There are two places in ecryptfs that benefit from using
ecryptfs_dentry_to_lower_path() instead of separate calls to
ecryptfs_dentry_to_lower() and ecryptfs_dentry_to_lower_mnt(). Both
sites use fewer instructions and less stack (determined by examining
objdump output).
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
The 'dest' abbreviation is only used in crypt_scatterlist(), while all
other functions in crypto.c use 'dst' so dest_sg should be renamed to
dst_sg.
The crypt_stat parameter is typically the first parameter in internal
eCryptfs functions so crypt_stat and dst_page should be swapped in
crypt_extent().
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
crypt_page_offset() simply initialized the two scatterlists and called
crypt_scatterlist() so it is simple enough to move into the only
function that calls it.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
They are identical except if the src_page or dst_page index is used, so
they can be merged safely if page_index is conditionally assigned.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Combine ecryptfs_encrypt_page_offset() and
ecryptfs_decrypt_page_offset(). These two functions are functionally
identical so they can be safely merged if the caller can indicate
whether an encryption or decryption operation should occur.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
These two functions are identical except for a debug printk and whether
they call crypto_ablkcipher_encrypt() or crypto_ablkcipher_decrypt(), so
they can be safely merged if the caller can indicate if encryption or
decryption should occur.
The debug printk is useless so it is removed.
Two new #define's are created to indicate if an ENCRYPT or DECRYPT
operation is desired.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
When reading in a page, eCryptfs would allocate a helper page, fill it
with encrypted data from the lower filesytem, and then decrypt the data
from the encrypted page and store the result in the eCryptfs page cache
page.
The crypto API supports in-place crypto operations which means that the
allocation of the helper page is unnecessary when decrypting. This patch
gets rid of the unneeded page allocation by reading encrypted data from
the lower filesystem directly into the page cache page. The page cache
page is then decrypted in-place.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
There is no longer a need to accept different offset values for the
source and destination pages when encrypting/decrypting an extent in an
eCryptfs page. The two offsets can be collapsed into a single parameter.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Now that lower filesystem IO operations occur for complete
PAGE_CACHE_SIZE bytes, the calculation for converting an eCryptfs extent
index into a lower file offset can be simplified.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
When reading and writing encrypted pages, perform IO using the entire
page all at once rather than 4096 bytes at a time.
This only affects architectures where PAGE_CACHE_SIZE is larger than
4096 bytes.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
When encrypting eCryptfs pages and decrypting pages from the lower
filesystem, utilize the entire helper page rather than only the first
4096 bytes.
This only affects architectures where PAGE_CACHE_SIZE is larger than
4096 bytes.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
* A couple of MAINTAINERS updates
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Merge tag 'ecryptfs-3.10-rc5-msync' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull ecryptfs fixes from Tyler Hicks:
- Fixes how eCryptfs handles msync to sync both the upper and lower
file
- A couple of MAINTAINERS updates
* tag 'ecryptfs-3.10-rc5-msync' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
eCryptfs: Check return of filemap_write_and_wait during fsync
Update eCryptFS maintainers
ecryptfs: fixed msync to flush data
Pull CIFS fix from Steve French:
"Fix one byte buffer overrun with prefixpaths on cifs mounts which can
cause a problem with mount depending on the string length"
* 'for-3.10' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix off-by-one bug in build_unc_path_to_root
- A pile of small regression fix patches for HD-audio VIA codecs
- Quirks for HD-aduio and USB-audio devices
- A trivial SIS7019 error path fix
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Merge tag 'sound-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
- A pile of small regression fix patches for HD-audio VIA codecs
- Quirks for HD-aduio and USB-audio devices
- A trivial SIS7019 error path fix
* tag 'sound-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio - Fix invalid volume resolution on Logitech HD webcam c270
ALSA: usb-audio - Apply Logitech QuickCam Pro 9000 quirk only to audio iface
ALSA: hda/via - Clean up duplicated codes
ALSA: hda/via - Fix wrongly cleared pins after suspend on VT1802
ALSA: hda - Add keep_eapd_on flag to generic parser
ALSA: hda - Allow setting automute/automic hooks after parsing
ALSA: hda/via - Disable broken dynamic power control
ALSA: usb-audio: fix Roland/Cakewalk UM-3G support
ALSA: hda - Add headset quirk for two Dell machines
ALSA: hda - add dock support for Thinkpad T431s
ALSA: sis7019: fix error return code in sis_chip_create()
- Fix for an ACPI PM regression causing Toshiba P870-303 to crash
during boot from Rafael J Wysocki.
