Anton Blanchard [Mon, 26 Oct 2009 18:49:14 +0000 (18:49 +0000)]
powerpc: tracing: Add powerpc tracepoints for timer entry and exit
We can monitor the effectiveness of our power management of both the
kernel and hypervisor by probing the timer interrupt. For example, on
this box we see 10.37s timer interrupts on an idle core:
Anton Blanchard [Mon, 26 Oct 2009 18:47:42 +0000 (18:47 +0000)]
powerpc: tracing: Add powerpc tracepoints for interrupt entry and exit
This adds powerpc-specific tracepoints for interrupt entry and exit.
While we already have generic irq_handler_entry and irq_handler_exit
tracepoints there are cases on our virtualised powerpc machines where an
interrupt is presented to the OS, but subsequently handled by the hypervisor.
This means no OS interrupt handler is invoked.
Here is an example on a POWER6 machine with the patch below applied:
Here we see two phantom interrupts (no handler was invoked), followed
by a real interrupt for eth0. Without the tracepoints in this patch we
would have missed the phantom interrupts.
Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 27 Oct 2009 18:46:55 +0000 (18:46 +0000)]
powerpc: Create PPC_WARN_ALIGNMENT to match PPC_WARN_EMULATED
perf_event wants a separate event for alignment and emulation faults,
so create another emulation event. This will make it easy to hook in
perf_event at one spot.
We pass in regs which will be required for these events.
Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 27 Oct 2009 18:31:29 +0000 (18:31 +0000)]
powerpc: perf_event: Enable SDAR in continous sample mode
In continuous sampling mode we want the SDAR to update. While we can
select between dcache misses and ERAT (L1-TLB) misses, a decent default
is to enable both.
Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Mon, 21 Sep 2009 16:56:10 +0000 (16:56 +0000)]
powerpc: perf_event: Log invalid data addresses as all 1s
When we take an exception and the SDAR isn't synchronised we currently
log 0 as the address. Unfortunately this is a pretty common value, so
use ~0UL instead.
Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Linus Torvalds [Wed, 14 Oct 2009 22:36:19 +0000 (15:36 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: sbp2: provide fallback if mgt_ORB_timeout is missing
ieee1394: add documentation entry to MAINTAINERS
ieee1394: update URLs in debugging-via-ohci1394.txt
Linus Torvalds [Wed, 14 Oct 2009 22:34:55 +0000 (15:34 -0700)]
Merge branch 'tty-fixes'
* branch 'tty-fixes':
tty: use the new 'flush_delayed_work()' helper to do ldisc flush
workqueue: add 'flush_delayed_work()' to run and wait for delayed work
Make flush_to_ldisc properly handle parallel calls
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
watchdog: Fix rio watchdog probe function
sparc64: Set IRQF_DISABLED on LDC channel IRQs.
sparc64: Fix D-cache flushing on swapin from SW devices.
sparc64: Fix niagara2 perf IRQ bits.
Linus Torvalds [Wed, 14 Oct 2009 22:30:45 +0000 (15:30 -0700)]
Merge branch 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Fix a TRACE_IRQS_OFF typo.
sh: Optimize the setup_rt_frame() I-cache flush.
sh: Populate initial secondary CPU info from boot_cpu_data.
sh: Tidy up SMP cpuinfo.
sh: Use boot_cpu_data for FPU tests in sigcontext paths.
sh: ftrace: Fix up syscall tracepoint support.
sh: force dcache flush if dcache_dirty bit set.
sh: update die() output.
Linus Torvalds [Wed, 14 Oct 2009 22:25:35 +0000 (15:25 -0700)]
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
oprofile: warn on freeing event buffer too early
oprofile: fix race condition in event_buffer free
lockdep: Use cpu_clock() for lockstat
Linus Torvalds [Wed, 14 Oct 2009 22:24:32 +0000 (15:24 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86/paravirt: Use normal calling sequences for irq enable/disable
x86: fix kernel panic on 32 bits when profiling
x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptop
x86, vmi: Mark VMI deprecated and schedule it for removal
Roland McGrath [Wed, 14 Oct 2009 21:16:38 +0000 (14:16 -0700)]
x86: linker script syntax nits
The linker scripts grew some use of weirdly wrong linker script syntax.
It happens to work, but it's not what the syntax is documented to be.
Clean it up to use the official syntax.
