Commit graph

435,212 commits

Author SHA1 Message Date
Gulsah Kose
a53b74d7e1 staging: rts5208: Fix line over 80 characters.
Fix checkpatch.pl issues with line over 80 characters in rtsx.c

Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 17:36:46 -07:00
Andreea-Cristina Bernat
774448dc60 staging: rtl8712: Delete space before semicolon
This patch solves the warning: "space prohibited before semicolon".

Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 17:36:40 -07:00
Himangi Saraogi
983b412231 staging:rtl8187se: Fix sparse warning in right shift
This patch fixes the following sparse warning:
drivers/staging/rtl8187se/r8180_core.c:1328:40: warning: right shift by bigger than source value
by adding parenthesis.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 17:33:01 -07:00
Andreea-Cristina Bernat
74f161f619 /staging/vt6656: Delete extra paranthesis from macro definition
This patch solves the error of checkpatch.pl by deleting the extra paranthesis.

Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 17:30:22 -07:00
Himangi Saraogi
72dbeaf589 staging:rtl8187se:ieee80211: Fix sparse warning of cast to restricted __le16
This patch fixes the following sparse warnings:
drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c:496:17: warning: cast to restricted __le16
drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c:540:12: warning: cast to restricted __le16
drivers/staging/rtl8187se/ieee80211/ieee80211_crypt_tkip.c:586:12: warning: cast to restricted __le16

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Reviewed-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 17:28:31 -07:00
Elena Oat
160eaf20a8 Staging: rtl8188eu: Fix sparse warnings.
This patch fixes following warnings produced by sparse:

drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3867:31:    expected void
const *<noident>
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3867:31:    got void
[noderef] <asn:1>*pointer
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3869:38: warning:
incorrect type in argument 1 (different address spaces)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3869:38:    expected void
const *<noident>
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3869:38:    got void
[noderef] <asn:1>*pointer
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3871:38: warning:
incorrect type in argument 1 (different address spaces)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3871:38:    expected void
const *<noident>
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3871:38:    got void
[noderef] <asn:1>*pointer
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3873:38: warning:
incorrect type in argument 1 (different address spaces)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3873:38:    expected void
const *<noident>
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3873:38:    got void
[noderef] <asn:1>*pointer
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3875:38: warning:
incorrect type in argument 1 (different address spaces)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3875:38:    expected void
const *<noident>
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3875:38:    got void
[noderef] <asn:1>*pointer
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3878:38: warning:
incorrect type in argument 1 (different address spaces)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3878:38:    expected void
const *<noident>
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3878:38:    got void
[noderef] <asn:1>*pointer
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3880:38: warning:
incorrect type in argument 1 (different address spaces)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3880:38:    expected void
const *<noident>
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3880:38:    got void
[noderef] <asn:1>*pointer
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3883:38: warning:
incorrect type in argument 1 (different address spaces)
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3883:38:    expected void const *<noident>
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3883:38:    got void
[noderef] <asn:1>*pointer
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:3897:9: warning: cast
removes address space of expression

While at it, I have also fixed the warnings of lines over 80 characters.

Signed-off-by: Elena Oat <oat.elena@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:49:19 -07:00
Gulsah Kose
34a2c5fe5b staging: rtl8712: Remove unnecessary parentheses.
Remove unnecessary parentheses from rtl871x_cmd.c

Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:49:16 -07:00
Iulia Manda
56116b2b09 staging: unisys: visorutil: Use kzalloc instead of kmalloc with memset
Fix coccinelle warnings of better allocation by using kzalloc.
In these cases, kzalloc is preferred, as kmalloc may fail if it does not find
contiguous memory.

Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Acked-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:49:02 -07:00
Iulia Manda
464a5028ea staging: android: ion: Use ERR_CAST instead of ERR_PTR
Fix the following coccinelle warnings in ion.c:
drivers/staging/android/ion/ion.c:511:9-16: WARNING: ERR_CAST can be used with buffer
drivers/staging/android/ion/ion.c:218:9-16: WARNING: ERR_CAST can be used with table
drivers/staging/android/ion/ion.c:1150:9-16: WARNING: ERR_CAST can be used with dmabuf

Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:34:02 -07:00
Iulia Manda
164ad86d33 staging: android: ion: Replace seq_printf with seq_puts
It is preferred to use seq_puts instead of seq_printf here, as it suffices string printing.

Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:33:54 -07:00
Iulia Manda
7287bb5258 staging: android: ion: Fix quoted string split across lines
Join strings from two separated lines, even if this makes line longer than 80
characters.

Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:33:43 -07:00
Kristina Martšenko
b812982e6b staging: rtl8188eu: explicitly convert from __le16 to integer
BA_para_set (of type __le16) is implicitly cast into an integer for
bitwise operations, after which the result is converted back into a
__le16. Make the initial cast explicit to make the code clearer. In
addition, refactor the code for readability.

This also removes five sparse warnings of the following type:
drivers/staging/rtl8188eu//core/rtw_mlme_ext.c:6114:70: warning: restricted __le16 degrades to integer

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:24:19 -07:00
Andreea-Cristina Bernat
17e65fbbe2 staging/media/solo6x10: Fix coding-style error
This patch fixes the error "space required after that ';'" for
the file /drivers/staging/media/solo6x10/solo6x10-tx28.c

Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:21:12 -07:00
Ashley Smith
042bdadb85 staging: vt6655 : Fix placement of open brace
This patch fixes the checkpatch warning "that open brace { should be on
the previous line" for a non-function statement block.

Signed-off-by: Ashley Smith <ashley@eclipso.ch>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:20:58 -07:00
Andy Lutomirski
7dda038756 x86_32, mm: Remove user bit from identity map PDE
The only reason that the user bit was set was to support userspace
access to the compat vDSO in the fixmap.  The compat vDSO is gone,
so the user bit can be removed.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Link: http://lkml.kernel.org/r/e240a977f3c7cbd525a091fd6521499ec4b8e94f.1394751608.git.luto@amacapital.net
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-13 16:20:17 -07:00
Andy Lutomirski
b0b49f2673 x86, vdso: Remove compat vdso support
The compat vDSO is a complicated hack that's needed to maintain
compatibility with a small range of glibc versions.

This removes it and replaces it with a much simpler hack: a config
option to disable the 32-bit vDSO by default.

This also changes the default value of CONFIG_COMPAT_VDSO to n --
users configuring kernels from scratch almost certainly want that
choice.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Link: http://lkml.kernel.org/r/4bb4690899106eb11430b1186d5cc66ca9d1660c.1394751608.git.luto@amacapital.net
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-13 16:20:09 -07:00
Iulia Manda
0469c7471e Staging: dgnc: fix indentation in dgnc_mgmt.c
Align test parts in if statement on separate lines.

Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:17:59 -07:00
Himangi Saraogi
639296ba38 staging:cxt1e1:remove unused code with #if 0
The functions musycc_del_chan and musycc_del_chan_stats
are not being used at the moment and may not be required.
Remove them for now (with #if 0) till it is decided whether
it is really required.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:06:39 -07:00
Elena Oat
2a8efee2c7 Staging: rtl8188eu: Fix warning of unchecked sscanf return value.
This patch fixes the warnings produced by checkpatch "unchecked sscanf
return value" in file ioctl_linux.c.

Signed-off-by: Elena Oat <oat.elena@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 16:06:31 -07:00
Ana Rey
e03b52b5c9 staging: rtl8187se: Fix braces in ieee80211/ieee80211_crypt_tkip.c
This patch fixes braces errors as the codingStyle of the kernel
recommends.

Thus, this patch fixes these errors and warning messages found by
checkpatch.pl:
WARNING: braces {} are not necessary for single statement blocks
ERROR: that open brace { should be on the previous line

Signed-off-by: Ana Rey <anarey@gmail.com>
Reviewed-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:58:49 -07:00
Ana Rey
1a2a30029e staging: rtl8187se: Fix whitespaces in ieee80211/ieee80211_crypt_tkip.c
This patch fixes whitespaces as the codingStyle of the kernel
recommends.