- ACPI fix for an issue causing some drivers to attempt to bind to
devices they shouldn't touch from Aaron Lu.
- Fix for a recent cpufreq regression related to a possible race with
CPU offline from Michael Wang.
- ACPI cpufreq regression fix for an issue causing turbo frequencies
to be underutilized in some cases from Ross Lagerwall.
- cpufreq-cpu0 driver fix related to incorrect clock ACPI usage from
Guennadi Liakhovetski.
- HP WMI driver fix for an issue causing GPS initialization and
poweroff failures on HP Elitebook 6930p from Lan Tianyu.
- APEI (ACPI Platform Error Interface) fix for an issue in the error
code path in ghes_probe() from Wei Yongjun.
- New ACPI video driver blacklist entries for HP m4 and HP Pavilion
g6 from Alex Hung and Ash Willis.
/
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Merge tag 'pm+acpi-3.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael J Wysocki:
- Fix for an ACPI PM regression causing Toshiba P870-303 to crash
during boot from Rafael J Wysocki.
- ACPI fix for an issue causing some drivers to attempt to bind to
devices they shouldn't touch from Aaron Lu.
- Fix for a recent cpufreq regression related to a possible race with
CPU offline from Michael Wang.
- ACPI cpufreq regression fix for an issue causing turbo frequencies to
be underutilized in some cases from Ross Lagerwall.
- cpufreq-cpu0 driver fix related to incorrect clock ACPI usage from
Guennadi Liakhovetski.
- HP WMI driver fix for an issue causing GPS initialization and
poweroff failures on HP Elitebook 6930p from Lan Tianyu.
- APEI (ACPI Platform Error Interface) fix for an issue in the error
code path in ghes_probe() from Wei Yongjun.
- New ACPI video driver blacklist entries for HP m4 and HP Pavilion g6
from Alex Hung and Ash Willis.
* tag 'pm+acpi-3.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / PM: Do not execute _PS0 for devices without _PSC during initialization
cpufreq: cpufreq-cpu0: use the exact frequency for clk_set_rate()
cpufreq: protect 'policy->cpus' from offlining during __gov_queue_work()
ACPI / scan: do not match drivers against objects having scan handlers
ACPI / APEI: fix error return code in ghes_probe()
acpi-cpufreq: set current frequency based on target P-State
ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6
ACPI / video: ignore BIOS initial backlight value for HP m4
x86 / platform / hp_wmi: Fix bluetooth_rfkill misuse in hp_wmi_rfkill_setup()
* pm-fixes:
cpufreq: cpufreq-cpu0: use the exact frequency for clk_set_rate()
cpufreq: protect 'policy->cpus' from offlining during __gov_queue_work()
acpi-cpufreq: set current frequency based on target P-State
* acpi-fixes:
ACPI / PM: Do not execute _PS0 for devices without _PSC during initialization
ACPI / scan: do not match drivers against objects having scan handlers
ACPI / APEI: fix error return code in ghes_probe()
ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6
ACPI / video: ignore BIOS initial backlight value for HP m4
x86 / platform / hp_wmi: Fix bluetooth_rfkill misuse in hp_wmi_rfkill_setup()
Commit b378549 (ACPI / PM: Do not power manage devices in unknown
initial states) added code to force devices without _PSC, but having
_PS0 defined in the ACPI namespace, into ACPI power state D0 by
executing _PS0 for them. That turned out to break Toshiba P870-303,
however, so revert that code.
References: https://bugzilla.kernel.org/show_bug.cgi?id=58201
Reported-and-tested-by: Jerome Cantenot <jerome.cantenot@gmail.com>
Tracked-down-by: Lan Tianyu <tianyu.lan@intel.com>
Cc: 3.9+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull networking fix from David Miller:
"This is a quick one commit pull request to cure the regression
introduced by the MSG_CMSG_COMPAT change."
(Background: commit 1be374a051 completely broke 32-bit COMPAT handling
by not only disallowing MSG_CMSG_COMPAT from user APIs, but clearing it
in our own internal use too!)
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: Unbreak compat_sys_{send,recv}msg
Here are some staging and IIO driver fixes for the 3.10-rc5 release.
All of them are tiny, and fix a number of reported issues (build and
runtime.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg Kroah-Hartman:
"Here are some staging and IIO driver fixes for the 3.10-rc5 release.
