The function pci_msi_check_device() is called while enabling MSI
or MSI-X interrupts to make sure the PCI device can support MSI
or MSI-X capability. This patch removes the check on MSI or MSI-X
capability in the function and lets the caller do the check.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The patch caches the MSI and MSI-X capability offset in PCI device
(struct pci_dev) so that we needn't read it from the config space
upon enabling or disabling MSI or MSI-X interrupts.
[bhelgaas: moved pm_cap size change to separate patch]
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The Power Management Capability (PCI_CAP_ID_PM == 0x01) is defined by PCI
and must appear in the 256-byte PCI Configuration Space from 0-0xff. It
cannot be in the PCIe Extended Configuration space from 0x100-0xfff, so
we only need a u8 to hold its offset.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit de88cbb7 moved definitions of chained_irq_enter and
chained_irq_exit to a generic header, which must be now included instead
of the legacy arch-specific one.
This patch fixes build error caused by including the legacy header
leading to undefined chained_irq_enter and chained_irq_exit symbols.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit edc7cb2 (usb: phy: make it a menuconfig) makes USB_MXS_PHY
be a sub-item of menuconfig symbol USB_PHY. This change gets the
selection of CONFIG_USB_MXS_PHY in mxs_defconfig lost. Hence the
boot stops at the point below.
[ 1.600867] ci_hdrc ci_hdrc.0: doesn't support gadget
[ 1.606282] ci_hdrc ci_hdrc.0: EHCI Host Controller
[ 1.613522] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
Add CONFIG_USB_PHY to have the CONFIG_USB_MXS_PHY selection back to
work.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Commit edc7cb2 (usb: phy: make it a menuconfig) makes USB_MXS_PHY
be a sub-item of menuconfig symbol USB_PHY. This change gets the
selection of CONFIG_USB_MXS_PHY in imx_v6_v7_defconfig lost. Hence the
boot stops at the point below.
ci_hdrc ci_hdrc.0: doesn't support gadget
ci_hdrc ci_hdrc.0: EHCI Host Controller
ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
Add CONFIG_USB_PHY to have the CONFIG_USB_MXS_PHY selection back to
work.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The symbol usb_bind_phy is exported and annotated __init.
It looks like section mismatch. Fix by removing the
__init annotation of usb_bind_phy.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Denis Efremov <yefremov.denis@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
If function instances are not put on gadget's unbind, their implementation
module's refcount is nonzero and it is impossible to unload them.
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>
acm was the first function to be converted and it seems that its
code served as a base for converting f_sourcesink to the new function
interface. source_sink has nothing to do with acm, though.
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>
Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.
Introduced by commit 29a664 (usb: gadget: cdc2: use function
framework for ACM)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.
Introduced by commit 59835a (usb: gadget: multi: use
function framework for ACM.)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Kay Sievers reported that coreutils' stat tool has a problem with
s390's statfs[64] definition:
> The definition of struct statfs::f_type needs a fix. s390 is the only
> architecture in the kernel that uses an int and expects magic
> constants lager than INT_MAX to fit into.
>
> A fix is needed to make Fedora boot on s390, it currently fails to do
> so. Userspace does not want to add code to paper-over this issue.
[...]
> Even coreutils cannot handle it:
> #define RAMFS_MAGIC 0x858458f6
> # stat -f -c%t /
> ffffffff858458f6
>
> #define BTRFS_SUPER_MAGIC 0x9123683E
> # stat -f -c%t /mnt
> ffffffff9123683e
The bug is caused by an implicit sign extension within the stat tool:
out_uint_x (pformat, prefix_len, statfsbuf->f_type);
where the format finally will be "%lx".
A similar problem can be found in the 'tail' tool.
s390 is the only architecture which has an int type f_type member in
struct statfs[64]. Other architectures have either unsigned ints or
long values, so that the problem doesn't occur there.
Therefore change the type of the f_type member to unsigned int, so
that we get zero extension instead of sign extension when assignment to
a long value happens.
This patch changes the s390 uapi struct stafs[64] definition in the kernel
to contain only unsigned values.
This was true for 32 bit builds anyway, since we use the generic uapi
header file in that case. So lets not include conditionally the generic
uapi header file but have the s390 implementation completely independent.
