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2013-10-29Merge branch 'sirf/dt' into next/dtOlof Johansson
From Barry Song: Some missed dt nodes for sirf dts for 3.13. Among them: - add missed chhifbg node in prima2 and atlas6 dts - add missed cell, cs and dma channel for SPI nodes - add missed graphics2d iobg in atlas6 dts - add missed address-cells and size-cells for prima2 I2C - add missed memcontrol-monitor node in prima2 and atlas6 dts * sirf/dt: ARM: dts: sirf: add missed address-cells and size-cells for prima2 I2C ARM: dts: sirf: add missed cell, cs and dma channel for SPI nodes ARM: dts: sirf: add missed graphics2d iobg in atlas6 dts ARM: dts: sirf: add missed chhifbg node in prima2 and atlas6 dts ARM: dts: sirf: add missed memcontrol-monitor node in prima2 and atlas6 dts Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-29ARM: dts: sirf: add missed address-cells and size-cells for prima2 I2CRenwei Wu
here prima2 i2c node is lacking of address-cells and size-cells. Signed-off-by: Renwei Wu <Renwei.Wu@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-29ARM: dts: sirf: add missed cell, cs and dma channel for SPI nodesBarry Song
here we need to add missed cell, cs and dma channels prop in SPI nodes to match with drivers. Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-29ARM: dts: sirf: add missed graphics2d iobg in atlas6 dtsJiansong Chen
there is a bus bridge for graphics 2D module lost in current dts, this patch takes it back. Signed-off-by: Jiansong Chen <jiansong.chen@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-29ARM: dts: sirf: add missed chhifbg node in prima2 and atlas6 dtsBarry Song
CPHIF(Cell phone interface) is behind sys bridge, this patch adds the missed node. Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-29ARM: dts: sirf: add missed memcontrol-monitor node in prima2 and atlas6 dtsYe He
memcontrol-monitor provides the ability of monitoring the memory bandwidth. Signed-off-by: Ye He <ye.he@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-29Fix a few incorrectly checked [io_]remap_pfn_range() callsLinus Torvalds
Nico Golde reports a few straggling uses of [io_]remap_pfn_range() that really should use the vm_iomap_memory() helper. This trivially converts two of them to the helper, and comments about why the third one really needs to continue to use remap_pfn_range(), and adds the missing size check. Reported-by: Nico Golde <nico@ngolde.de> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org.
2013-10-29uprobes: Teach uprobe_copy_process() to handle CLONE_VFORKOleg Nesterov
uprobe_copy_process() does nothing if the child shares ->mm with the forking process, but there is a special case: CLONE_VFORK. In this case it would be more correct to do dup_utask() but avoid dup_xol(). This is not that important, the child should not unwind its stack too much, this can corrupt the parent's stack, but at least we need this to allow to ret-probe __vfork() itself. Note: in theory, it would be better to check task_pt_regs(p)->sp instead of CLONE_VFORK, we need to dup_utask() if and only if the child can return from the function called by the parent. But this needs the arch-dependant helper, and I think that nobody actually does clone(same_stack, CLONE_VM). Reported-by: Martin Cermak <mcermak@redhat.com> Reported-by: David Smith <dsmith@redhat.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com>
2013-10-29uprobes: Change uprobe_copy_process() to dup xol_areaOleg Nesterov
This finally fixes the serious bug in uretprobes: a forked child crashes if the parent called fork() with the pending ret probe. Trivial test-case: # perf probe -x /lib/libc.so.6 __fork%return # perf record -e probe_libc:__fork perl -le 'fork || print "OK"' (the child doesn't print "OK", it is killed by SIGSEGV) If the child returns from the probed function it actually returns to trampoline_vaddr, because it got the copy of parent's stack mangled by prepare_uretprobe() when the parent entered this func. It crashes because a) this address is not mapped and b) until the previous change it doesn't have the proper->return_instances info. This means that uprobe_copy_process() has to create xol_area which has the trampoline slot, and its vaddr should be equal to parent's xol_area->vaddr. Unfortunately, uprobe_copy_process() can not simply do __create_xol_area(child, xol_area->vaddr). This could actually work but perf_event_mmap() doesn't expect the usage of foreign ->mm. So we offload this to task_work_run(), and pass the argument via not yet used utask->vaddr. We know that this vaddr is fine for install_special_mapping(), the necessary hole was recently "created" by dup_mmap() which skips the parent's VM_DONTCOPY area, and nobody else could use the new mm. Unfortunately, this also means that we can not handle the errors properly, we obviously can not abort the already completed fork(). So we simply print the warning if GFP_KERNEL allocation (the only possible reason) fails. Reported-by: Martin Cermak <mcermak@redhat.com> Reported-by: David Smith <dsmith@redhat.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
