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2012-09-26s390/sysinfo,topology: fix cpu topology maximum nesting detectionHeiko Carstens4-20/+31
The maximum nesting of the cpu topology is evaluated when /proc/sysinfo is the first time read. This happens without a lock and a concurrent reader on a different cpu can see and use an invalid intermediate value. Besides the fact that this race is quite unlikely the worst thing that could happen is that /proc/sysinfo would contain bogus information about the machine's cpu topology. Nevertheless this should be fixed. So move the detection code to the early machine detection code and since now the value is early available use it in the topology code as well. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/mm: implement __get_user_pages_fast()Gerald Schaefer1-0/+37
This patch introduces the __get_user_pages_fast() function on s390, which will be needed with CONFIG_TRANSPARENT_HUGEPAGE and futex. Signed-off-by: Gerald Schaefer <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/sysinfo: add additional z196 fields to outputHeiko Carstens2-14/+39
Add a couple of missing fields that were introduced with z196. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/sysinfo: convert /proc/sysinfo to seqfileHeiko Carstens1-167/+115
The current proc implementation of the /proc/sysinfo file writes all informations contained in all system information blocks to a single page. This is done by calling sprintf all the time in the expectation that everything will fit into a single page. This however is not necessarily true if the configuration of a machine is very large. So convert /proc/sysinfo to avoid writing into random memory regions. For readability reasons a couple of lines are longer than 80 characters. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/topology: remove sysinfo header include, add forward declaration insteadHeiko Carstens2-1/+2
Any change to sysinfo.h causes a whole kernel recompile since sysinfo.h is included by topology.h, which again is used nearly everywhere. So remove that include and add a forward declaration instead. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/mm: shorten addressing mode initializationHeiko Carstens1-18/+10
Shorten the code for addressing mode initialization. Also add missing __init annotations, since this code is only used during kernel initialization. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/mm: rename addressing_mode to s390_user_modeHeiko Carstens7-14/+14
Renaming the globally visible variable "user_mode" to "addressing_mode" in order to fix a name clash was not a good idea. (Commit 37fe1d73 "s390/mm: rename user_mode variable to addressing_mode") Looking at the code after a couple of weeks one thinks: addressing mode of what? So rename the variable again. This time to s390_user_mode. Which hopefully makes more sense. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/partitions: make partition detection independent from DASD ioctlsStefan Weinhuber1-183/+272
In some usage scenarios it is desireable to work with disk images or virtualized DASD devices. One problem that prevents such applications is the partition detection in ibm.c. Currently it works only for devices that support the BIODASDINFO2 ioctl, in other words, it only works for devices that belong to the DASD device driver. The information gained from the BIODASDINFO2 ioctl is only for a small set of legacy cases abolutely necessary. All current VOL1, LNX1 and CMS1 type of disk labels can be interpreted correctly without this information, as long as the generic HDIO_GETGEO ioctl works and provides a correct disk geometry. This patch makes the ibm.c partition detection as independent as possible from the BIODASDINFO2 ioctl. Only the following two cases are still restricted to real DASDs: - An FBA DASD, or LDL formatted ECKD DASD without any disk label. - An old style LNX1 label (without large volume support) on a disk with inconsistent device geometry. Signed-off-by: Stefan Weinhuber <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/mm: change default addressing modeHeiko Carstens1-11/+1
Change the default addressing mode so that user space runs in primary space and the kernel runs in home space. In addition remove the "switch_amode" kernel parameter so all users who already specified they want the new default behaviour will stay in the "switched" mode instead of in the opposite they intended. If there is a need to switch addressing modes, this can be done with the "user_mode" kernel parameter: user_mode=home Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/smp: avoid concurrent write to sigp status fieldHeiko Carstens1-6/+7
When a sigp instruction is issued it may store a status. This status is currently stored in a per cpu field of the target cpu. If multiple cpus issue a sigp instruction with the same target cpu and a status is stored the result is not necessarily as expected. Currently this is not an issue: - on cpu hotplug no sigps, except "restart" and "sense" are sent to the target cpu. - on external call we don't look at the status if it is stored - on sense running the condition code "status stored" is sufficient to tell if a cpu is running or not Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/processor: use ARRAY_SIZE instead of hard coded valueHeiko Carstens1-2/+2
Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/cache: add cpu cache information to /proc/cpuinfoHeiko Carstens3-10/+43