Also fix the types of struct compat_stafs to match reality and move the
definition of struct compat_statfs64 to asm/compat.h since it is not part
of the api.
Reported-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
For offset > PAGE_SIZE, s390_dma_map_pages() will issue a warning
and return a wrong dma address.
This patch removes the warning and fixes the dma return address
calculation.
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The compat definitions are not part of the uapi. So move them to
s390's private compat header file.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Fix this one for !COMPAT:
compat.h: In function ‘arch_compat_alloc_user_space’:
compat.h:292:2: error: implicit declaration of function ‘is_compat_task’
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The f_spare field within struct compat_statfs is four bytes larger
than within the native 31 bit struct statfs.
compat_sys_statfs() clears the f_spare field in user space which
means that in compat mode four bytes that are behind the user space
supplied struct compat_statfs will be corrupted (zeroed).
According to Thomas Gleixner's Linux 2.6 history tree this bug is
present since v2.5.74 87880da124 "[PATCH] s390: 31 bit compat.".
So it get's fixed shortly before its 10th anniversary. Tough luck.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Currently always one page is copied to a user buffer for the last
HSA block in memcpy_hsa(). Now the correct length is used.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The gmap_map_segment function creates a special invalid segment table
entry with the address of the requested target location in the process
address space. The first access will create the connection between the
gmap segment table and the target page table of the main process.
If two threads do this concurrently both will walk the page tables and
allocate a gmap_rmap structure for the same segment table entry.
To avoid the race recheck the segment table entry after taking to page
table lock.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Implement gmap_translate() function which translates a guest absolute address
to a user space process address without establishing the guest page table
entries.
This is useful for kvm guest address translations where no memory access
is expected to happen soon (e.g. tprot exception handler).
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Pull MIPS fix from Ralf Baechle:
"Revert the change of the definition of PAGE_MASK which was prettier
but broke a few relativly rare platforms"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
Revert "MIPS: page.h: Provide more readable definition for PAGE_MASK."
If we're not maxed out then oz_get_pd_list() leaves part of the "list"
struct uninitialized. We should clear this so that no stack information
is leaked to userspace.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If "nd->nd_vpd_len" is less than 512 then the last part of the
"vpd.vpd_data" has uninitialized stack information. We need to clear it
before copying the buffer to user space.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All the RTC dma support code in this driver is #ifdef'ed out.
Remove the unused code to assist in cleaning up this driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All the RTC dma support code in this driver is #ifdef'ed out.
Remove the unused code to assist in cleaning up this driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Driver core already takes care of refcounting, no need to do this on
driver level again.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit c17a655478.
Manuel Lauss writes:
lmo commit c17a6554 (MIPS: page.h: Provide more readable definition for
PAGE_MASK) apparently breaks ioremap of 36-bit addresses on my Alchemy
systems (PCI and PCMCIA) The reason is that in arch/mips/mm/ioremap.c
line 157 (phys_addr &= PAGE_MASK) bits 32-35 are cut off. Seems the
new PAGE_MASK is explicitly 32bit, or one could make it signed instead
of unsigned long.
Pull crypto fix from Herbert Xu:
"This fixes a kernel memory leak in the algif interface"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: algif - suppress sending source address information in recvmsg
I'm going to do an -rc8, so I'm just going to do this rather than delay
it any further. They are arguably stable material anyway.
* vm_ioremap_memory-examples:
mtdchar: remove no-longer-used vma helpers
vm: convert snd_pcm_lib_mmap_iomem() to vm_iomap_memory() helper
vm: convert fb_mmap to vm_iomap_memory() helper
vm: convert mtdchar mmap to vm_iomap_memory() helper
vm: convert HPET mmap to vm_iomap_memory() helper
TMP432 is similar to TMP431 with a second external temperature sensor.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cached data is no longer valid after resetting the temperature history.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Use two-dimensional array pointing to registers
Merge temperature and limit access functions into a single function
Return error codes from I2C reads
Use DIV_ROUND_CLOSEST for rounding operations and improve rounding
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Pull kdump fixes from Peter Anvin:
"The kexec/kdump people have found several problems with the support
for loading over 4 GiB that was introduced in this merge cycle. This
is partly due to a number of design problems inherent in the way the
various pieces of kdump fit together (it is pretty horrifically manual
in many places.)
