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* lib: add lib/gcd.cFlorian Fainelli2009-06-181-0/+8
| | | | | | | | | | | | | | | | | | | | This patch adds lib/gcd.c which contains a greatest common divider implementation taken from sound/core/pcm_timer.c Several usages of this new library function will be sent to subsystem maintainers. [akpm@linux-foundation.org: use swap() (pointed out by Joe)] [akpm@linux-foundation.org: just add gcd.o to obj-y, remove Kconfig changes] Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Simon Horman <horms@verge.net.au> Cc: Julius Volz <juliusv@google.com> Cc: David S. Miller <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* LinuxPPS: core supportRodolfo Giometti2009-06-183-0/+212
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the kernel side of the PPS support currently named "LinuxPPS". PPS means "pulse per second" and a PPS source is just a device which provides a high precision signal each second so that an application can use it to adjust system clock time. Common use is the combination of the NTPD as userland program with a GPS receiver as PPS source to obtain a wallclock-time with sub-millisecond synchronisation to UTC. To obtain this goal the userland programs shoud use the PPS API specification (RFC 2783 - Pulse-Per-Second API for UNIX-like Operating Systems, Version 1.0) which in part is implemented by this patch. It provides a set of chars devices, one per PPS source, which can be used to get the time signal. The RFC's functions can be implemented by accessing to these char devices. Signed-off-by: Rodolfo Giometti <giometti@linux.it> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* w1-gpio: add external pull-up enable callbackDaniel Mack2009-06-181-0/+1
| | | | | | | | | | | | | | | | | | | On embedded devices, sleep mode conditions can be tricky to handle, Especially when processors tend to pull-down the w1 bus during sleep. Bus slaves (such as the ds2760) may interpret this as a reason for power-down conditions and entirely switch off the device. This patch adds a callback function pointer to let users switch on and off the external pull-up resistor. This lets the outside world know whether the processor is currently actively driving the bus or not. When this callback is not provided, the code behaviour won't change. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Ville Syrjala <syrjala@sci.fi> Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dma-mapping: add asm-generic/dma-mapping-common.hFUJITA Tomonori2009-06-181-0/+190
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | We unified x86 and IA64's handling of multiple dma mapping operations (struct dma_map_ops in linux/dma-mapping.h) so we can remove duplication in their arch/include/asm/dma-mapping.h. This patchset adds include/asm-generic/dma-mapping-common.h that provides some generic dma mapping function definitions for the users of struct dma_map_ops. This enables us to remove about 100 lines. This also enables us to easily add CONFIG_DMA_API_DEBUG support, which only x86 supports for now. The 4th patch adds CONFIG_DMA_API_DEBUG support to IA64 by adding only 8 lines. This patch: This header file provides some mapping function definitions that the users of struct dma_map_ops can use. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Joerg Roedel <joerg.roedel@amd.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gcov: add gcov profiling infrastructurePeter Oberparleiter2009-06-181-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable the use of GCC's coverage testing tool gcov [1] with the Linux kernel. gcov may be useful for: * debugging (has this code been reached at all?) * test improvement (how do I change my test to cover these lines?) * minimizing kernel configurations (do I need this option if the associated code is never run?) The profiling patch incorporates the following changes: * change kbuild to include profiling flags * provide functions needed by profiling code * present profiling data as files in debugfs Note that on some architectures, enabling gcc's profiling option "-fprofile-arcs" for the entire kernel may trigger compile/link/ run-time problems, some of which are caused by toolchain bugs and others which require adjustment of architecture code. For this reason profiling the entire kernel is initially restricted to those architectures for which it is known to work without changes. This restriction can be lifted once an architecture has been tested and found compatible with gcc's profiling. Profiling of single files or directories is still available on all platforms (see config help text). [1] http://gcc.gnu.org/onlinedocs/gcc/Gcov.html Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Huang Ying <ying.huang@intel.com> Cc: Li Wei <W.Li@Sun.COM> Cc: Michael Ellerman <michaele@au1.