Signed-off-by: Roland McGrath <roland@redhat.com> CC: Ian Lance Taylor <iant@google.com>
Stefan Richter [Wed, 7 Oct 2009 22:39:31 +0000 (00:39 +0200)]
firewire: sbp2: provide fallback if mgt_ORB_timeout is missing
The Unit_Characteristics entry of an SBP-2 unit directory is not
mandatory as far as I can tell. If it is missing, we would probably
fail to log in into the target because firewire-sbp2 would not wait for
status after it sent the login request.
The fix moves the cleanup of tgt->mgt_orb_timeout into a place where it
is executed exactly once before login, rather than 0..n times depending
on the target's config ROM. With targets with one or more
Unit_Characteristics entries, the result is the same as before.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Use cio_is_console() in io_subchannel_probe to indicate that the
special handling is console specific. As long as there is no other
subchannel for which this might be true, it is misleading to speak
of "early devices". Should more of these devices be introduced,
a cleanup of all console special handling is in order anyway.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 14 Oct 2009 10:43:49 +0000 (12:43 +0200)]
[S390] call home support: fix proc handler
8d65af78 "sysctl: remove "struct file *" argument of ->proc_handler"
removed the struct file argument from all proc_handlers but didn't
change the call home proc handler (or call home was merged later).
Stefan Haberland [Wed, 14 Oct 2009 10:43:48 +0000 (12:43 +0200)]
[S390] dasd: use idal for device characteristics
If the rdc_buffer is above 2G we need indirect addresssing so we have
to use an idaw to give the rdc_buffer to the ccw.
If the rdc_buffer is under 2G nothing changes.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Michael Holzheu [Wed, 14 Oct 2009 10:43:45 +0000 (12:43 +0200)]
[S390] tape390: Fix request queue handling in block driver
When setting a channel attached tape online under Linux 2.6.31, the
"vol_id" process from udev hangs in sync_page():
2 sync_page+144 [0x1dfaac]
3 __wait_on_bit_lock+194 [0x58c23e]
4 __lock_page+116 [0x1df9dc]
5 truncate_inode_pages_range+728 [0x1ed7cc]
6 __blkdev_put+244 [0x25f738]
7 __fput+300 [0x229c4c]
8 filp_close+122 [0x225a3a]
The reason for that is an error in the request queue handling. It can
happen that we fetch a request, but do not process it further because
the number of queued requests exceeds TAPEBLOCK_MIN_REQUEUE.
To fix this, we should call blk_peek_request() instead of
blk_fetch_request() in the while condition and fetch the request in
the loop body afterwards.
Michael Holzheu [Wed, 14 Oct 2009 10:43:44 +0000 (12:43 +0200)]
[S390] hypfs: Use subcode 6 if subcode 7 is not available
Hypfs never worked on systems that only provide D204 subcode 6.
In these cases we nevertheless used subcode 7. With this fix, we
use subcode 6, if it is available and the system does not provide
subcode 7.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Paul Mundt [Wed, 14 Oct 2009 06:50:28 +0000 (15:50 +0900)]
sh: Fix a TRACE_IRQS_OFF typo.
The resume_userspace path had TRACE_IRQS_OFF written incorrectly and so
never handled the transition properly. This was fixed once before but
seems to have made it back in the tree. Fix it for good.
Paul Mundt [Wed, 14 Oct 2009 05:21:40 +0000 (14:21 +0900)]
sh: Optimize the setup_rt_frame() I-cache flush.
This only needs to flush the return code via the legacy path, and just
invalidates uselessly otherwise. This makes the behaviour consistent for
all of the trampoline setup paths.
Paul Mundt [Wed, 14 Oct 2009 05:14:30 +0000 (14:14 +0900)]
sh: Populate initial secondary CPU info from boot_cpu_data.
The secondary CPU info was seeing corrupted results due to not entering
all of the setup paths taken by the boot CPU. So we just memcpy() the
boot cpu data over directly, and then fix up the per-CPU bits.
