devm_ioremap_resource returns an ERR_PTR value, not NULL, on failure.
Furthermore, the value returned by devm_ioremap_resource should be tested.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression e,e1;
statement S;
@@
*e = devm_ioremap_resource(...);
if (!e1) S
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If NO_DMA=y:
drivers/built-in.o: In function `net2272_done':
drivers/usb/gadget/net2272.c:386: undefined reference to `usb_gadget_unmap_request'
drivers/built-in.o: In function `net2272_queue':
drivers/usb/gadget/net2272.c:848: undefined reference to `usb_gadget_map_request'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If NO_DMA=y:
drivers/built-in.o: In function `sudmac_free_channel':
drivers/usb/gadget/r8a66597-udc.c:676: undefined reference to `usb_gadget_unmap_request'
drivers/built-in.o: In function `sudmac_alloc_channel':
drivers/usb/gadget/r8a66597-udc.c:666: undefined reference to `usb_gadget_map_request'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If NO_DMA=y:
drivers/built-in.o: In function `fusb300_set_idma':
drivers/usb/gadget/fusb300_udc.c:946: undefined reference to `usb_gadget_map_request'
drivers/usb/gadget/fusb300_udc.c:958: undefined reference to `usb_gadget_unmap_request'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Since commit 511f3c53 (usb: gadget: udc-core: fix a regression during
gadget driver unbinding) usb_gadget_remove_driver will pass NULL for
the driver argument.
Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add the missing unlock before return from function cppi41_dma_callback()
in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Before Randy figures out that this does not compile with CONFIG_BUG=n
here is a fix for it.
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Randy reported this
|drivers/usb/phy/phy-am335x-control.c:45:3: error: implicit declaration
|of function '__WARN' [-Werror=implicit-function-declaration]
and left it as an excercice to figure out that this happens only with
CONFIG_BUG=n. As a fix I replace it with WARN_ON(). And there is a space
before return so fix this, too.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Since dma_map_single() may fail it is good to actually check the return
code to see if it succeeded.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If usb_add_function() fails then the currently processed function
is already not in the list in struct config_usb_cfg, and neither is it
in the list in struct usb_configuration. At the err_purge_funcs label the
purge_config_funcs() is called, which iterates over all configurations,
and in each configuration it iterates over all _successfully_ added
functions, and moves them back from the list in struct usb_configuration
to the list in struct config_usb_cfg. BUT the function which has just
failed adding and caused the unwind process is not taken care of and
is effectively lost.
This patch modifies the configfs_composite_bind() function so that if
the usb_add_function() fails, then the currently processed function
is returned to the list in struct config_usb_cfg.
It would be tempting to delay the list_del() in question after
usb_add_function() invocation, but a struct list_head (&f->list) cannot be
stored in more than one list at the same time, so the list_del() must
be called before usb_add_function(). Hence, the solution is to list_add()
after usb_add_function() in case of error.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Since commit 82dc3c63 ("net: introduce NAPI_POLL_WEIGHT")
netif_napi_add() produces an error message if a NAPI poll weight
greater than 64 is requested.
GELIC_NET_NAPI_WEIGHT is defined to GELIC_NET_RX_DESCRIPTORS,
which is 128.
Use the standard NAPI weight.
v2: proper reference to the related commit
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 82dc3c63 ("net: introduce NAPI_POLL_WEIGHT")
netif_napi_add() produces an error message if a NAPI poll weight
greater than 64 is requested.
Use the standard NAPI weight.
v2: proper reference to the related commit
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 82dc3c63 ("net: introduce NAPI_POLL_WEIGHT")
netif_napi_add() produces an error message if a NAPI poll weight
greater than 64 is requested.
jme requests a quarter of the rx ring size as the NAPI weight.
jme's rx ring size is 1 << 9 = 512.
Use the standard NAPI weight.
v2: proper reference to the related commit
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All other PCIe capability register fields include "PCI_EXP" + <reg-name> +
<field-name>. This renames PCI_EXP_OBFF_MASK, PCI_EXP_IDO_REQ_EN,
PCI_EXP_LTR_EN, and related fields using the same convention.