All of them are tiny, and fix a number of reported issues (build and
runtime)"
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'staging-3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio:inkern: Fix typo/bug in convert raw to processed.
iio: frequency: ad4350: Fix bug / typo in mask
inkern: iio_device_put after incorrect return/goto
staging: alarm-dev: information leak in alarm_compat_ioctl()
iio:callback buffer: free the scan_mask
staging: alarm-dev: information leak in alarm_ioctl()
drivers: staging: zcache: fix compile error
staging: dwc2: fix value of dma_mask
Here are some small bugfixes, and one revert, of serial driver issues
that have been reported.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg Kroah-Hartman:
"Here are some small bugfixes, and one revert, of serial driver issues
that have been reported"
* tag 'tty-3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "serial: 8250: Make SERIAL_8250_RUNTIME_UARTS work correctly"
serial: samsung: enable clock before clearing pending interrupts during init
serial/imx: disable hardware flow control at startup
Here are a number of USB bugfixes and new device ids for the 3.10-rc5 tree.
Nothing major here, a number of new device ids (and movement from the
option to the zte_ev driver of a number of ids that we had previously
gotten wrong, some xhci bugfixes, some usb-serial driver fixes that were
recently found, some host controller fixes / reverts, and a variety of
smaller other things.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are a number of USB bugfixes and new device ids for the 3.10-rc5
tree.
Nothing major here, a number of new device ids (and movement from the
option to the zte_ev driver of a number of ids that we had previously
gotten wrong, some xhci bugfixes, some usb-serial driver fixes that
were recently found, some host controller fixes / reverts, and a
variety of smaller other things"
* tag 'usb-3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (29 commits)
USB: option,zte_ev: move most ZTE CDMA devices to zte_ev
USB: option: blacklist network interface on Huawei E1820
USB: whiteheat: fix broken port configuration
USB: serial: fix TIOCMIWAIT return value
USB: mos7720: fix hardware flow control
USB: keyspan: remove unused endpoint-array access
USB: keyspan: fix bogus array index
USB: zte_ev: fix broken open
USB: serial: Add Option GTM681W to qcserial device table.
USB: Serial: cypress_M8: Enable FRWD Dongle hidcom device
USB: EHCI: fix regression related to qh_refresh()
usbfs: Increase arbitrary limit for USB 3 isopkt length
USB: zte_ev: fix control-message timeouts
USB: mos7720: fix message timeouts
USB: iuu_phoenix: fix bulk-message timeout
USB: ark3116: fix control-message timeout
USB: mos7840: fix DMA to stack
USB: mos7720: fix DMA to stack
USB: visor: fix initialisation of Treo/Kyocera devices
USB: serial: fix Treo/Kyocera interrrupt-in urb context
...
PCI ROM from EFI
x86/PCI: Map PCI setup data with ioremap() so it can be in highmem
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Merge tag 'pci-v3.10-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"This fixes a crash when booting a 32-bit kernel via the EFI boot stub.
PCI ROM from EFI
x86/PCI: Map PCI setup data with ioremap() so it can be in highmem"
* tag 'pci-v3.10-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
x86/PCI: Map PCI setup data with ioremap() so it can be in highmem
- Rework of dquot CRCs
- Fix for remote attribute invalidation of a leaf
- Fix ordering of transaction replay in recovery
- Implement CRCs for inode unlinked list
- Disable noattr2/attr2 mount options when CRCs are enabled
- Bump the limitation of ACL entries for v5 superblocks
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Merge tag 'for-linus-v3.10-rc5' of git://oss.sgi.com/xfs/xfs
Pull more xfs updates from Ben Myers:
"Here are several fixes for filesystems with CRC support turned on:
fixes for quota, remote attributes, and recovery. There is also some
feature work related to CRCs: the implementation of CRCs for the inode
unlinked lists, disabling noattr2/attr2 options when appropriate, and
bumping the maximum number of ACLs.
I would have preferred to defer this last category of items to 3.11.
This would require setting a feature bit for the on-disk changes, so
there is some pressure to get these in 3.10. I believe this
represents the end of the CRC related queue.