Linus Torvalds [Tue, 13 Oct 2009 17:21:33 +0000 (10:21 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
cciss: Add cciss_allow_hpsa module parameter
cciss: Fix multiple calls to pci_release_regions
blk-settings: fix function parameter kernel-doc notation
writeback: kill space in debugfs item name
writeback: account IO throttling wait as iowait
elv_iosched_store(): fix strstrip() misuse
cfq-iosched: avoid probable slice overrun when idling
cfq-iosched: apply bool value where we return 0/1
cfq-iosched: fix think time allowed for seekers
cfq-iosched: fix the slice residual sign
cfq-iosched: abstract out the 'may this cfqq dispatch' logic
block: use proper BLK_RW_ASYNC in blk_queue_start_tag()
block: Seperate read and write statistics of in_flight requests v2
block: get rid of kblock_schedule_delayed_work()
cfq-iosched: fix possible problem with jiffies wraparound
cfq-iosched: fix issue with rq-rq merging and fifo list ordering
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
kbuild: revert "save ARCH & CROSS_COMPILE ..."
warn about use of uninstalled kernel headers
kbuild: mkcompile_h: trivial cleanups
kbuild: fix warning when domainname is not available
kbuild: Fix size_append issue for bzip2/lzma kernel
kbuild,scripts: use non-builtin echo for '-e'
kbuild: fix the binrpm-pkg target to work with KBUILD_OUTPUT set
Ingo Molnar [Mon, 12 Oct 2009 14:22:46 +0000 (16:22 +0200)]
headers: Fix build after <linux/sched.h> removal
Commit d43c36dc6b357fa1806800f18aa30123c747a6d1 ("headers: remove
sched.h from interrupt.h") left some build errors in some configurations
due to drivers having depended on getting header files "accidentally".
Signed-off-by: Ingo Molnar <mingo@elte.hu>
[ Combined several one-liners from Ingo into one single patch - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 13 Oct 2009 17:10:33 +0000 (10:10 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: fix possible deadlock in hidraw_read
HID: fix kerneldoc comment for hid_input_report()
HID: add __init/__exit macros to twinhan.c
Linus Torvalds [Tue, 13 Oct 2009 17:10:18 +0000 (10:10 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Allow all formats as default for Nvidia HDMI
ALSA: aaci: ARM1176 aaci-pl041 AC97 register read timeout
ALSA: hda - Fix volume-knob setup for Dell laptops with STAC9228
ALSA: hda - Fix mute sound with STAC9227/9228 codecs
ALSA: bt87x - Add a whitelist for Pinnacle PCTV (11bd:0012)
ALSA: hda - Fix overflow of spec->init_verbs in patch_realtek.c
ALSA: ice1724 - Make call to set hw params succeed on ESI Juli@
ALSA: ice1724: Fix surround on Chaintech AV-710
ALSA: hda - Add full rates/formats support for Nvidia HDMI
Linus Torvalds [Tue, 13 Oct 2009 17:05:36 +0000 (10:05 -0700)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
ext3: Update documentation about ext3 quota mount options
ext3: Don't update superblock write time when filesystem is read-only
Linus Torvalds [Tue, 13 Oct 2009 17:04:40 +0000 (10:04 -0700)]
Merge git://git.infradead.org/~dwmw2/iommu-2.6.32
* git://git.infradead.org/~dwmw2/iommu-2.6.32:
x86: Move pci_iommu_init to rootfs_initcall()
Run pci_apply_final_quirks() sooner.
Mark pci_apply_final_quirks() __init rather than __devinit
Rename pci_init() to pci_apply_final_quirks(), move it to quirks.c
intel-iommu: Yet another BIOS workaround: Isoch DMAR unit with no TLB space
intel-iommu: Decode (and ignore) RHSA entries
intel-iommu: Make "Unknown DMAR structure" message more informative
Takashi Iwai [Tue, 13 Oct 2009 14:07:59 +0000 (16:07 +0200)]
ALSA: hda - Allow all formats as default for Nvidia HDMI
In the commit f0613d5752d8f7d1d02e6d40947f38877fdf9c90
ALSA: hda - Add full rates/formats support for Nvidia HDMI
the flag LIMITIED_RATE_FMT_SUPPORT was set as default, as I forgot
to clear before commit.
After a reboot on an ARM1176 which amounts to a softreset, it has been
noted that the ALSA driver does not get registered and the probe fails
with the error "aaci-pl041 fpga:04: ac97 read back fail". In the process
of reading from a register the SL1TxBusy bit is set indicating that the
transceiver is busy and remains so until the default timeout occurs.
Set the Power down register 0x26 to an arbitrary value as specified in
the PL041 manual (page: 3-18) so that AACISL1TX/AACISL2TX registers take
their default state.
Signed-off-by: Philby John <pjohn@in.mvista.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Sun, 11 Oct 2009 15:38:29 +0000 (17:38 +0200)]
ALSA: hda - Fix mute sound with STAC9227/9228 codecs
On FSC laptops, the sound gets muted gradually when the volume is chnaged.