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com> # for MFD driver
ca8bdcaff0 ("cgroup: make cgroup_css() take cgroup_subsys * instead
and allow NULL subsys") missed one conversion in css_from_id(), which
was newly added. As css_from_id() doesn't have any user yet, this
doesn't break anything other than generating a build warning.
Convert it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
The ata_dev_acpi_handle is defined in libata-acpi.c and the only
external user is libata-zpodd.c, which is built when CONFIG_ATA_ACPI
is set, so there is no need to make an empty stub function for
ONFIG_ATA_ACPI case in libata.h. It also causes compile errors due to
acpi_handle is not defined when !CONFIG_ACPI. This patch fixes this
problem by removing the empty stub.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
nsproxy.pid_ns is *not* the task's pid namespace. The name should clarify
that.
This makes it more obvious that setns on a pid namespace is weird --
it won't change the pid namespace shown in procfs.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is a security bug.
The follow-up will fix nsproxy to discourage this type of issue from
happening again.
Cc: stable@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is needed to fix the build on sh systems.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Two changes here:
- Fix a bug in the rbtree code which could cause it to create two
different cache entries for the same register by adding a single
register at a time to the cache. This isn't awesome for performance
but it's non-invasive which we need for this late in the release
cycle and the I/O costs we're trying to avoid are high.
- Add another header used in the !CONFIG_REGMAP stubs where we had been
relying on implicit inclusion.
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Merge tag 'regmap-v3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"Two changes here:
- Fix a bug in the rbtree code which could cause it to create two
different cache entries for the same register by adding a single
register at a time to the cache. This isn't awesome for
performance but it's non-invasive which we need for this late in
the release cycle and the I/O costs we're trying to avoid are high.
- Add another header used in the !CONFIG_REGMAP stubs where we had
been relying on implicit inclusion"
* tag 'regmap-v3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: rbtree: Fix overlapping rbnodes.
regmap: Add another missing header for !CONFIG_REGMAP stubs
Pull powerpc fixes from Ben Herrenschmidt:
"Here are 3 bug fixes that should probably go into 3.11 since I'm also
tagging them for stable.
Once fixes our old /proc/powerpc/lparcfg file which provides partition
informations when running under our hypervisor and also acts as a
user-triggerable Oops when hot :-(
The other two respectively are a one liner to fix a HVSI protocol
handshake problem causing the console to fail to show up on a bunch of
machines until we reach userspace, which I deem annoying enough to
warrant going to stable, and a nasty gcc miscompile causing us to pass
virtual instead of physical addresses to the firmware under some
circumstances"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/hvsi: Increase handshake timeout from 200ms to 400ms.
powerpc: Work around gcc miscompilation of __pa() on 64-bit
powerpc: Don't Oops when accessing /proc/powerpc/lparcfg without hypervisor
Dave reported corrupted swap entries
| [ 4588.541886] swap_free: Unused swap offset entry 00002d15
| [ 4588.541952] BUG: Bad page map in process trinity-kid12 pte:005a2a80 pmd:22c01f067
and Hugh pointed that in move_ptes _PAGE_SOFT_DIRTY bit set regardless
the type of entry pte consists of. The trick here is that when we carry
soft dirty status in swap entries we are to use _PAGE_SWP_SOFT_DIRTY
instead, because this is the only place in pte which can be used for own
needs without intersecting with bits owned by swap entry type/offset.
Reported-and-tested-by: Dave Jones <davej@redhat.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Analyzed-by: Hugh Dickins <hughd@google.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When debug is not enabled and dev_dbg() will expand to nothing,
log might be flooded with "callbacks suppressed". If it was not
done on purpose, better to use dev_dbg_ratelimited() instead.
Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Wrong capability bit was checked for best effort service latency.
bit 20 indicate port is BESL LPM capable (BLC),
bit 19 is hardware LPM capable (HLC)
This patch should be backported to kernels as old as 3.11, that
contain the commit a558ccdcc7 "usb: xhci:
add USB2 Link power management BESL support"
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Steve Cotton <steve@s.cotton.clara.co.uk>
Cc: stable@vger.kernel.org
If a USB controller with XHCI_RESET_ON_RESUME goes to runtime suspend,
a reset will be performed upon runtime resume. Any previously suspended
devices attached to the controller will be re-enumerated at this time.