Thus, this patch fixes these errors found by checkpatch.pl:

ERROR: space required before the open parenthesis '('
ERROR: space required before that '*' (ctx:OxV)
ERROR: spaces required around that '=' (ctx:VxW)

Signed-off-by: Ana Rey <anarey@gmail.com>
Reviewed-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:58:49 -07:00
H. Peter Anvin
0b131be8d4 x86, intel: Make MSR_IA32_MISC_ENABLE bit constants systematic
Replace somewhat arbitrary constants for bits in MSR_IA32_MISC_ENABLE
with verbose but systematic ones.  Add _BIT defines for all the rest
of them, too.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-13 15:55:46 -07:00
Ana Rey
7758a3a9e2 staging: rtl8187se: Deleted rtl8225z2_rf_set_mode function
After the next warning messages by sparse tools:

drivers/staging/rtl8187se/r8180_rtl8225z2.c:609:6: warning: symbol 'rtl8225z2_rf_set_mode' was not declared. Should it be static?
drivers/staging/rtl8187se/r8180_rtl8225z2.c:609:13: warning: ‘rtl8225z2_rf_set_mode’ defined but not used [-Wunused-function]
 static void rtl8225z2_rf_set_mode(struct net_device *dev)

And the next search:
~/opw/dev/staging/drivers/staging/rtl8187se
 (staging-next) $ git grep rtl8225z2_rf_set_mode
r8180_rtl8225z2.c:void rtl8225z2_rf_set_mode(struct net_device *dev)

I decided to delete rtl8225z2_rf_set_mode function.

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:52:14 -07:00
Ana Rey
24dd8e7fd9 staging: rtl8187se: Delete commented code in r8180.h
This patch deletes all commented code in r8180.h that is not necessary.

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:49:55 -07:00
Ana Rey
428bd7df5d staging: rtl8187se: Convert _RT_PS_MODE typedef into an enum
The Documentation/CodingStyle doesn't recommend the use of typedef,
convert this into an enum.

While at it, I have also renamed the variable names that were used in
this typedef not to use Hungarian notation.

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:49:55 -07:00
Ana Rey
8dc1c48bca staging: rtl8187se: Delete typedef _LED_CTL_MODE
The typedef _LED_CTL_MODE (and the enum constants) is not used in the driver.
 I delete it.

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:49:55 -07:00
Himangi Saraogi
7ad8257234 staging:wlan-ng:Fix sparse warning
This patch fixes the sparse warning -
drivers/staging/wlan-ng/p80211netdev.c:289:38: warning: cast to restricted __le16
by eliminating the variable fc as it is not required.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
2014-03-13 15:46:09 -07:00
Ana Rey
c0cfe01fbc staging: rtl8187se: Convert _RT_RF_POWER_STATE typedef into an enum
The Documentation/CodingStyle doesn't recommend the use of typedef,
convert this to an enum.

While at it, I have also renamed the variable names that were used in
this typedef not to use Hungarian notation.

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:41:43 -07:00
Ana Rey
8a8ec80643 staging: rtl8187se: Convert _LED_STRATEGY_8185 typedef into an enum
The Documentation/CodingStyle doesn't recommend the use of typedef,
convert this into an enum.

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:41:43 -07:00
Ana Rey
2ebdad626d staging: rtl8187se: Convert nic_t typedef into an enum
The Documentation/CodingStyle doesn't recommend the use of typedef,
convert this to enum.

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:41:43 -07:00
Ana Rey
066ad08efe staging: rtl8187se: Convert _WIRELESS_MODE into a enum.
The Documentation/CodingStyle doesn't recommend the use of typedef,
convert this to enum.

While at it, I have also renamed the variable names that were used in
this typedef not to use Hungarian notation.