2013-10-29uprobes: Change uprobe_copy_process() to dup return_instancesOleg Nesterov
uprobe_copy_process() assumes that the new child doesn't need ->utask, it should be allocated by demand. But this is not true if the forking task has the pending ret- probes, the child should report them as well and thus it needs the copy of parent's ->return_instances chain. Otherwise the child crashes when it returns from the probed function. Alternatively we could cleanup the child's stack, but this needs per-arch changes and this is not what we want. At least systemtap expects a .return in the child too. Note: this change alone doesn't fix the problem, see the next change. Reported-by: Martin Cermak <mcermak@redhat.com> Reported-by: David Smith <dsmith@redhat.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
2013-10-29uprobes: Teach __create_xol_area() to accept the predefined vaddrOleg Nesterov
Currently xol_add_vma() uses get_unmapped_area() for area->vaddr, but the next patches need to use the fixed address. So this patch adds the new "vaddr" argument to __create_xol_area() which should be used as area->vaddr if it is nonzero. xol_add_vma() doesn't bother to verify that the predefined addr is not used, insert_vm_struct() should fail if find_vma_links() detects the overlap with the existing vma. Also, __create_xol_area() doesn't need __GFP_ZERO to allocate area. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
2013-10-29uprobes: Introduce __create_xol_area()Oleg Nesterov
No functional changes, preparation. Extract the code which actually allocates/installs the new area into the new helper, __create_xol_area(). While at it remove the unnecessary "ret = ENOMEM" and "ret = 0" in xol_add_vma(), they both have no effect. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
2013-10-29uprobes: Change the callsite of uprobe_copy_process()Oleg Nesterov
Preparation for the next patches. Move the callsite of uprobe_copy_process() in copy_process() down to the succesfull return. We do not care if copy_process() fails, uprobe_free_utask() won't be called in this case so the wrong ->utask != NULL doesn't matter. OTOH, with this change we know that copy_process() can't fail when uprobe_copy_process() is called, the new task should either return to user-mode or call do_exit(). This way uprobe_copy_process() can: 1. setup p->utask != NULL if necessary 2. setup uprobes_state.xol_area 3. use task_work_add(p) Also, move the definition of uprobe_copy_process() down so that it can see get_utask(). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
2013-10-29uprobes: Remove the wrong __weak attributeRalf Baechle
linux/uprobes.h declares arch_uprobe_skip_sstep() as a weak function. But as there is no definition of generic version so when trying to build uprobes for an architecture that doesn't yet have a arch_uprobe_skip_sstep() implementation, the vmlinux will try to call arch_uprobe_skip_sstep() somehwere in Stupidhistan leading to a system crash. We rather want a proper link error so remove arch_uprobe_skip_sstep(). Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Oleg Nesterov <oleg@redhat.com>
2013-10-29tty: xuartps: Fix build error when COMMON_CLK is not setSoren Brinkmann
Clock notifiers are only available when CONFIG_COMMON_CLK is enabled. Hence all notifier related code has to be protected by corresponsing ifdefs. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29tty: xuartps: Fix build error due to missing forward declarationSoren Brinkmann
If CONFIG_PM_SLEEP is enabled and CONFIG_SERIAL_XILINX_PS_UART_CONSOLE is not, a forward declaration of the uart_driver struct is not included, leading to a build error due to an undeclared variable. Fixing this by moving the definition of the struct uart_driver before the definition of the suspend/resume callbacks. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29tty: xuartps: Fix "may be used uninitialized" build warningSoren Brinkmann
Initialize varibles for which a 'may be used uninitalized' warning is issued. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: r8188eu: Fix sparse warnings in rtl_p2p.cLarry Finger
Sparse displays the following: CHECK drivers/staging/rtl8188eu/core/rtw_p2p.c drivers/staging/rtl8188eu/core/rtw_p2p.c:162:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_p2p.c:162:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_p2p.c:162:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_p2p.c:221:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_p2p.c:221:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_p2p.c:221:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_p2p.c:292:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_p2p.c:292:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_p2p.c:292:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_p2p.c:371:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_p2p.c:371:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_p2p.c:371:15: got restricted __le16 *<noident> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: r8188eu: Fix sparse warnings in rtw_mlme_ext.cLarry Finger