This will cause problems, for example, if an open system call on the
device triggered the resume (the open call will fail).
Note that this change is only relevant when persist_enabled is not set
for USB devices.
This patch should be backported to kernels as old as 3.0, that
contain the commit c877b3b2ad "xhci: Add
reset on resume quirk for asrock p67 host".
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
I've changed employers, so change the email addresses to match.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The temperature reporting interface stays the same, so we just
add the PCI-ID to the list.
Verified on AMD Olive Hill.
Signed-off-by: Wei Hu <wei@aristanetworks.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The callers never check for negative but they sometimes check for zero
returns:
int reg = ADT7462_REG_VOLT_MAX(data, i);
data->volt_max[i] =
(reg ? i2c_smbus_read_byte_data(client, reg) : 0);
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
There are a couple of calculations, which convert between register addresses and
block indices, in regcache_rbtree_sync() and regcache_rbtree_node_alloc() which
assume that reg_stride is 1. This will break the rb cache for configurations
which do not use a reg_stride of 1.
Also rename 'base' in regcache_rbtree_sync() to 'start' to avoid confusion with
'base_reg'.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Record pid on struct thread. The member is named 'pid_' to avoid
confusion with the 'tid' member which was previously named 'pid'.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1377522030-27870-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fix module device table entry. Without this, there will
be a build failure while trying to build qspi as a module.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This solves a problem observed in kexec'ed kernel where 200ms timeout is
too short and bootconsole fails to initialize. Console did eventually
become workable but much later into the boot process.
Observed timeout was around 260ms, but I decided to make it a little bigger
for more reliability.
This has been tested on Power7 machine with Petitboot as a primary
bootloader and PowerNV firmware.
CC: <stable@vger.kernel.org>
Signed-off-by: Eugene Surovegin <surovegin@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
On 64-bit, __pa(&static_var) gets miscompiled by recent versions of
gcc as something like:
addis 3,2,.LANCHOR1+4611686018427387904@toc@ha
addi 3,3,.LANCHOR1+4611686018427387904@toc@l
This ends up effectively ignoring the offset, since its bottom 32 bits
are zero, and means that the result of __pa() still has 0xC in the top
nibble. This happens with gcc 4.8.1, at least.
To work around this, for 64-bit we make __pa() use an AND operator,
and for symmetry, we make __va() use an OR operator. Using an AND
operator rather than a subtraction ends up with slightly shorter code
since it can be done with a single clrldi instruction, whereas it
takes three instructions to form the constant (-PAGE_OFFSET) and add
it on. (Note that MEMORY_START is always 0 on 64-bit.)
CC: <stable@vger.kernel.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
/proc/powerpc/lparcfg is an ancient facility (though still actively used)
which allows access to some informations relative to the partition when
running underneath a PAPR compliant hypervisor.
It makes no sense on non-pseries machines. However, currently, not only
can it be created on these if the kernel has pseries support, but accessing
it on such a machine will crash due to trying to do hypervisor calls.
In fact, it should also not do HV calls on older pseries that didn't have
an hypervisor either.
Finally, it has the plumbing to be a module but is a "bool" Kconfig option.
This fixes the whole lot by turning it into a machine_device_initcall
that is only created on pseries, and adding the necessary hypervisor
check before calling the H_GET_EM_PARMS hypercall
CC: <stable@vger.kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Here is a single bugfix that resolves the "can not build the OHCI driver
with CONFIG_PM disabled" problem that lots of people have been reporting
with 3.11-rc7. Sorry about that one, it missed my build tests, and it
seems, a number of others as well.
Thank goodness for Guenter :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.11-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB bugfix from Greg KH:
"Here is a single bugfix that resolves the "can not build the OHCI
driver with CONFIG_PM disabled" problem that lots of people have been
reporting with 3.11-rc7. Sorry about that one, it missed my build
tests, and it seems, a number of others as well.
Thank goodness for Guenter :)"
* tag 'usb-3.11-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: OHCI: fix build error related to ohci_suspend/resume
client reporting a readdir loop.