Add a line for each cpu cache to /proc/cpuinfo. Since we only have information of private cpu caches in sysfs we add a line for each cpu cache in /proc/cpuinfo which will also contain information about shared caches. For a z196 machine /proc/cpuinfo now looks like: vendor_id : IBM/S390 bogomips per cpu: 14367.00 features : esan3 zarch stfle msa ldisp eimm dfp etf3eh highgprs cache0 : level=1 type=Data scope=Private size=64K line_size=256 associativity=4 cache1 : level=1 type=Instruction scope=Private size=128K line_size=256 associativity=8 cache2 : level=2 type=Unified scope=Private size=1536K line_size=256 associativity=12 cache3 : level=3 type=Unified scope=Shared size=24576K line_size=256 associativity=12 cache4 : level=4 type=Unified scope=Shared size=196608K line_size=256 associativity=24 processor 0: version = FF, identification = 000123, machine = 2817 processor 1: version = FF, identification = 100123, machine = 2817 processor 2: version = FF, identification = 200123, machine = 2817 processor 3: version = FF, identification = 200123, machine = 2817 Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390: add support for transactional memoryMartin Schwidefsky14-21/+151
Allow user-space processes to use transactional execution (TX). If the TX facility is available user space programs can use transactions for fine-grained serialization based on the data objects that are referenced during a transaction. This is useful for lockless data structures and speculative compiler optimizations. Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390: add support for runtime instrumentationJan Glauber14-3/+300
Allow user-space threads to use runtime instrumentation (RI). To enable RI for a thread there is a new s390 specific system call, sys_s390_runtime_instr, that takes as parameter a realtime signal number. If the RI facility is available the system call sets up a control block for the calling thread with the appropriate permissions for the thread to modify the control block. The user-space thread can then use the store and modify RI instructions to alter the control block and start/stop the instrumentation via RION/RIOFF. If the user specified program buffer runs full RI triggers an external interrupt. The external interrupt is translated to a real-time signal that is delivered to the thread that enabled RI on that CPU. The number of the real-time signal is the number specified in the RI system call. So, user-space can select any available real-time signal number in case the application itself uses real-time signals for other purposes. The kernel saves the RI control blocks on task switch only if the running thread was enabled for RI. Therefore, the performance impact on task switch should be negligible if RI is not used. RI is only enabled for user-space mode and is disabled for the supervisor state. Reviewed-by: Heiko Carstens <[email protected]> Signed-off-by: Jan Glauber <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/scm_block: force cluster writesSebastian Ott5-3/+310
Force writes to Storage Class Memory (SCM) to be in done in clusters. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390: add scm block driverSebastian Ott5-0/+597
Block device driver for Storage Class Memory (SCM). This driver provides a block device interface for each available SCM increment. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/eadm_sch: add support for irq statisticsSebastian Ott3-0/+5
Add support for EADM interrupt statistics in /proc/interrupts. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/cio: add eadm subchannel driverSebastian Ott5-0/+431
This driver allows usage of EADM subchannels. EADM subchannels act as a communication vehicle for SCM increments. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390: add scm notificationSebastian Ott4-1/+74
Detect an scm change notification in store event information. Update affected scm devices and notify their drivers. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390: add scm bus driverSebastian Ott4-0/+330
Bus driver to manage Storage Class Memory. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/chsc: implement store SCM informationSebastian Ott2-0/+70
chsc_scm_info will be used to detect all available increments of storage class memory. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390: add eadm related structuresSebastian Ott4-3/+159
Add structures to be used by the eadm subchannel driver. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390: add eadm facility bitsSebastian Ott5-31/+42
Add the eadm facility bits to the css characteristics and move them to a new header. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/css: export css_sched_sch_todoSebastian Ott1-0/+1
Allow subchannel drivers build as a module to schedule subchannel work. Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/zcrypt: Add support for CEX4 crypto cardHolger Dengler5-16/+170
New zcrypt module supports IBM CryptoExpress 4 cards. Signed-off-by: Holger Dengler <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/zcrypt: Separate msgtype implementation from card modules.Holger Dengler10-1124/+1707
Msgtype implementations are now separated from card specific modules and can be dynamically registered. Existing msgtype implementations are restructured in modules. Signed-off-by: Holger Dengler <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/ap: Add functiton facility information as AP device attribute.Holger Dengler3-22/+52