Sparse displays the following: CHECK drivers/staging/rtl8188eu/core/rtw_mlme_ext.c drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:1874:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:1874:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:1874:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2221:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2221:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2221:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2583:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2583:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2583:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2750:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2750:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2750:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3002:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3002:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3002:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3197:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3197:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3197:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3311:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3311:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3311:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3563:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3563:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3563:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4522:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4522:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4522:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4750:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4750:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4750:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4906:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4906:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4906:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5040:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5040:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5040:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5184:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5184:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5184:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5322:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5322:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5322:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5654:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5654:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5654:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5769:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5769:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5769:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5894:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5894:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5894:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5996:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5996:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5996:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6066:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6066:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6066:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6200:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6200:15: expected unsigned short *fctrl drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6200:15: got restricted __le16 *<noident> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: r8188eu: Fix sparse warnings in rtl8188e.cmd.cLarry Finger
Sparse displays the following: CHECK drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:285:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:285:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:285:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:368:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:368:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:368:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:403:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:403:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:403:15: got restricted __le16 *<noident> drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:465:15: warning: incorrect type in assignment (different base types) drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:465:15: expected unsigned short [usertype] *fctrl drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:465:15: got restricted __le16 *<noident> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: r8188eu: Fix sparse warnings in rtw_ieee80211.cLarry Finger
Sparse reports the following: CHECK drivers/staging/rtl8188eu/core/rtw_ieee80211.c drivers/staging/rtl8188eu/core/rtw_ieee80211.c:1593:14: warning: cast to restricted __le16 Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: comedi: s626: replace S626_MULT_X? valuesIan Abbott