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
2014-03-13 15:41:42 -07:00
Borislav Petkov
c0a639ad0b x86, Intel: Convert to the new bit access MSR accessors
... and save some lines of code.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1394384725-10796-4-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-13 15:35:09 -07:00
Borislav Petkov
8f86a7373a x86, AMD: Convert to the new bit access MSR accessors
... and save us a bunch of code.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1394384725-10796-3-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-13 15:35:03 -07:00
Borislav Petkov
22085a66c2 x86: Add another set of MSR accessor functions
We very often need to set or clear a bit in an MSR as a result of doing
some sort of a hardware configuration. Add generic versions of that
repeated functionality in order to save us a bunch of duplicated code in
the early CPU vendor detection/config code.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1394384725-10796-2-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-13 15:34:45 -07:00
Borislav Petkov
b82ad3d394 x86, pageattr: Correct WBINVD spelling in comment
It is WBINVD, for INValiDate and not "wbindv". Use caps for instruction
names, while at it.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1394633584-5509-4-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-13 15:32:45 -07:00
Borislav Petkov
5314feebab x86, crash: Unify ifdef
Merge two back-to-back CONFIG_X86_32 ifdefs into one.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1394633584-5509-3-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-13 15:32:44 -07:00
Borislav Petkov
3e920b532a x86, boot: Correct max ramdisk size name
The name in struct bootparam is ->initrd_addr_max and not ramdisk_max.
Fix that.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1394633584-5509-2-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-13 15:32:42 -07:00
Sam Bradshaw
5eb9291c36 mtip32xx: mtip_async_complete() bug fixes
This patch fixes 2 issues in the fast completion path:
1) Possible double completions / double dma_unmap_sg() calls due to lack
of atomicity in the check and subsequent dereference of the upper layer
callback function. Fixed with cmpxchg before unmap and callback.
2) Regression in unaligned IO constraining workaround for p420m devices.
Fixed by checking if IO is unaligned and using proper semaphore if so.

Signed-off-by: Sam Bradshaw <sbradshaw@micron.com>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-13 15:59:09 -06:00
Krzysztof Kozlowski
72a6a5df2c regmap: irq: Set data pointer only on regmap_add_irq_chip success
After setting the 'data' pointer (wchich is returned to the caller for
freeing later) the regmap_add_irq_chip() could still fail for various
reasons (ENOMEM, regmap_read or regmap_write failure). In such case the
memory under 'data' was freed in error path and error value was returned
but the 'data' variable was not changed.

This could lead to errors if the caller passed such 'data' to
regmap_del_irq_chip().

The 'data' pointer should be changed atomically from the caller
perspective - set it only on regmap_add_irq_chip() success.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-03-13 21:47:36 +00:00
Richard Weinberger
62c19c9d29 i2c: Remove usage of orphaned symbol OF_I2C
The symbol is an orphan, don't depend on it anymore.

Signed-off-by: Richard Weinberger <richard@nod.at>
[wsa: enhanced commit message]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fixes: 687b81d083 (i2c: move OF helpers into the core)
Cc: stable@kernel.org
2014-03-13 22:33:44 +01:00
Rafael J. Wysocki
d5af40d6b3 Merge branches 'pnp', 'acpi-init', 'acpi-sleep' and 'pm-cpufreq'
* pnp:
  PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures

* acpi-init:
  ACPI / init: Invoke early ACPI initialization later

* acpi-sleep:
  ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep states

* pm-cpufreq:
  cpufreq: Skip current frequency initialization for ->setpolicy drivers
2014-03-13 22:12:30 +01:00
Rafael J. Wysocki
a4e90bed51 ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep states
If the HW Reduced ACPI mode bit is set in the FADT, ACPICA uses
the optional sleep control and sleep status registers for making
the system enter sleep states (including S5), so it is not possible
to use system sleep states or power it off using ACPI if the HW
Reduced ACPI mode bit is set and those registers are not available.

For this reason, add a new function, acpi_sleep_state_supported(),
checking if the HW Reduced ACPI mode bit is set and whether or not
system sleep states are usable in that case in addition to checking
the return value of acpi_get_sleep_type_data() and make the ACPI
sleep setup routines use that function to check the availability of
system sleep states.

Among other things, this prevents the kernel from attempting to
use ACPI for powering off HW Reduced ACPI systems without the sleep
control and sleep status registers, because ACPI power off doesn't
have a chance to work on them.  That allows alternative power off
mechanisms that may actually work to be used on those systems.  The
affected machines include Dell Venue 8 Pro, Asus T100TA, Haswell
Desktop SDP and Ivy Bridge EP Demo depot.