After a *lot* of iterations this is the patchset that was agreed upon,
but of course it is now very late in the cycle. However, because it
changes both the syntax and semantics of the crashkernel option, it
would be desirable to avoid a stable release with the broken
interfaces."
I'm not happy with the timing, since originally the plan was to release
the final 3.9 tomorrow. But apparently I'm doing an -rc8 instead...
* 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kexec: use Crash kernel for Crash kernel low
x86, kdump: Change crashkernel_high/low= to crashkernel=,high/low
x86, kdump: Retore crashkernel= to allocate under 896M
x86, kdump: Set crashkernel_low automatically
Pull x86 fixes from Peter Anvin:
"Three groups of fixes:
1. Make sure we don't execute the early microcode patching if family
< 6, since it would touch MSRs which don't exist on those
families, causing crashes.
2. The Xen partial emulation of HyperV can be dealt with more
gracefully than just disabling the driver.
3. More EFI variable space magic. In particular, variables hidden
from runtime code need to be taken into account too."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, microcode: Verify the family before dispatching microcode patching
x86, hyperv: Handle Xen emulation of Hyper-V more gracefully
x86,efi: Implement efi_no_storage_paranoia parameter
efi: Export efi_query_variable_store() for efivars.ko
x86/Kconfig: Make EFI select UCS2_STRING
efi: Distinguish between "remaining space" and actually used space
efi: Pass boot services variable info to runtime code
Move utf16 functions to kernel core and rename
x86,efi: Check max_size only if it is non-zero.
x86, efivars: firmware bug workarounds should be in platform code
Pull ARM fixes from Russell King:
"A set of fixes from various people - Will Deacon gets a prize for
removing code this time around. The biggest fix in this lot is
sorting out the ARM740T mess. The rest are relatively small fixes."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7699/1: sched_clock: Add more notrace to prevent recursion
ARM: 7698/1: perf: fix group validation when using enable_on_exec
ARM: 7697/1: hw_breakpoint: do not use __cpuinitdata for dbg_cpu_pm_nb
ARM: 7696/1: Fix kexec by setting outer_cache.inv_all for Feroceon
ARM: 7694/1: ARM, TCM: initialize TCM in paging_init(), instead of setup_arch()
ARM: 7692/1: iop3xx: move IOP3XX_PERIPHERAL_VIRT_BASE
ARM: modules: don't export cpu_set_pte_ext when !MMU
ARM: mm: remove broken condition check for v4 flushing
ARM: mm: fix numerous hideous errors in proc-arm740.S
ARM: cache: remove ARMv3 support code
ARM: tlbflush: remove ARMv3 support
Pull sparc fixes from David Miller:
1) Fix race in sparc64 TLB shootdowns, we have to synchronize with the
sibling cpus completing if we are passing them a reference via
pointer to a data structure.
2) Fix cleaning of bitmaps in sparc32, from Akinobu Mita.
3) Fix various sparc header mistakes, some of which resulted in
userland build breakage. From Sam Ravnborg.
4) Kill ghost declarations and defines missed when several bits of code
got deleted recently.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix race in TLB batch processing.
sparc: use asm-generic version of types.h
bbc_i2c: fix section mismatch warning
sparc: use generic headers
sparc:cleanup unused code in smp_32.h
sparc/iommu: fix typo s/265KB/256KB/
sparc/srmmu: clear trailing edge of bitmap properly
sparc:remove unused declaration smp_boot_cpus()
Pull networking updates from David Miller:
1) ax88796 does 64-bit divides which causes link errors on ARM, fix
from Arnd Bergmann.
2) Once an improper offload setting is detected on an SKB we don't rate
limit the log message so we can very easily live lock. From Ben
Greear.
3) Openvswitch cannot report vport configuration changes reliably
because it didn't preallocate the netlink notification message
before changing state. From Jesse Gross.
4) The effective UID/GID SCM credentials fix, from Linus.
5) When a user explicitly asks for wireless authentication, cfg80211
isn't told about the AP detachment leaving inconsistent state. Fix
from Johannes Berg.
6) Fix self-MAC checks in batman-adv on multi-mesh nodes, from Antonio
Quartulli.