- Rework of dquot CRCs
- Fix for remote attribute invalidation of a leaf
- Fix ordering of transaction replay in recovery
- Implement CRCs for inode unlinked list
- Disable noattr2/attr2 mount options when CRCs are enabled
- Bump the limitation of ACL entries for v5 superblocks"
* tag 'for-linus-v3.10-rc5' of git://oss.sgi.com/xfs/xfs:
xfs: increase number of ACL entries for V5 superblocks
xfs: disable noattr2/attr2 mount options for CRC enabled filesystems
xfs: inode unlinked list needs to recalculate the inode CRC
xfs: fix log recovery transaction item reordering
xfs: fix remote attribute invalidation for a leaf
xfs: rework dquot CRCs
I broke them in this commit:
commit 1be374a051
Author: Andy Lutomirski <luto@amacapital.net>
Date: Wed May 22 14:07:44 2013 -0700
net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
This patch adds __sys_sendmsg and __sys_sendmsg as common helpers that accept
MSG_CMSG_COMPAT and blocks MSG_CMSG_COMPAT at the syscall entrypoints. It
also reverts some unnecessary checks in sys_socketcall.
Apparently I was suffering from underscore blindness the first time around.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Tested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Per some ZTE Linux drivers I found for the AC2716, the following patch
moves most ZTE CDMA devices from option to zte_ev. The blacklist stuff
that option does is not required with zte_ev, because it doesn't
implement any of the send_setup hooks which the blacklist suppressed.
I did not move the 2718 over because I could not find any ZTE Linux
drivers for that device, nor even any Windows drivers.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The mode used by Windows for the Huawei E1820 will use the
same ff/ff/ff class codes for both serial and network
functions.
Reported-by: Graham Inggs <graham.inggs@uct.ac.za>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When configuring the port (e.g. set_termios) the port minor number
rather than the port number was used in the request (and they only
coincide for minor number 0).
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The limit of 25 ACL entries is arbitrary, but baked into the on-disk
format. For version 5 superblocks, increase it to the maximum nuber
of ACLs that can fit into a single xattr.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Mark Tinguely <tinuguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit 5c87d4bc1a)
attr2 format is always enabled for v5 superblock filesystems, so the
mount options to enable or disable it need to be cause mount errors.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit d3eaace84e)
The inode unlinked list manipulations operate directly on the inode
buffer, and so bypass the inode CRC calculation mechanisms. Hence an
inode on the unlinked list has an invalid CRC. Fix this by
recalculating the CRC whenever we modify an unlinked list pointer in
an inode, ncluding during log recovery. This is trivial to do and
results in unlinked list operations always leaving a consistent
inode in the buffer.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit 0a32c26e72)
There are several constraints that inode allocation and unlink
logging impose on log recovery. These all stem from the fact that
inode alloc/unlink are logged in buffers, but all other inode
changes are logged in inode items. Hence there are ordering
constraints that recovery must follow to ensure the correct result
occurs.
As it turns out, this ordering has been working mostly by chance
than good management. The existing code moves all buffers except
cancelled buffers to the head of the list, and everything else to
the tail of the list. The problem with this is that is interleaves
inode items with the buffer cancellation items, and hence whether
the inode item in an cancelled buffer gets replayed is essentially
left to chance.
Further, this ordering causes problems for log recovery when inode
CRCs are enabled. It typically replays the inode unlink buffer long before
it replays the inode core changes, and so the CRC recorded in an
unlink buffer is going to be invalid and hence any attempt to
validate the inode in the buffer is going to fail. Hence we really
need to enforce the ordering that the inode alloc/unlink code has
expected log recovery to have since inode chunk de-allocation was
introduced back in 2003...
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit a775ad7780)
When invalidating an attribute leaf block block, there might be
remote attributes that it points to. With the recent rework of the
remote attribute format, we have to make sure we calculate the
length of the attribute correctly. We aren't doing that in
xfs_attr3_leaf_inactive(), so fix it.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Mark Tinguely <tinuguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit 59913f14df)
Calculating dquot CRCs when the backing buffer is written back just
doesn't work reliably. There are several places which manipulate
dquots directly in the buffers, and they don't calculate CRCs
appropriately, nor do they always set the buffer up to calculate
CRCs appropriately.
Firstly, if we log a dquot buffer (e.g. during allocation) it gets
logged without valid CRC, and so on recovery we end up with a dquot
that is not valid.
Secondly, if we recover/repair a dquot, we don't have a verifier
attached to the buffer and hence CRCs are not calculated on the way
down to disk.
Thirdly, calculating the CRC after we've changed the contents means
that if we re-read the dquot from the buffer, we cannot verify the
contents of the dquot are valid, as the CRC is invalid.