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com> Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: WANG Cong <xiyou.wangcong@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* seq_file: add function to write binary dataPeter Oberparleiter2009-06-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | seq_write() can be used to construct seq_files containing arbitrary data. Required by the gcov-profiling interface to synthesize binary profiling data files. Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Huang Ying <ying.huang@intel.com> Cc: Li Wei <W.Li@Sun.COM> Cc: Michael Ellerman <michaele@au1.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com> Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: WANG Cong <xiyou.wangcong@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* kernel: constructor supportPeter Oberparleiter2009-06-184-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | Call constructors (gcc-generated initcall-like functions) during kernel start and module load. Constructors are e.g. used for gcov data initialization. Disable constructor support for usermode Linux to prevent conflicts with host glibc. Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Huang Ying <ying.huang@intel.com> Cc: Li Wei <W.Li@Sun.COM> Cc: Michael Ellerman <michaele@au1.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Heiko Carstens <heicars2@linux.vnet.ibm.com> Cc: Martin Schwidefsky <mschwid2@linux.vnet.ibm.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ipcns: move free_ipcs() protoAlexey Dobriyan2009-06-181-4/+0
| | | | | | | | | | Function is really private to ipc/ and avoid struct kern_ipc_perm forward declaration. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ipcns: make free_ipc_ns() staticAlexey Dobriyan2009-06-181-1/+0
| | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pids: clean up find_task_by_pid variantsChristoph Hellwig2009-06-181-6/+0
| | | | | | | | | | | | | | | | | | | | | | | find_task_by_pid_type_ns is only used to implement find_task_by_vpid and find_task_by_pid_ns, but both of them pass PIDTYPE_PID as first argument. So just fold find_task_by_pid_type_ns into find_task_by_pid_ns and use find_task_by_pid_ns to implement find_task_by_vpid. While we're at it also remove the exports for find_task_by_pid_ns and find_task_by_vpid - we don't have any modular callers left as the only modular caller of he old pre pid namespace find_task_by_pid (gfs2) was switched to pid_task which operates on a struct pid pointer instead of a pid_t. Given the confusion about pid_t values vs namespace that's generally the better option anyway and I think we're better of restricting modules to do it that way. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ptrace_get_task_struct: s/tasklist/rcu/, make it staticOleg Nesterov2009-06-181-1/+0
| | | | | | | | | | | | | | | | - Use rcu_read_lock() instead of tasklist_lock to find/get the task in ptrace_get_task_struct(). - Make it static, it has no callers outside of ptrace.c. - The comment doesn't match the reality, this helper does not do any checks. Beacuse it is really trivial and static I removed the whole comment. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ptrace: tracehook_unsafe_exec(): remove the stale commentOleg Nesterov2009-06-181-1/+1
| | | | | | | | | tracehook_unsafe_exec() doesn't need task_lock(), remove the old comment. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* memcg: add interface to reset limitsDaisuke Nishimura2009-06-181-0/+2
| | | | | | | | | | | | | | | | We don't have an interface to reset mem.limit or memsw.limit now. This patch allows to reset mem.limit or memsw.limit when they are being set to -1. Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com> Cc: YAMAMOTO Takashi <yamamoto@valinux.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* memcg: fix swap accountingKAMEZAWA Hiroyuki2009-06-181-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes mis-accounting of swap usage in memcg. In the current implementation, memcg's swap account is uncharged only when swap is completely freed. But there are several cases where swap cannot be freed cleanly. For handling that, this patch changes that memcg uncharges swap account when swap has no references other than cache. By this, memcg's swap entry accounting can be fully synchronous with the application's behavior. This patch also changes memcg's hooks for swap-out. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Acked-by: Balbir Singh <balbir@in.ibm.com> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com> Cc: YAMAMOTO Takashi <yamamoto@valinux.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* memcg: remove unneeded forward declaration from sched.hLi Zefan2009-06-181-1/+0
| | | | | | | | | | This forward declaration seems pointless. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* memcg: remove mem_cgroup_cache_charge_swapin()Daisuke Nishimura2009-06-181-6/+0
