes from Wolfram Sang: "Some driver bugfixes for the I2C subsystem" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: ismt: initialize DMA buffer i2c: designware: 10-bit addressing mode enabling if I2C_DYNAMIC_TAR_UPDATE is set i2c: mv64xxx: Do not use writel_relaxed() i2c: mv64xxx: Fix some build warnings i2c: s3c2410: fix clk_disable/clk_unprepare WARNings
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm由 Linus Torvalds 提交于
Pull ACPI and power management fixes from Rafael Wysocki: "These fix one recent cpufreq regression, a few older bugs that may harm users and a kerneldoc typo. Specifics: 1) After the recent locking changes in the cpufreq core it is possible to trigger BUG_ON(!policy) in lock_policy_rwsem_read() if cpufreq_get() is called before registering a cpufreq driver. Fix from Viresh Kumar. 2) If intel_pstate has been loaded already, it doesn't make sense to do anything in acpi_cpufreq_init() and moreover doing something in there in that case may be harmful, so make that function return immediately if another cpufreq driver is already present. From Yinghai Lu. 3) The ACPI IPMI driver sometimes attempts to acquire a mutex from interrupt context, which can be avoided by replacing that mutex with a spinlock. From Lv Zheng. 4) A NULL pointer may be dereferenced by the exynos5440 cpufreq driver if a memory allocation made by it fails. Fix from Sachin Kamat. 5) Hanjun Guo's commit fixes a typo in the kerneldoc comment documenting acpi_bus_unregister_driver()" * tag 'pm+acpi-3.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / scan: fix typo in comments of acpi_bus_unregister_driver() cpufreq: exynos5440: Fix potential NULL pointer dereference cpufreq: check cpufreq driver is valid and cpufreq isn't disabled in cpufreq_get() acpi-cpufreq: skip loading acpi_cpufreq after intel_pstate ACPI / IPMI: Fix atomic context requirement of ipmi_msg_handler()
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由 Yinghai Lu 提交于
Ben Herrenschmidt found that commit 928bea96 ("PCI: Delay enabling bridges until they're needed") breaks PCI in some powerpc environments. The reason is that the PCIe port driver will call pci_enable_device() on the bridge, so the device is enabled, but skips pci_set_master because pcie_port_auto and no acpi on powerpc. Because of that, pci_enable_bridge() later on (called as a result of the child device driver doing pci_enable_device) will see the bridge as already enabled and will not call pci_set_master() on it. Fixed by add checking in pci_enable_bridge, and call pci_set_master if driver skip that. That will make the code more robot and wade off problem for missing pci_set_master in drivers. Reported-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux由 Linus Torvalds 提交于
Pull s390 lockref enablement from Heiko Carstens: "Enabling the new lockless lockref variant on s390 would have been trivial until Tony Luck added a cpu_relax() call into the CMPXCHG_LOOP(), with commit d472d9d9 ("lockref: Relax in cmpxchg loop") As already mentioned cpu_relax() is very expensive on s390 since it yields() the current virtual cpu. So we are talking of several thousand cycles. Considering this enabling the lockless lockref variant would contradict the intention of the new semantics. And also some quick measurements show performance regressions of 50% and more. Simply removing the cpu_relax() call again seems also not very desireable since Waiman Long reported that for some workloads the call improved performance by 5%." * 'lockref' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: enable ARCH_USE_CMPXCHG_LOCKREF lockref: use arch_mutex_cpu_relax() in CMPXCHG_LOOP() mutex: replace CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX with simple ifdef
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由 Jean Delvare 提交于
Commit 6072ddc8 ("kernel: replace strict_strto*() with kstrto*()") broke the handling of signed integer types, fix it. Signed-off-by: NJean Delvare <khali@linux-fr.org> Reported-by: NChristian Kujau <lists@nerdbynature.de> Tested-by: NChristian Kujau <lists@nerdbynature.de> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux由 Linus Torvalds 提交于
Pull DeviceTree fixes from Rob Herring: "Clean-up to fix some warnings for !OF builds and spelling fixes in docs: - Clean-up openrisc prom.h - Fix warnings caused by of_irq.h ifdefs - Spelling fix for Synopsys" * tag 'devicetree-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dts: Fix misspelling of Synopsys of: clean-up ifdefs in of_irq.h openrisc: clean-up prom.h
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git://git.linaro.org/people/rmk/linux-arm由 Linus Torvalds 提交于
Pull ARM fixes from Russell King: "Just a few relatively small ARM fixes found since the last merge window, nothing too exciting" * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7837/3: fix Thumb-2 bug in AES assembler code ARM: only allow kernel mode neon with AEABI ARM: 7839/1: entry: fix tracing of ARM-private syscalls ARM: 7836/1: add __get_user_unaligned/__put_user_unaligned
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