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Merge tag 'jfs-3.11-rc8' of git://github.com/kleikamp/linux-shaggy
Pull jfs fix from Dave Kleikamp:
"One JFS patch to fix an incompatibility with NFSv4 resulting in the
nfs client reporting a readdir loop"
* tag 'jfs-3.11-rc8' of git://github.com/kleikamp/linux-shaggy:
jfs: fix readdir cookie incompatibility with NFSv4
Pull cpufreq fixes for v3.12 from Viresh Kumar.
* 'cpufreq-fixes' of git://git.linaro.org/people/vireshk/linux:
cpufreq: imx6q: Fix clock enable balance
cpufreq: tegra: fix the wrong clock name
* pm-cpufreq: (60 commits)
cpufreq: pmac32-cpufreq: remove device tree parsing for cpu nodes
cpufreq: pmac64-cpufreq: remove device tree parsing for cpu nodes
cpufreq: maple-cpufreq: remove device tree parsing for cpu nodes
cpufreq: arm_big_little: remove device tree parsing for cpu nodes
cpufreq: kirkwood-cpufreq: remove device tree parsing for cpu nodes
cpufreq: spear-cpufreq: remove device tree parsing for cpu nodes
cpufreq: highbank-cpufreq: remove device tree parsing for cpu nodes
cpufreq: cpufreq-cpu0: remove device tree parsing for cpu nodes
cpufreq: imx6q-cpufreq: remove device tree parsing for cpu nodes
drivers/bus: arm-cci: avoid parsing DT for cpu device nodes
ARM: mvebu: remove device tree parsing for cpu nodes
ARM: topology: remove hwid/MPIDR dependency from cpu_capacity
of/device: add helper to get cpu device node from logical cpu index
driver/core: cpu: initialize of_node in cpu's device struture
ARM: DT/kernel: define ARM specific arch_match_cpu_phys_id
of: move of_get_cpu_node implementation to DT core library
powerpc: refactor of_get_cpu_node to support other architectures
openrisc: remove undefined of_get_cpu_node declaration
microblaze: remove undefined of_get_cpu_node declaration
cpufreq: fix bad unlock balance on !CONFIG_SMP
...
* pm-cpuidle: (25 commits)
cpuidle: Change struct menu_device field types
cpuidle: Add a comment warning about possible overflow
cpuidle: Fix variable domains in get_typical_interval()
cpuidle: Fix menu_device->intervals type
cpuidle: CodingStyle: Break up multiple assignments on single line
cpuidle: Check called function parameter in get_typical_interval()
cpuidle: Rearrange code and comments in get_typical_interval()
cpuidle: Ignore interval prediction result when timer is shorter
cpuidle-kirkwood.c: simplify use of devm_ioremap_resource()
cpuidle: kirkwood: Make kirkwood_cpuidle_remove function static
cpuidle: calxeda: Add missing __iomem annotation
SH: cpuidle: Add missing parameter for cpuidle_register()
ARM: ux500: cpuidle: Move ux500 cpuidle driver to drivers/cpuidle
ARM: ux500: cpuidle: Remove pointless include
ARM: ux500: cpuidle: Instantiate the driver from platform device
ARM: davinci: cpuidle: Fix target residency
cpuidle: Add Kconfig.arm and move calxeda, kirkwood and zynq
cpuidle: Check if device is already registered
cpuidle: Introduce __cpuidle_device_init()
cpuidle: Introduce __cpuidle_unregister_device()
...
* acpi-bind:
ACPI: Print diagnostic messages if device links cannot be created
ACPI: Drop unnecessary label from acpi_bind_one()
ACPI: Clean up error code path in acpi_unbind_one()
ACPI: Use list_for_each_entry() in acpi_unbind_one()
ACPI: acpi_bind_one()/acpi_unbind_one() whitespace cleanups
ACPI: Create symlinks in acpi_bind_one() under physical_node_lock
ACPI: Reduce acpi_bind_one()/acpi_unbind_one() code duplication
ACPI: Do not fail acpi_bind_one() if device is already bound correctly