This is due to the wrong volume-knob widget setup. The delta bit (bit 7)
shouldn't be set for these devices.
This patch adds a new quirk to set the value 0x7f to the widget 0x24
instead of 0xff.
x86/paravirt: Use normal calling sequences for irq enable/disable
Bastian Blank reported a boot crash with stackprotector enabled,
and debugged it back to edx register corruption.
For historical reasons irq enable/disable/save/restore had special
calling sequences to make them more efficient. With the more
recent introduction of higher-level and more general optimisations
this is no longer necessary so we can just use the normal PVOP_
macros.
This fixes some residual bugs in the old implementations which left
edx liable to inadvertent clobbering. Also, fix some bugs in
__PVOP_VCALLEESAVE which were revealed by actual use.
Add cciss_allow_hpsa module parameter. This parameter causes
the cciss driver to ignore any Smart Array devices known to be
supported by the hpsa driver.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Fix multiple calls to pci_release_regions. If cciss_pci_init
fails, it already does any necessary call to pci_release_regions,
so this does not need to be done again in cciss_init_one in that
case.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Paul Mundt [Tue, 13 Oct 2009 03:42:48 +0000 (12:42 +0900)]
sh: ftrace: Fix up syscall tracepoint support.
Sync up with latest core changes in the syscalls tracing area:
- tracing: Map syscall name to number (syscall_name_to_nr())
- tracing: Call arch_init_ftrace_syscalls at boot
- tracing: add support tracepoint ids (set_syscall_{enter,exit}_id())
Paul Mundt [Tue, 13 Oct 2009 02:18:34 +0000 (11:18 +0900)]
sh: force dcache flush if dcache_dirty bit set.
This too follows the ARM change, given that the issue at hand applies to
all platforms that implement lazy D-cache writeback.
This fixes up the case when a page mapping disappears between the
flush_dcache_page() call (when PG_dcache_dirty is set for the page) and
the update_mmu_cache() call -- such as in the case of swap cache being
freed early. This kills off the mapping test in update_mmu_cache() and
switches to simply testing for PG_dcache_dirty.
Paul Mundt [Tue, 13 Oct 2009 01:57:52 +0000 (10:57 +0900)]
sh: update die() output.
This follows the ARM change, as SH had all of the same issues:
Make die() better match x86:
- add printing of the last accessed sysfs file
- ensure console_verbose() is called under the lock
- ensure we panic outside of oops_exit()
ext3: Don't update superblock write time when filesystem is read-only
This avoids updating the superblock write time when we are mounting
the root file system read/only but we need to replay the journal; at
that point, for people who are east of GMT and who make their clock
tick in localtime for Windows bug-for-bug compatibility, and this will
cause e2fsck to complain and force a full file system check.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Jan Kara <jack@suse.cz>
Linus Torvalds [Mon, 12 Oct 2009 21:38:34 +0000 (14:38 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: Prevent AER driver from being loaded on non-root port PCIE devices
PCI: get larger bridge ranges when space is available
PCI: pci.c: fix kernel-doc notation
PCI quirk: TI XIO200a erroneously reports support for fast b2b transfers
PCI PM: Read device power state from register after updating it
PCI: remove pci_assign_resource_fixed()
PCI: PCIe portdrv: remove "-driver" from driver name
Mike Frysinger [Mon, 12 Oct 2009 13:49:56 +0000 (09:49 -0400)]
USB: musb: invert arch depend string
The MUSB code relies on platform implementations that currently only
exists for Arm and Blackfin processors, so have the MUSB Kconfig depend
upon those arches.
This should prevent other arches from building MUSB via randconfig.
H. Peter Anvin [Mon, 12 Oct 2009 18:32:31 +0000 (11:32 -0700)]
x86: fix kernel panic on 32 bits when profiling
Latest kernel has a kernel panic in booting on i386 machine when
profile=2 setting in cmdline. It is due to 'sp' being incorrect in
profile_pc().
BUG: unable to handle kernel NULL pointer dereference at 00000246
IP: [<c01288b6>] profile_pc+0x2a/0x48
*pde = 00000000
Oops: 0000 [#1] SMP
This differs from the original version by Alex Shi in that we use the
kernel_stack_pointer() inline already defined in <asm/ptrace.h> for
this purpose, instead of #ifdef.