7) Revert build_skb() change sin IGB driver, can result in memory
corruption. From Alexander Duyck.
8) Fix setting VLANs on virtual functions in IXGBE, from Greg Rose.
9) Fix TSO races in qlcnic driver, from Sritej Velaga.
10) In bnx2x the kernel driver and UNDI firmware can try to program the
chip at the same time, resulting in corruption. Add proper
synchronization. From Dmitry Kravkov.
11) Fix corruption of status block in firmware ram in bxn2x, from Ariel
Elior.
12) Fix load balancing hash regression of bonding driver in forwarding
configurations, from Eric Dumazet.
13) Fix TS ECR regression in TCP by calling tcp_replace_ts_recent() in
all the right spots, from Eric Dumazet.
14) Fix several bonding bugs having to do with address manintainence,
including not removing address when configuration operations
encounter errors, missed locking on the address lists, missing
refcounting on VLAN objects, etc. All from Nikolay Aleksandrov.
15) Add workarounds for firmware bugs in LTE qmi_wwan devices, wherein
the devices fail to add a proper ethernet header while on LTE
networks but otherwise properly do so on 2G and 3G ones. From Bjørn
Mork.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits)
net: fix incorrect credentials passing
net: rate-limit warn-bad-offload splats.
net: ax88796: avoid 64 bit arithmetic
qlge: Update version to 1.00.00.32.
qlge: Fix ethtool autoneg advertising.
qlge: Fix receive path to drop error frames
net: qmi_wwan: prevent duplicate mac address on link (firmware bug workaround)
net: qmi_wwan: fixup destination address (firmware bug workaround)
net: qmi_wwan: fixup missing ethernet header (firmware bug workaround)
bonding: in bond_mc_swap() bond's mc addr list is walked without lock
bonding: disable netpoll on enslave failure
bonding: primary_slave & curr_active_slave are not cleaned on enslave failure
bonding: vlans don't get deleted on enslave failure
bonding: mc addresses don't get deleted on enslave failure
pkt_sched: fix error return code in fw_change_attrs()
irda: small read past the end of array in debug code
tcp: call tcp_replace_ts_recent() from tcp_ack()
netfilter: xt_rpfilter: skip locally generated broadcast/multicast, too
netfilter: ipset: bitmap:ip,mac: fix listing with timeout
bonding: fix l23 and l34 load balancing in forwarding path
...
Commit 257b5358b3 ("scm: Capture the full credentials of the scm
sender") changed the credentials passing code to pass in the effective
uid/gid instead of the real uid/gid.
Obviously this doesn't matter most of the time (since normally they are
the same), but it results in differences for suid binaries when the wrong
uid/gid ends up being used.
This just undoes that (presumably unintentional) part of the commit.
Reported-by: Andy Lutomirski <luto@amacapital.net>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Serge E. Hallyn <serge@hallyn.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Matt Fleming (1):
x86, efivars: firmware bug workarounds should be in platform
code
Matthew Garrett (3):
Move utf16 functions to kernel core and rename
efi: Pass boot services variable info to runtime code
efi: Distinguish between "remaining space" and actually used
space
Richard Weinberger (2):
x86,efi: Check max_size only if it is non-zero.
x86,efi: Implement efi_no_storage_paranoia parameter
Sergey Vlasov (2):
x86/Kconfig: Make EFI select UCS2_STRING
efi: Export efi_query_variable_store() for efivars.ko
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
For each CPU vendor that implements CPU microcode patching, there will
be a minimum family for which this is implemented. Verify this
minimum level of support.
This can be done in the dispatch function or early in the application
functions. Doing the latter turned out to be somewhat awkward because
of the ineviable split between the BSP and the AP paths, and rather
than pushing deep into the application functions, do this in
the dispatch function.
Reported-by: "Bryan O'Donoghue" <bryan.odonoghue.lkml@nexus-software.ie>
Suggested-by: Borislav Petkov <bp@alien8.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1366392183-4149-1-git-send-email-bryan.odonoghue.lkml@nexus-software.ie
If one does do something unfortunate and allow a
bad offload bug into the kernel, this the
skb_warn_bad_offload can effectively live-lock the
system, filling the logs with the same error over
and over.
Add rate limitation to this so that box remains otherwise
functional in this case.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