So, to avoid all the dquot CRC errors that are being detected by the
read verifier, change to using the same model as for inodes. That
is, dquot CRCs are calculated and written to the backing buffer at
the time the dquot is flushed to the backing buffer. If we modify
the dquot directly in the backing buffer, calculate the CRC
immediately after the modification is complete. Hence the dquot in
the on-disk buffer should always have a valid CRC.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit 6fcdc59de2)
Since the introduction of preemptible mmu_gather TLB fast mode has been
broken. TLB fast mode relies on there being absolutely no concurrency;
it frees pages first and invalidates TLBs later.
However now we can get concurrency and stuff goes *bang*.
This patch removes all tlb_fast_mode() code; it was found the better
option vs trying to patch the hole by entangling tlb invalidation with
the scheduler.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Reported-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull kbuild fixes from Michal Marek:
"There is one fix for a kbuild regression, plus three kconfig fixes for
bugs that have alway been there, but are simple enough to be fixed in
an -rc"
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kconfig/menu.c: fix multiple references to expressions in menu_add_prop()
mconf: handle keys in empty dialogs
kbuild: Don't assume dts files live in arch/*/boot/dts
scripts/config: fix assignment of parameters for short version of --*-after options
f9a37be0f0 ("x86: Use PCI setup data") added support for using PCI ROM
images from setup_data. This used phys_to_virt(), which is not valid for
highmem addresses, and can cause a crash when booting a 32-bit kernel via
the EFI boot stub.
pcibios_add_device() assumes that the physical addresses stored in
setup_data are accessible via the direct kernel mapping, and that calling
phys_to_virt() is valid. This isn't guaranteed to be true on x86 where the
direct mapping range is much smaller than on x86-64.
Calling phys_to_virt() on a highmem address results in the following:
BUG: unable to handle kernel paging request at 39a3c198
IP: [<c262be0f>] pcibios_add_device+0x2f/0x90
...
Call Trace:
[<c2370c73>] pci_device_add+0xe3/0x130
[<c274640b>] pci_scan_single_device+0x8b/0xb0
[<c2370d08>] pci_scan_slot+0x48/0x100
[<c2371904>] pci_scan_child_bus+0x24/0xc0
[<c262a7b0>] pci_acpi_scan_root+0x2c0/0x490
[<c23b7203>] acpi_pci_root_add+0x312/0x42f
...
The solution is to use ioremap() instead of phys_to_virt() to map the
setup data into the kernel address space.
[bhelgaas: changelog]
Tested-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Seth Forshee <seth.forshee@canonical.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@vger.kernel.org # v3.8+
Fix regression introduced by commit 143d9d9616 ("USB: serial: add
tiocmiwait subdriver operation") which made the ioctl operation return
ENODEV rather than ENOIOCTLCMD when a subdriver TIOCMIWAIT
implementation is missing.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
devtmpfs_delete_node() calls devnode() callback with mode==NULL but
vfio still tries to write there.
The patch fixes this.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
clk_set_rate() isn't supposed to accept approximate frequencies, instead
a supported frequency should be obtained from clk_round_rate() and then
used to set the clock.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
With the introduction of ACPI scan handlers, an ACPI device object
with an ACPI scan handler attached to it must not be bound to an ACPI
driver any more. Therefore it doesn't make sense to match those
ACPI device objects against a newly registered ACPI driver in
acpi_bus_match(), so make that function return 0 if the device
object passed to it has an ACPI scan handler attached.
This also addresses a regression related to a broken ACPI table in
the BIOS, where it has defined a _ROM method under the PCI root
bridge object. This causes the video module to treat that object
as a display controller device (since only display devices are
supposed to have a _ROM method defined according to the ACPI spec).
As a result, the ACPI video driver binds to the PCI root bridge
object and overwrites the previously assigned driver_data field of
it, causing subsequent calls to acpi_get_pci_dev() to fail.
[rjw: Subject and changelog]
References: https://bugzilla.kernel.org/show_bug.cgi?id=58091
Reported-by: Jason Cassell <bluesloth600@gmail.com>
Reported-and-bisected-by: Dmitry S. Demin <dmitryy.demin@gmail.com>
Cc: 3.9+ <stable@kernel.org>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Fix to return a negative error code in the acpi_gsi_to_irq() and
request_irq() error handling case instead of 0, as done elsewhere
in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit 4b31e774 (Always set P-state on initialization) fixed bug
#4634 and caused the driver to always set the target P-State at
least once since the initial P-State may not be the desired one.
Commit 5a1c0228 (cpufreq: Avoid calling cpufreq driver's target()
routine if target_freq == policy->cur) caused a regression in
this behavior.