| | | | | | | | | | | mem_cgroup_cache_charge_swapin() isn't used any more, so remove no-op definition of it in header file. Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* memcg: add file-based RSS accountingBalbir Singh2009-06-181-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add file RSS tracking per memory cgroup We currently don't track file RSS, the RSS we report is actually anon RSS. All the file mapped pages, come in through the page cache and get accounted there. This patch adds support for accounting file RSS pages. It should 1. Help improve the metrics reported by the memory resource controller 2. Will form the basis for a future shared memory accounting heuristic that has been proposed by Kamezawa. Unfortunately, we cannot rename the existing "rss" keyword used in memory.stat to "anon_rss". We however, add "mapped_file" data and hope to educate the end user through documentation. [hugh.dickins@tiscali.co.uk: fix mem_cgroup_update_mapped_file_stat oops] Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Li Zefan <lizf@cn.fujitsu.cn> Cc: Paul Menage <menage@google.com> Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: YAMAMOTO Takashi <yamamoto@valinux.co.jp> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* reiserfs: fix warnings with gcc 4.4Jeff Mahoney2009-06-181-8/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | Several code paths in reiserfs have a construct like: if (is_direntry_le_ih(ih = B_N_PITEM_HEAD(src, item_num))) ... which, in addition to being ugly, end up causing compiler warnings with gcc 4.4.0. Previous compilers didn't issue a warning. fs/reiserfs/do_balan.c:1273: warning: operation on `aux_ih' may be undefined fs/reiserfs/lbalance.c:393: warning: operation on `ih' may be undefined fs/reiserfs/lbalance.c:421: warning: operation on `ih' may be undefined fs/reiserfs/lbalance.c:777: warning: operation on `ih' may be undefined I believe this is due to the ih being passed to macros which evaluate the argument more than once. This is old code and we haven't seen any problems with it, but this patch eliminates the warnings. It converts the multiple evaluation macros to static inlines and does a preassignment for the cases that were causing the warnings because that code is just ugly. Reported-by: Chris Mason <mason@oracle.com> Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pca953x: support GPIOLIB GPIO namingDaniel Silverstone2009-06-181-0/+1
| | | | | | | | | | | | Add support to the PCA953x driver to use the GPIOLIB naming facility for GPIOs. Signed-off-by: Daniel Silverstone <dsilvers@simtec.co.uk> Cc: Ben Gardner <bgardner@wabtec.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mpc52xx_psc_spi: convert to cs_control callbackAnton Vorontsov2009-06-181-4/+0
| | | | | | | | | | | | mpc52xx_psc_spi driver is the last user of the legacy activate_cs and deactivate_cs callbacks, so convert the driver to the cs_control hook and remove the legacy callbacks from fsl_spi_platform_data struct. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* spi: move more spi_setup() functionality into coreDavid Brownell2009-06-181-0/+3
| | | | | | | | | | | | | | | | | | | | | | Move some common spi_setup() error checks into the SPI framework from the spi_master controller drivers: - Add a new "mode_bits" field to spi_master - Use that in spi_setup to validate the spi->mode value being requested. Setting this new field is now mandatory for any controller supporting more than vanilla SPI_MODE_0. - Update all spi_master drivers to: * Initialize that field * Remove current spi_setup() checks using that value. This is a net minor code shrink. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* spi: move common spi_setup() functionality into coreDavid Brownell2009-06-181-24/+1
| | | | | | | | | | | | | | | | | | Start moving some spi_setup() functionality into the SPI core from the various spi_master controller drivers: - Make that function stop being an inline; - Move two common idioms from drivers into that new function: * Default bits_per_word to 8 if that field isn't set * Issue a standardized dev_dbg() message This is a net minor source code shrink, and supports enhancments found in some follow-up patches. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* softirq: introduce statistics for softirqKeika Kobayashi2009-06-181-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Statistics for softirq doesn't exist. It will be helpful like statistics for interrupts. This patch introduces counting the number of softirq, which will be exported in /proc/softirqs. When softirq handler consumes much CPU time, /proc/stat is like the following. $ while :; do cat /proc/stat | head -n1 ; sleep 10 ; done cpu 88 0 408 739665 583 28 2 0 0 cpu 450 0 1090 740970 594 28 1294 0 0 ^^^^ softirq In such a situation, /proc/softirqs shows us which softirq handler is invoked. We can see the increase rate of softirqs. <before> $ cat /proc/softirqs CPU0 CPU1 CPU2 CPU3 HI 0 0 0 0 TIMER 462850 462805 462782 462718 NET_TX 0 0 0 365 NET_RX 2472 2 2 40 BLOCK 0 0 381 1164 TASKLET 0 0 0 224 SCHED 462654 462689 462698 462427 RCU 3046 2423 3367 3173 <after> $ cat /proc/softirqs CPU0 CPU1 CPU2 CPU3 HI 0 0 0 0 TIMER 463361 465077 465056 464991 NET_TX 53 0 1 365 NET_RX 3757 2 2 40 BLOCK 0 0 398 1170 TASKLET 0 0 0 224 SCHED 463074 464318 464612 463330 RCU 3505 2948 3947 3673 When CPU TIME of softirq is high, the rates of increase is the following. TIMER : 220/sec : CPU1-3 NET_TX : 5/sec : CPU0 NET_RX : 120/sec : CPU0 SCHED : 40-200/sec : all CPU RCU : 45-58/sec : all CPU The rates of increase in an idle mode is the following. TIMER : 250/sec SCHED : 250/sec RCU : 2/sec It seems many softirqs for receiving packets and rcu are invoked. This gives us help for checking system. Signed-off-by: Keika Kobayashi <kobayashi.kk@ncos.nec.co.jp> Reviewed-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Eric Dumazet <dada1@cosmosbay.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Delete pcibios_select_rootMatthew Wilcox2009-06-171-13/+0
| | | | | | | | This function was only used by pci_claim_resource(), and the last commit deleted that use. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'release' of ↵Linus Torvalds2009-06-171-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Convert ia64 to use int-ll64.h [IA64] Fix build error in paravirt_patchlist.c [IA64] ia64 does not need umount2() syscall [IA64] hook up new rt_tgsigqueueinfo syscall [IA64] msi_ia64.c dmar_msi_type should be static [IA64] remove obsolete hw_interrupt_type [IA64] remove obsolete irq_desc_t typedef [IA64] remove obsolete no_irq_type [IA64] unexport fpswa.h
| * Pull for-2.6.31 into releaseTony Luck2009-06-171-1/+1
| |\
| | * [IA64] Convert ia64 to use int-ll64.hMatthew Wilcox2009-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is generally agreed that it would be beneficial for u64 to be an unsigned long long on all architectures. ia64 (in common with several other 64-bit architectures) currently uses unsigned long. Migrating piecemeal is too painful; this giant patch fixes all compilation warnings and errors that come as a result of switching to use int-ll64.h. Note that userspace will still see __u64 defined as unsigned long. This is important as it affects C++ name mangling. [Updated by Tony Luck to change efi.h:efi_freemem_callback_t to use u64 for start/end rather than unsigned long] Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Merge branch 'for-next' of ↵Linus Torvalds2009-06-174-222/+375
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: mfd: early init for MFD running regulators mfd: fix tmio related warnings mfd: asic3: enable SD/SDIO cell mfd: asic3: enable DS1WM cell mfd: asic3: remove SD/SDIO controller register definitions mfd: asic3: use resource_size macro instead of local variable mfd: add ASIC3 IRQ numbers mfd: asic3: add clock handling for MFD cells mfd: asic3: add asic3_set_register common operation mfd: Fix Kconfig help text for WM8350 mfd: add PCAP driver mfd: add U300 AB3100 core support drivers/mfd: remove obsolete irq_desc_t typedef mfd/pcf50633-gpio.c: add MODULE_LICENSE mfd: Mark WM8350 mask revision as readable to match silicon mfd: Mark clocks_init as non-init in twl4030-core.c mfd: Correct readability of WM8350 register 227
| * | | mfd: fix tmio related warningsSamuel Ortiz2009-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can not have .driver_data as const since platform_set_drvdata() doesnt take a const. The hclk mmc_data field can be const though. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: asic3: remove SD/SDIO controller register definitionsPhilipp Zabel2009-06-171-216/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only the base addresses remain, as they are needed to set up the IOMEM resources. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: add ASIC3 IRQ numbersPhilipp Zabel2009-06-171-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | IRQ number definitions for PWM, LED, SPI and OWM (ds1wm). Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: asic3: add asic3_set_register common operationPhilipp Zabel2009-06-171-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Used to configure single bits of the SDHWCTRL_SDCONF and EXTCF_RESET/SELECT registers needed for DS1WM, MMC/SDIO and PCMCIA functionality. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: add PCAP driverDaniel Ribeiro2009-06-171-0/+256