Replace the use of the `S626_MULT_X1`, `S626_MULT_X2` and `S626_MULT_X4` clock multiplier values with the equivalent `S626_CLKMULT_1X`, `S626_CLKMULT_2X` and `S626_CLKMULT_4X` values to avoid duplication. Replace the use of `S626_MULT_X0` with a new macro `S626_CLKMULT_SPECIAL` (this is treated specially by the 'ClkMultA'/'ClkMultB' field of the 'CRA'/'CRB' register). Remove the now unused `S626_MULT_X?` macros. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: comedi: s626: remove S626_BF_* macrosIan Abbott
The `S626_BF_*` bitfield position macros are no longer used and are just a subset of the corresponding `S626_STDBIT_*` bitfield position macros. Remove them. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: comedi: s626: expand standardized IndxSrc valuesIan Abbott
The 'IndxSrc' value for the standardized encoder setup is currently 1 bit wide and takes one of the following values: S626_INDXSRC_HARD = 0 // index source from hardware encoder S626_INDXSRC_SOFT = 1 // index source software controlled by IndxPol However the hardware 'IndxSrcA' and 'IndxSrcB' values for the 'A' and 'B' counters are 2 bits wide. The above standardized values 0 and 1 correspond to the hardware values 0 and 2. In order to simplify conversions between the standardized values and hardware values, expand the range of standardized values to cover all four possible values. The new values are as follows: S626_INDXSRC_ENCODER = 0 // index source from hardware encoder S626_INDXSRC_DIGIN = 1 // index source from digital inputs S626_INDXSRC_SOFT = 2 // index source s/w controlled by IndxPol S626_INDXSRC_DISABLED = 2 // index source disabled (Note the change in value for `S626_INDXSRC_SOFT` and the replacement of `S626_INDXSRC_HARD` with `S626_INDXSRC_ENCODER` for consistency with the `CntSrc` values.) Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: comedi: s626: make CRA and CRB setup conversions more readableIan Abbott
Use the new macros defined in "s626.h" for constructing and decomposing 'CRA', 'CRB' and standardized encoder setup values to make the conversions between standardized encoder setup values, and CRA/CRB register values easier to follow. There is some messing about with the 'IndxSrc' values which are 1-bit wide in the standardized encoder setup, and 2-bit wide in the 'CRA' and 'CRB' register values. This will be addressed by a later patch. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: drm/imx: fix return value check in imx_drm_init()Wei Yongjun
In case of error, the function platform_device_register_simple() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: comedi: adl_pci9118: fix a misaligned commentIan Abbott
As pointed out by Hartley Sweeten, one of my recent patches resulted in the start of a multi-line comment ending up misaligned. Fix it. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: r8188eu: Set device type to wlanLarry Finger
The latest version of NetworkManager does not recognize the device as wireless without this change. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> # [3.12+] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: Remove OOM message after input_allocate_deviceJoe Perches
Emitting an OOM message isn't necessary after input_allocate_device as there's a generic OOM and a dump_stack already done. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: octeon: drop redundant mac address checkLuka Perkov
Checking if MAC address is valid using is_valid_ether_addr() is already done in of_get_mac_address(). Signed-off-by: Luka Perkov <luka@openwrt.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29Staging: bcm: Fix WARNING: space prohibited before semicolon.Kevin McKinney
This patch removes a space before semicolon as specified by checkpatch.pl. Signed-off-by: Kevin McKinney <klmckinney1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29drivers: staging: bcm: Removed a developer debug statement.Chuong Ngo
Removed a developer debug statement per the TODO list. Additionally, removed braces for the if-statement to match coding style. Signed-off-by: Chuong Ngo <cngo.github@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29Stging: bcm: Adapter.h : removed typedef from struct _U_IP_ADDRESS and ↵Himangi Saraogi
changed it to lowercase Running checkpatch.pl on the file drivers/staging/bcm/Adapter.h gave an error as it is a mistake to use typedef for structures according to CodeingStyle as it reduces readability. The typedef was removed and all occurrences of the typedef union were replaced with union u_ip_address as types are all lowercase. Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29Staging: winbond: Fix Sparse Warnings in reg.cEbru Akagunduz
This patch fixes the Sparse Warnings "symbol was not declared. Should it be static?" and "defined but not used [-Wunused-variable]" in reg.c Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29Staging: winbond: Fix Sparse Warnings in phy_calibration.cEbru Akagunduz
This patch fixes Sparse Warnings "symbol was not declared. Should it be static?" and "defined but not used [-Wunused-function]" in phy_calibration.c Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: comedi: use memdup_user to simplify codeTeodora Baluta