This fixes the regression by setting policy->cur based on the CPU's
target frequency rather than the CPU's current reported frequency
(which may be different). This means that the P-State will be set
initially if the CPU's target frequency is different from the
governor's target frequency.
This fixes an issue where setting the default governor to
performance wouldn't correctly enable turbo mode on all cores.
Signed-off-by: Ross Lagerwall <rosslagerwall@gmail.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 3.8+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull networking fixes from David Miller:
1) Fix timeouts with direct mode authentication in mac80211, from
Stanislaw Gruszka.
2) Aggregation sessions can deadlock in ath9k, from Felix Fietkau.
3) Netfilter's xt_addrtype doesn't work with ipv6 due to route lookups
creating undesirable cache entries, from Florian Westphal.
4) Fix netfilter's ipt_ULOG from generating non-NULL terminated
strings.
5) Fix netdev transmit queue crashes in mac80211, from Johannes Berg.
6) Fix copy and paste error in 802.11 stack that broke reporting of
64-bit station tx statistics, from Felix Fietkau.
7) When qlge_probe fails, it leaks the netdev. Fix from Wei Yongjun.
8) SKB control block (where we store the IP options information,
amongst other things) must be cleared properly otherwise ICMP
sending can crash for IP tunnels. Fix from Eric Dumazet.
9) Verification of Energy Efficient Ether support was coded wrongly,
the test was inversed. Fix from Giuseppe CAVALLARO.
10) TCP handles redirects improperly because the wrong flow key is used
for the route lookup. From Michal Kubecek.
11) Don't interpret MSG_CMSG_COMPAT from userspace, fix from Andy
Lutomirski.
12) The new AF_VSOCK was missing from the lockdep string table, fix from
Federico Vaga.
13) be2net doesn't handle checksumming of IP fragments properly, from
Somnath Kotur.
14) Fix several bugs in the device address list code that lead to
crashes and other misbehaviors. From Jay Vosburgh.
15) Fix ipv6 segmentation handling of fragmented GRE tunnel traffic,
from Pravin B Shalr.
16) Fix usage of stale policies in IPSEC layer, from Paul Moore.
17) Fix team driver dump of ports when there are a large number of them,
from Jiri Pirko.
18) Fix softlockups in UDP ipv4 socket lookup causes by and error in the
hlist_nulls_for_each_entry_rcu() macro. From Eric Dumazet.
19) Fix several regressions added by the high rate accuracy changes to
the htb packet scheduler. From Eric Dumazet.
20) Fix DMA'ing onto the stack in esd_usb2 and peak_usb CAN drivers,
from Olivier Sobrie and Marc Kleine-Budde.
21) Fix unremovable network devices due to missing route pointer
installation in the per-device ipv6 address list entries. From Gao
feng.
22) Apply the tg3 5719 DMA workaround on 5720 chips as well, otherwise
we get stalls. From Nithin Sujir.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (68 commits)
net_sched: htb: do not mix 1ns and 64ns time units
net: fix sk_buff head without data area
tg3: Add read dma workaround for 5720
net: ethernet: xilinx_emaclite: set protocol selector bits when writing ANAR
bnx2x: Fix bridged GSO for 57710/57711 chips
net: fec: add fallback to random MAC address
bnx2x: fix TCP offload for tunneling ipv4 over ipv6
ipv6: assign rt6_info to inet6_ifaddr in init_loopback
net/mlx4_core: Keep VF assigned MAC in the PF admin table
net/mlx4_en: Handle unassigned VF MAC address correctly
net/mlx4_core: Return -EPROBE_DEFER when a VF is probed before PF is sufficiently initialized
net/mlx4_en: Fix adaptive moderation cq update
net: can: peak_usb: Do not do dma on the stack
net: can: esd_usb2: Do not do dma on the stack
net: can: kvaser_usb: fix reception on "USBcan Pro" and "USBcan R" type hardware.
net_sched: restore "overhead xxx" handling
net: force a reload of first item in hlist_nulls_for_each_entry_rcu
hyperv: Fix vlan_proto setting in netvsc_recv_callback()
team: fix port list dump for big number of ports
list: introduce list_first_entry_or_null
...
Error out of ecryptfs_fsync() if filemap_write_and_wait() fails.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Cc: Paul Taysom <taysom@chromium.org>
Cc: Olof Johansson <olofj@chromium.org>
Cc: stable@vger.kernel.org # v3.6+
Matthew Wilcox