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PCAP Asic as present on EZX phones is a multi function device with voltage regulators, ADC, touch screen controller, RTC, USB transceiver, leds controller, and audio codec. It has two SPI ports, typically one is connected to the application processor and another to the baseband, this driver provides read/write functions to its registers, irq demultiplexer and ADC queueing/abstraction. This chip is used on a lot of Motorola phones, it was manufactured by TI as a custom product with the name PTWL93017, later this design evolved into the ATLAS PMIC from Freescale (MC13783). Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * | | mfd: add U300 AB3100 core supportLinus Walleij2009-06-171-0/+103
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a core driver for the AB3100 mixed-signal circuit found in the ST-Ericsson U300 series platforms. This driver is a singleton proxy for all accesses to the AB3100 sub-drivers which will be merged on top of this one, RTC, regulators, battery and system power control, vibrator, LEDs, and an ALSA codec. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Reviewed-by: Mike Rapoport <mike@compulab.co.il> Reviewed-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2009-06-176-2/+390
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: [SCSI] aic79xx: make driver respect nvram for IU and QAS settings [SCSI] don't attach ULD to Dell Universal Xport [SCSI] lpfc 8.3.3 : Update driver version to 8.3.3 [SCSI] lpfc 8.3.3 : Add support for Target Reset handler entrypoint [SCSI] lpfc 8.3.3 : Fix a couple of spin_lock and memory issues and a crash [SCSI] lpfc 8.3.3 : FC/FCOE discovery fixes [SCSI] lpfc 8.3.3 : Fix various SLI-3 vs SLI-4 differences [SCSI] qla2xxx: Resolve a performance issue in interrupt [SCSI] cnic, bnx2i: Fix build failure when CONFIG_PCI is not set. [SCSI] nsp_cs: time_out reaches -1 [SCSI] qla2xxx: fix printk format warnings [SCSI] ncr53c8xx: div reaches -1 [SCSI] compat: don't perform unneeded copy in sg_io code [SCSI] zfcp: Update FC pass-through support [SCSI] zfcp: Add FC pass-through support [SCSI] FC Pass Thru support
| * | | [SCSI] aic79xx: make driver respect nvram for IU and QAS settingsJames Bottomley2009-06-151-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch allows the Adaptec firmware to pass on its values for Packetize and QAS. To do this, the settings max_iu and max_qas have been introduced into the SPI transport class and populated from the adaptec NVram tables. Domain validation in the SPI transport class will respect the max settings when configuring to the highest possible speed for testing. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * | | [SCSI] FC Pass Thru supportJames Smart2009-06-125-2/+386
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Attached is the ELS/CT pass-thru patch for the FC Transport. The patch creates a generic framework that lays on top of bsg and the SGIO v4 ioctl in order to pass transaction requests to LLDD's. The interface supports the following operations: On an fc_host basis: Request login to the specified N_Port_ID, creating an fc_rport. Request logout of the specified N_Port_ID, deleting an fc_rport Send ELS request to specified N_Port_ID w/o requiring a login, and wait for ELS response. Send CT request to specified N_Port_ID and wait for CT response. Login is required, but LLDD is allowed to manage login and decide whether it stays in place after the request is satisfied. Vendor-Unique request. Allows a LLDD-specific request to be passed to the LLDD, and the passing of a response back to the application. On an fc_rport basis: Send ELS request to nport and wait for ELS response. Send CT request to nport and wait for CT response. The patch also exports several headers from include/scsi such that they can be available to user-space applications: include/scsi/scsi.h include/scsi/scsi_netlink.h include/scsi/scsi_netlink_fc.h include/scsi/scsi_bsg_fc.h For further information, refer to the last RFC: http://marc.info/?l=linux-scsi&m=123436574018579&w=2 Note: Documentation is still spotty and will be added later. [bharrosh@panasas.com: update for new block API] Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* | | | Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6Linus Torvalds2009-06-171-0/+37
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'linux-next' of git://git.infradead.org/ubi-2.6: (21 commits) UBI: add reboot notifier UBI: handle more error codes UBI: fix multiple spelling typos UBI: fix kmem_cache_free on error patch UBI: print amount of reserved PEBs UBI: improve messages in the WL worker UBI: make gluebi a separate module UBI: remove built-in gluebi UBI: add notification API UBI: do not switch to R/O mode on read errors UBI: fix and clean-up error paths in WL worker UBI: introduce new constants UBI: fix race condition UBI: minor serialization fix UBI: do not panic if volume check fails UBI: add dump_stack in checking code UBI: fix races in I/O debugging checks UBI: small debugging code optimization UBI: improve debugging messages UBI: re-name volumes_mutex to device_mutex ...