Use memdup_user rather than duplicating implementation. Fix following coccinelle warnings: drivers/staging/comedi/comedi_fops.c:1425:5-12: WARNING opportunity for memdup_user drivers/staging/comedi/comedi_fops.c:1553:6-13: WARNING opportunity for memdup_user Signed-off-by: Teodora Baluta <teobaluta@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf tooling fixes from Ingo Molnar: "This contains five tooling fixes: - fix a remaining mmap2 assumption which resulted in perf top output breakage - fix mmap ring-buffer processing bug that corrupts data - fix for a severe python scripting memory leak - fix broken (and user-visible) -g option handling - fix stdio output The diffstat size is larger than what we'd like to see this late :-/" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools: Fixup mmap event consumption perf top: Split -G and --call-graph perf record: Split -g and --call-graph perf hists: Add color overhead for stdio output buffer perf tools: Fix up /proc/PID/maps parsing perf script python: Fix mem leak due to missing Py_DECREFs on dict entries
2013-10-29staging: ft1000: status variables changed to int in ft1000_download.cKelley Nielsen
Linux uses a return type of int for status codes. The file ft1000_download.c uses a mixture of u16 and u32. This patch changes all variables called status or Status to ints, whether they are returned from the function or not. It also changes the return type of all functions returning one of the variables to correspond. Also, the declaration of scram_dnldr has been changed in ft1000_usb.h. Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: ft1000: style issues fixed in write_blkKelley Nielsen
function write_blk, in ft1000_download.c, contains many coding style issues. It has indentations of 3 spaces, long lines, C99 comments, and extra whitespace. It also has a return type of u32, and changing the returned variable in the function triggers a checkpatch leading spaces warning. Indentation should be fixed throughout the file for consistency. This patch fixes those issues, in preparation for correcting the status return type throughout the file. The variable Status has been changed from u32 to int and renamed status. Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: ft1000: function write_dpram32_and_check extracted from write_blkKelley Nielsen
function write_blk is long and overly complex, consisting of a triply nested loop. It also has improper indentation and line lengths throughout, and has return type of u32 rather than int. Some of the lines, when converted to proper indentation, create checkpatch warnings for too many leading tabs. This patch extracts the innermost loop into its own function, write_dpram32_and_check. This removes several levels of indentation from the extracted lines and makes the original function simpler. Two local variables from the original function, u16 resultbuffer[] and a loop counter, have been made local variables of the new function. Two calls to msleep() have been replaced with usleep_range() as per Documentation/ timers/timers-howto.txt (which was referred to in a checkpatch warning). Several other style issues in the extracted code have been corrected as well. Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: ft1000: duplicate code replaced with call to request_code_segmentKelley Nielsen
function scram_dnldr, in ft1000_download.c, is very long and consists mainly of nested switch statements inside a while loop. Some code in one of the inner switch cases was almost identical to the code in the previously extracted function request_code_segment. The duplicated code was replaced with a call to request_code_segment, and request_code_segment was slightly modified to work in both cases. A new parameter was added to request_code_segment, a bool to distinguish which case it was replacing. The name of an existing parameter (now called endpoint) was changed to reflect the fact that it will be passed in from more than one place. Several lines from the case containing the duplicated code were moved to request_code_segment, and a test was added to determine if these lines or a line from the original function should be run. Finally, an unused variable (tempword) was removed from scram_dnldr. Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29staging: ft1000: function request_code_segment extractedKelley Nielsen
function scram_dnldr in ft1000_download.c is very long and contains many coding style errors and best practice violations. It consists of nested switch statements inside a while loop. One of the inner switch cases has been extracted as a helper function. Also, some style errors (such as C99 comments) have been fixed, an assignment to an unread variable has been removed, and break statements inside ifs have been converted to returns. Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-29Kconfig: make KOBJECT_RELEASE debugging require timer debuggingLinus Torvalds
Without the timer debugging, the delayed kobject release will just result in undebuggable oopses if it triggers any latent bugs. That doesn't actually help debugging at all. So make DEBUG_KOBJECT_RELEASE depend on DEBUG_OBJECTS_TIMERS to avoid having people enable one without the other. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-10-29perf: Fix the perf context switch optimizationPeter Zijlstra