Originally-by: Alex Shi <alex.shi@intel.com> Cc: "Chen, Tim C" <tim.c.chen@intel.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Nitin Gupta [Mon, 12 Oct 2009 08:50:23 +0000 (14:20 +0530)]
ARM: force dcache flush if dcache_dirty bit set
On ARM, update_mmu_cache() does dcache flush for a page only if
it has a kernel mapping (page_mapping(page) != NULL). The correct
behavior would be to force the flush based on dcache_dirty bit only.
One of the cases where present logic would be a problem is when
a RAM based block device[1] is used as a swap disk. In this case,
we would have in-memory data corruption as shown in steps below:
do_swap_page()
{
- Allocate a new page (if not already in swap cache)
- Issue read from swap disk
- Block driver issues flush_dcache_page()
- flush_dcache_page() simply sets PG_dcache_dirty bit and does not
actually issue a flush since this page has no user space mapping yet.
- Now, if swap disk is almost full, this newly read page is removed
from swap cache and corrsponding swap slot is freed.
- Map this page anonymously in user space.
- update_mmu_cache()
- Since this page does not have kernel mapping (its not in page/swap
cache and is mapped anonymously), it does not issue dcache flush
even if dcache_dirty bit is set by flush_dcache_page() above.
<user now gets stale data since dcache was never flushed>
}
Same problem exists on mips too.
[1] example:
- brd (RAM based block device)
- ramzswap (RAM based compressed swap device)
Signed-off-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
David Woodhouse [Mon, 12 Oct 2009 11:51:22 +0000 (12:51 +0100)]
Run pci_apply_final_quirks() sooner.
Having this as a device_initcall() means that some real device drivers
can actually initialise _before_ the quirks are run, which is wrong.
We want it to run _before_ device_initcall(), but _after_ fs_initcall(),
since some arch-specific PCI initialisation like pcibios_assign_resources()
is done at fs_initcall().
We could use rootfs_initcall() but I actually want to use that for the
IOMMU initialisation, which has to come after the quirks, but still
before the real devices. So use fs_initcall_sync() instead -- since this
is entirely synchronous, it doesn't hurt that it'll escape the
synchronisation.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
David Woodhouse [Mon, 12 Oct 2009 11:48:43 +0000 (12:48 +0100)]
Rename pci_init() to pci_apply_final_quirks(), move it to quirks.c
This function may have done more in the past, but all it does now is
apply the PCI_FIXUP_FINAL quirks. So name it sensibly and put it where
it belongs.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Roger Quadros [Wed, 30 Sep 2009 15:26:37 +0000 (18:26 +0300)]
mfd: Fix twl4030 boot with twl4030 usb transceiver enabled
The usb regulator supplies (usb1v5, usb1v8 & usb3v1) must be available
before adding the twl4030_usb child, else twl4030_usb_ldo_init() will
always fail thus causing boot lock-up.
This patch fixes boot on OMAP systems using the twl4030 usb transceiver.
CONFIG_TWL4030_USB=y
Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
David S. Miller [Mon, 12 Oct 2009 10:20:57 +0000 (03:20 -0700)]
sparc64: Fix D-cache flushing on swapin from SW devices.
Thanks to tip form ARM folks and Russell King.
If flush_dcache_page() occurs on a swapin it will have a mapping
and we'll try to defer the flush by setting the dirty bit.
But when it hits update_dcache_page() we won't flush because the
page won't have a mapping any more. So remove the mapping
requirement in flush_dcache().
Signed-off-by: David S. Miller <davem@davemloft.net>
Tejun Heo [Sun, 4 Oct 2009 00:31:05 +0000 (09:31 +0900)]
percpu: fix compile warnings
Fix the following two compile warnings which show up on i386.
mm/percpu.c:1873: warning: comparison of distinct pointer types lacks a cast
mm/percpu.c:1879: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'size_t'
Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Antonio Ospite [Fri, 2 Oct 2009 14:24:02 +0000 (16:24 +0200)]
[ARM] pxamci: fix printing gpio numbers in pxamci_probe
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Julia Lawall [Wed, 16 Sep 2009 09:06:52 +0000 (11:06 +0200)]
[ARM] pxa/csb726: adjust duplicate structure field initialization
Currently the irq_type field of the csb726_lan_config structure is
initialized twice. The value in the first case,
SMSC911X_IRQ_POLARITY_ACTIVE_LOW, is normally stored in the irq_polarity
field, so I have renamed the field in the first initialization to that.
Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Randy Dunlap [Mon, 5 Oct 2009 20:17:29 +0000 (13:17 -0700)]
perf tools: Fix const char type propagation
The following perf build warnings/errors in function
argument types:
builtin-sched.c:1894: warning: passing argument 1 of 'sort_dimension__add' discards qualifiers from pointer target type
util/trace-event-parse.c:685: warning: passing argument 2 of 'read_expected' discards qualifiers from pointer target type
util/trace-event-parse.c:741: warning: passing argument 4 of 'test_type_token' discards qualifiers from pointer target type
util/trace-event-parse.c:706: warning: passing argument 2 of 'read_expected_item' discards qualifiers from pointer target type
... trigger because older GCC is not able to prove that
sort_dimension__add() does not change the string.
Some goes for test_type_token().
Fix this by improving type consistency.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20091005131729.78444bfb.randy.dunlap@oracle.com>
[ Also remove ugly type cast now unnecessary. ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
We simply can't do the USB handoff at FIXUP_HEADER time, since it will
often require us to have valid IO mappings etc. But that in turn
requires a whole different approach, not this trivial one-liner.
Maybe we could teach all the USB quirk handoff handlers to only do the
quirk if the device has all its registers set up (since if it isn't
initialized, it's unlikely to be active), but regardless that will need
a whole lot more code than just saying "let's do it really early".
The proper fix is almost certainly to just leave the legacy IOMMU
mappings active until after all devices have been initialized.
Reported-by: Nick Piggin <npiggin@suse.de> Cc: David Woodhouse <David.Woodhouse@intel.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yinghai Lu [Sun, 11 Oct 2009 21:17:16 +0000 (14:17 -0700)]
pci: increase alignment to make more space for hidden code
As reported in
http://bugzilla.kernel.org/show_bug.cgi?id=13940
on some system when acpi are enabled, acpi clears some BAR for some
devices without reason, and kernel will need to allocate devices for
them. It then apparently hits some undocumented resource conflict,
resulting in non-working devices.
Try to increase alignment to get more safe range for unassigned devices.
Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- On architectures where ARCH= setting is used to select between
32 and 64 bit this was no longer possible without "make mrproper"
- If ARCH was changed then kbuild refused to run "make mrproper"
because ARCH had changed
- When CROSS_COMPILE was changed people were asked to run "make mrproper"
but kbuild refused to run "make mrproper" because CROSS_COMPILE changed.
- Spaces in CROSS_COMPILE was not 'supported'
- If an non-existing ARCH= was used kbuild could get stuck
Lessons learned:
. Despite being simple and straghtforward people uses very different
approaches when building the kernel.
. CROSS_COMPILE is sometimes used for ccache despite cache being
only a CC frontend so one would have expected CC to be
used for this purpose.
. And obviously this was not tested widely enough.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org>
Felipe Contreras [Wed, 16 Sep 2009 21:38:40 +0000 (00:38 +0300)]
kbuild: mkcompile_h: trivial cleanups
UTS_TRUNCATTE is simpler this way, and now editors idetify this as a
shell script.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Felipe Contreras [Wed, 16 Sep 2009 21:38:39 +0000 (00:38 +0300)]
kbuild: fix warning when domainname is not available
Otherwise we get:
"dnsdomainname: Unknown host"
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Alek Du [Wed, 19 Aug 2009 09:18:39 +0000 (17:18 +0800)]
kbuild: Fix size_append issue for bzip2/lzma kernel
The Makefile.lib will call "echo -ne" to append uncompressed kernel size to
bzip2/lzma kernel image.
The "echo" here depends on the shell that /bin/sh pointing to.
On Ubuntu system, the /bin/sh is pointing to dash, which does not support
"echo -e" at all. Use /bin/echo instead of shell echo should always be safe.
Signed-off-by: Alek Du <alek.du@intel.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Frans Pop [Tue, 25 Aug 2009 20:15:39 +0000 (22:15 +0200)]
kbuild: fix the binrpm-pkg target to work with KBUILD_OUTPUT set
The binrpm-pkg target (binary RPM only) fails when called with
KBUILD_OUTPUT set. This patch makes it work.
For the rpm-pkg target (source + binary RPM), building with
KBUILD_OUTPUT set is not possible and also not needed as the
actual build is done in a temporary directory anyway, so check
that KBUILD_OUTPUT is not set in that case to avoid later errors.
Signed-off-by: Frans Pop <elendil@planet.nl> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
projects / karo-tx-linux.git / log