| * | | | UBI: add notification APIDmitry Pervushin2009-06-021-0/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | UBI volume notifications are intended to create the API to get clients notified about volume creation/deletion, renaming and re-sizing. A client can subscribe to these notifications using 'ubi_volume_register()' and cancel the subscription using 'ubi_volume_unregister()'. When UBI volumes change, a blocking notifier is called. Clients also can request "added" events on all volumes that existed before client subscribed to the notifications. If we use notifications instead of calling functions like 'ubi_gluebi_xxx()', we can make the MTD emulation layer to be more flexible: build it as a separate module and load/unload it on demand. [Artem: many cleanups, rework locking, add "updated" event, provide device/volume info in notifiers] Signed-off-by: Dmitry Pervushin <dpervushin@embeddedalley.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* | | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-06-171-2/+0
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: SLUB: Fix early boot GFP_DMA allocations SLUB: Don't print out OOM warning for __GFP_NOFAIL SLUB: fix build when !SLUB_DEBUG SLUB: Out-of-memory diagnostics slab: document kzfree() zeroing behavior slab: fix generic PAGE_POISONING conflict with SLAB_RED_ZONE slob: use PG_slab for identifying SLOB pages
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| *---. \ \ \ \ Merge branches 'slab/documentation', 'slab/fixes', 'slob/cleanups' and ↵Pekka Enberg2009-06-171-2/+0
| |\ \ \ \ \ \ \ | | |_|_|_|_|/ / | |/| | | | | | | | | | | | | | 'slub/fixes' into for-linus
| | | | * | | | slob: use PG_slab for identifying SLOB pagesWu Fengguang2009-05-111-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the sake of consistency. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Andi Kleen <andi@firstfloor.org> Acked-by: Matt Mackall <mpm@selenic.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
* | | | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-06-173-75/+0
|\ \ \ \ \ \ \ \ | |/ / / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: get rid of BKL in fs/sysv get rid of BKL in fs/minix get rid of BKL in fs/efs befs ->pust_super() doesn't need BKL Cleanup of adfs headers 9P doesn't need BKL in ->umount_begin() fuse doesn't need BKL in ->umount_begin() No instance of ->bmap() needs BKL remove unlock_kernel() left accidentally ext4: avoid unnecessary spinlock in critical POSIX ACL path ext3: avoid unnecessary spinlock in critical POSIX ACL path
| * | | | | | | Cleanup of adfs headersAl Viro2009-06-173-75/+0
| | |_|_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | Merge branch 'drm-linus' of ↵Linus Torvalds2009-06-177-4/+1922
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon: switch to using late_initcall radeon legacy chips: tv dac bg/dac adj updates drm/radeon: introduce kernel modesetting for radeon hardware drm: Add the TTM GPU memory manager subsystem. drm: Memory fragmentation from lost alignment blocks drm/radeon: fix mobility flags on new PCI IDs.