Currently we only optimize the context switch between two contexts that have the same parent; this forgoes the optimization between parent and child context, even though these contexts could be equivalent too. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Shishkin, Alexander <alexander.shishkin@intel.com> Link: http://lkml.kernel.org/r/20131007164257.GH3081@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-29drm/i915: Fix the PPT fdi lane bifurcate state handling on ivbDaniel Vetter
Originally I've thought that this is leftover hw state dirt from the BIOS. But after way too much helpless flailing around on my part I've noticed that the actual bug is when we change the state of an already active pipe. For example when we change the fdi lines from 2 to 3 without switching off outputs in-between we'll never see the crucial on->off transition in the ->modeset_global_resources hook the current logic relies on. Patch version 2 got this right by instead also checking whether the pipe is indeed active. But that in turn broke things when pipes have been turned off through dpms since the bifurcate enabling is done in the ->crtc_mode_set callback. To address this issues discussed with Ville in the patch review move the setting of the bifurcate bit into the ->crtc_enable hook. That way we won't wreak havoc with this state when userspace puts all other outputs into dpms off state. This also moves us forward with our overall goal to unify the modeset and dpms on paths (which we need to have to allow runtime pm in the dpms off state). Unfortunately this requires us to move the bifurcate helpers around a bit. Also update the commit message, I've misanalyzed the bug rather badly. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=70507 Tested-by: Jan-Michael Brummer <jan.brummer@tabos.org> Cc: stable@vger.kernel.org Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-29netfilter: xt_NFQUEUE: fix --queue-bypass regressionHolger Eitzenberger
V3 of the NFQUEUE target ignores the --queue-bypass flag, causing packets to be dropped when the userspace listener isn't running. Regression is in since 8746ddcf12bb26 ("netfilter: xt_NFQUEUE: introduce CPU fanout"). Reported-by: Florian Westphal <fw@strlen.de> Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-10-29perf/x86: Further optimize copy_from_user_nmi()Peter Zijlstra
Now that we can deal with nested NMI due to IRET re-enabling NMIs and can deal with faults from NMI by making sure we preserve CR2 over NMIs we can in fact simply access user-space memory from NMI context. So rewrite copy_from_user_nmi() to use __copy_from_user_inatomic() and rework the fault path to do the minimal required work before taking the in_atomic() fault handler. In particular avoid perf_sw_event() which would make perf recurse on itself (it should be harmless as our recursion protections should be able to deal with this -- but why tempt fate). Also rename notify_page_fault() to kprobes_fault() as that is a much better name; there is no notifier in it and its specific to kprobes. Don measured that his worst case NMI path shrunk from ~300K cycles to ~150K cycles. Cc: Stephane Eranian <eranian@google.com> Cc: jmario@redhat.com Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: dave.hansen@linux.intel.com Tested-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20131024105206.GM2490@laptop.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-29perf: Change zero-padding of strings in perf_event_mmap_event()Peter Zijlstra
Oleg complained about the excessive 0-ing in perf_event_mmap_event(), so try and be smarter about it while keeping it fairly fool proof and avoid leaking random bits out to userspace. Suggested-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-8jirlm99m6if2z13wd6rbyu6@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-29perf: Do not waste PAGE_SIZE bytes for ALIGN(8) in perf_event_mmap_event()Oleg Nesterov
perf_event_mmap_event() does kzalloc(PATH_MAX + sizeof(u64)) to ensure we can align the size later. However this means that we actually allocate PAGE_SIZE * 2 buffer, seems too much. Change this code to allocate PATH_MAX==PAGE_SIZE bytes, but tell d_path() to not use the last sizeof(u64) bytes. Note: it is not clear why do we need __GFP_ZERO, see the next patch. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20131016201004.GC23214@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-29perf: Kill the dead !vma->vm_mm code in perf_event_mmap_event()Oleg Nesterov
1. perf_event_mmap(vma) is never called with a gate_vma-like arg, remove the "if (!vma->vm_mm)" code. 2. arch_vma_name() can use the chached value of mmap_event->vma. 3. Change the code to not call arch_vma_name() twice. 4. Purely cosmetic, but since we use "goto got_name" all the time remove "else" from "[stack]" branch just for symmetry. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20131016200945.GB23214@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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