References: https://bugzilla.kernel.org/show_bug.cgi?id=70931
Reported-by: Adam Williamson <awilliam@redhat.com>
Tested-by: Aubrey Li <aubrey.li@linux.intel.com>
Cc: 3.4+ <stable@vger.kernel.org> # 3.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-13 22:11:39 +01:00
Felipe Franciosi
368c89d7ac mtip32xx: Unmap the DMA segments before completing the IO request
If the buffers are unmapped after completing a request, then stale data
might be in the request.

Signed-off-by: Felipe Franciosi <felipe@paradoxo.org>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-13 14:56:39 -06:00
Felipe Franciosi
1044b1bb92 mtip32xx: Set queue bounce limit
We need to set the queue bounce limit during the device initialization to
prevent excessive bouncing on 32 bit architectures.

Signed-off-by: Felipe Franciosi <felipe@paradoxo.org>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-13 14:56:39 -06:00
Alexander Gordeev
be577fabf3 nvme: Use pci_enable_msi_range() and pci_enable_msix_range()
As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-nvme@lists.infradead.org
Cc: linux-pci@vger.kernel.org
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-13 14:56:39 -06:00
Alexander Gordeev
371ff93a72 cciss: Fallback to MSI rather than to INTx if MSI-X failed
Currently the driver falls back to INTx mode when MSI-X
initialization failed. This is a suboptimal behaviour
for chips that also support MSI. This update changes that
behaviour and falls back to MSI mode in case MSI-X mode
initialization failed.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Mike Miller <mike.miller@hp.com>
Cc: iss_storagedev@hp.com
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-pci@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-13 14:56:39 -06:00
Arnd Bergmann
106fd892bc swim3: fix interruptible_sleep_on race
interruptible_sleep_on is racy and going away. This replaces the one
caller in the swim3 driver with the equivalent race-free
wait_event_interruptible call. Since we're here already, this
also fixes the case where we get interrupted from atomic context,
which used to just spin in the loop.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-13 14:56:38 -06:00
Arnd Bergmann
7b8a3d22ba ataflop: fix sleep_on races
sleep_on() is inherently racy, and has been deprecated for a long time.
This fixes two instances in the atari floppy driver:

* fdc_wait/fdc_busy becomes an open-coded mutex. We cannot use the
  regular mutex since it gets released in interrupt context. The
  open-coded version using wait_event() and cmpxchg() is equivalent
  to the existing code but does the checks atomically, and we can
  now safely check the condition with irqs enabled.

* format_wait becomes a completion, which is the natural structure
  here. The format ioctl waits for the background task to either
  complete or abort.

This does not attempt to fix the preexisting bug of calling schedule
with local interrupts disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-13 14:56:38 -06:00
Arnd Bergmann
9c552e1ddd DAC960: remove sleep_on usage
sleep_on and its variants are going away. The use of sleep_on() in
DAC960_V2_ExecuteUserCommand seems to be bogus because the command
by the time we get there, the command has completed already and
we just enter the timeout. Based on this interpretation, I concluded
that we can replace it with a simple msleep(1000) and rearrange the
code around it slightly.

The interruptible_sleep_on_timeout in DAC960_gam_ioctl seems equivalent
to the race-free version using wait_event_interruptible_timeout.
I left the driver to return -EINTR rather than -ERESTARTSYS to preserve
the timeout behavior.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-13 14:56:38 -06:00
Alexander Gordeev
c94efe36e2 mtip32xx: Use pci_enable_msi() instead of pci_enable_msi_range()
Commit "mtip32xx: Use pci_enable_msix_range() instead of
pci_enable_msix()" was unnecessary, since pci_enable_msi()
function is not deprecated and is still preferable for
enabling the single MSI mode. This update reverts usage of
pci_enable_msi() function.

Besides, the changelog for that commit was bogus, since
mtip32xx driver uses MSI interrupt, not MSI-X.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Asai Thambi S P <asamymuthupa@micron.com>
Cc: linux-pci@vger.kernel.org

Signed-off-by: Jens Axboe <axboe@fb.com>
2014-03-13 14:56:38 -06:00