| * | | | | | | drm/radeon: introduce kernel modesetting for radeon hardwareJerome Glisse2009-06-151-0/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add kernel modesetting support to radeon driver, use the ttm memory manager to manage memory and DRM/GEM to provide userspace API. In order to avoid backward compatibility issue and to allow clean design and code the radeon kernel modesetting use different code path than old radeon/drm driver. When kernel modesetting is enabled the IOCTL of radeon/drm driver are considered as invalid and an error message is printed in the log and they return failure. KMS enabled userspace will use new API to talk with the radeon/drm driver. The new API provide functions to create/destroy/share/mmap buffer object which are then managed by the kernel memory manager (here TTM). In order to submit command to the GPU the userspace provide a buffer holding the command stream, along this buffer userspace have to provide a list of buffer object used by the command stream. The kernel radeon driver will then place buffer in GPU accessible memory and will update command stream to reflect the position of the different buffers. The kernel will also perform security check on command stream provided by the user, we want to catch and forbid any illegal use of the GPU such as DMA into random system memory or into memory not owned by the process supplying the command stream. This part of the code is still incomplete and this why we propose that patch as a staging driver addition, future security might forbid current experimental userspace to run. This code support the following hardware : R1XX,R2XX,R3XX,R4XX,R5XX (radeon up to X1950). Works is underway to provide support for R6XX, R7XX and newer hardware (radeon from HD2XXX to HD4XXX). Authors: Jerome Glisse <jglisse@redhat.com> Dave Airlie <airlied@redhat.com> Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | | | | | drm: Add the TTM GPU memory manager subsystem.Thomas Hellstrom2009-06-155-0/+1788
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TTM is a GPU memory manager subsystem designed for use with GPU devices with various memory types (On-card VRAM, AGP, PCI apertures etc.). It's essentially a helper library that assists the DRM driver in creating and managing persistent buffer objects. TTM manages placement of data and CPU map setup and teardown on data movement. It can also optionally manage synchronization of data on a per-buffer-object level. TTM takes care to provide an always valid virtual user-space address to a buffer object which makes user-space sub-allocation of big buffer objects feasible. TTM uses a fine-grained per buffer-object locking scheme, taking care to release all relevant locks when waiting for the GPU. Although this implies some locking overhead, it's probably a big win for devices with multiple command submission mechanisms, since the lock contention will be minimal. TTM can be used with whatever user-space interface the driver chooses, including GEM. It's used by the upcoming Radeon KMS DRM driver and is also the GPU memory management core of various new experimental DRM drivers. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | | | | | drm/radeon: fix mobility flags on new PCI IDs.Dave Airlie2009-06-151-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These aren't used that much on r600, but may be needed in the future, so get them correct now. Signed-off-by: Dave Airlie <airlied@redhat.com>
* | | | | | | | Merge branch 'for_linus' of ↵Linus Torvalds2009-06-179-5/+85
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (425 commits) V4L/DVB (11870): gspca - main: VIDIOC_ENUM_FRAMESIZES ioctl added. V4L/DVB (12004): poll method lose race condition V4L/DVB (11894): flexcop-pci: dmesg visible names broken V4L/DVB (11892): Siano: smsendian - declare function as extern V4L/DVB (11891): Siano: smscore - bind the GPIO SMS protocol V4L/DVB (11890): Siano: smscore - remove redundant code V4L/DVB (11889): Siano: smsdvb - add DVB v3 events V4L/DVB (11888): Siano: smsusb - remove redundant ifdef V4L/DVB (11887): Siano: smscards - add board (target) events V4L/DVB (11886): Siano: smscore - fix some new GPIO definitions names V4L/DVB (11885): Siano: Add new GPIO management interface V4L/DVB (11884): Siano: smssdio - revert to stand alone module V4L/DVB (11883): Siano: cards - add two additional (USB) devices V4L/DVB (11824): Siano: smsusb - change exit func debug msg V4L/DVB (11823): Siano: smsusb - fix typo in module description V4L/DVB (11822): Siano: smscore - bug fix at get_device_mode V4L/DVB (11821): Siano: smscore - fix isdb-t firmware name V4L/DVB (11820): Siano: smscore - fix byte ordering bug V4L/DVB (11819): Siano: smscore - fix get_common_buffer bug V4L/DVB (11818): Siano: smscards - assign gpio to HPG targets ...
| * | | | | | | | V4L/DVB (11239): sdio: add cards ids for sms (Siano Mobile Silicon) MDTV ↵Uri Shkolnik2009-06-171-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | receivers sdio: add cards id for sms (Siano Mobile Silicon) MDTV receivers Add SDIO vendor ID, and multiple device IDs for various SMS-based MDTV SDIO adapters. Signed-off-by: Uri Shkolnik <uris@siano-ms.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>