Add the function facility information as new ap_device and sysfs attribute. Also make the number of requests in device queue and in device driver queue accessible in sysfs. Reviewed-by: Ingo Tuchscherer <[email protected]> Signed-off-by: Holger Dengler <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/ap: configuration information exploitationHolger Dengler2-15/+128
Query AP configuration information. Improve performance of AP bus scans by skipping AP device probing, if the AP deviec is not configured. Reviewed-by: Ingo Tuchscherer <[email protected]> Signed-off-by: Holger Dengler <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/kexec: move machine_crash_shutdown() to machine_kexec.cHeiko Carstens3-15/+5
machine_crash_shutdown() was the only function in crash.c. So move the function and delete one file. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/cpu hotplug: mask out CPU_TASKS_FROZEN in cu hotplug notifiersHeiko Carstens3-7/+3
Unify all our cpu hotplug notifiers to mask out the CPU_TASKS_FROZEN bit, so we don't have to add all the *_FROZEN variant cases to the notifiers. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/smp: fix smp_find_processor_id() argument mismatchHeiko Carstens1-1/+1
For SMP and !SMP smp_find_processor_id() either takes a u16 or an unsigned int argument. Fix this so both versions take a u16. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/cpu hotplug: use hotcpu_notifier() instead of register_cpu_notifier()Heiko Carstens1-5/+1
Saves a couple of lines of code. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/kvm: Improve Kconfig help text.Cornelia Huck1-4/+5
CONFIG_S390_GUEST determines whether virtio guest drivers are built, and the virtio console is not enforced as default. Signed-off-by: Cornelia Huck <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/kconfig: split the s390 base menuJan Glauber2-191/+196
Split the base menu into more descriptive categories like processor, memory, etc. and move virtualization related entries to the Virtualization menu. Also select KEXEC unconditionally. Signed-off-by: Jan Glauber <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/cache: expose cpu cache topology via sysfsHeiko Carstens2-0/+360
Expose cpu cache topology via sysfs. The created sysfs directory structure is compatible to what x86, ia64 and powerpc have. On s390 we expose only information about cpu caches which are private to a cpu via sysfs . Caches which are shared between cpus do not have a sysfs representation. The reason for that is that the file "shared_cpu_map" is mandatory and only if running under LPAR it is possible to tell which cpus share which cache. Second level hypervisors however do not and cannot expose that information to guests. In order to have a consistent view we made the choice to always only expose information about private cpu caches via sysfs. Example for a z196 cpu (cpu1 in /sys/devices/cpu): cpu1/cache/index0/size -- 64K cpu1/cache/index0/type -- Data cpu1/cache/index0/level -- 1 cpu1/cache/index0/number_of_sets -- 64 cpu1/cache/index0/shared_cpu_map -- 00000000,00000002 cpu1/cache/index0/shared_cpu_list -- 1 cpu1/cache/index0/coherency_line_size -- 256 cpu1/cache/index0/ways_of_associativity -- 4 cpu1/cache/index1/size -- 128K cpu1/cache/index1/type -- Instruction cpu1/cache/index1/level -- 1 cpu1/cache/index1/number_of_sets -- 64 cpu1/cache/index1/shared_cpu_map -- 00000000,00000002 cpu1/cache/index1/shared_cpu_list -- 1 cpu1/cache/index1/coherency_line_size -- 256 cpu1/cache/index1/ways_of_associativity -- 8 cpu1/cache/index2/size -- 1536K cpu1/cache/index2/type -- Unified cpu1/cache/index2/level -- 2 cpu1/cache/index2/number_of_sets -- 512 cpu1/cache/index2/shared_cpu_map -- 00000000,00000002 cpu1/cache/index2/shared_cpu_list -- 1 cpu1/cache/index2/coherency_line_size -- 256 cpu1/cache/index2/ways_of_associativity -- 12 Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390: enable large page support with CONFIG_DEBUG_PAGEALLOCGerald Schaefer2-3/+1
So far, large page support was completely disabled with CONFIG_DEBUG_PAGEALLOC, although it would be sufficient if only the large page kernel mapping was disabled. This patch enables large page support with CONFIG_DEBUG_PAGEALLOC, while it prevents the large kernel mapping in that case. Signed-off-by: Gerald Schaefer <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/string: provide asm lib functions for memcpy and memcmpHeiko Carstens7-81/+213
Our memcpy and memcmp variants were implemented by calling the corresponding gcc builtin variants. However gcc is free to replace a call to __builtin_memcmp with a call to memcmp which, when called, will result in an endless recursion within memcmp. So let's provide asm variants and also fix the variants that are used for uncompressing the kernel image. In addition remove all other occurences of builtin function calls. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/bpf,jit: improve code generationHeiko Carstens1-4/+37
Make use of new immediate instructions that came with the extended immediate and general instruction extension facilities. Reviewed-by: Martin Schwidefsky <[email protected]> Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-26s390/bpf,jit: BPF Just In Time compiler for s390Martin Schwidefsky7-0/+898
The s390 implementation of the JIT compiler for packet filter speedup. Reviewed-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2012-09-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds17-61/+152
Pull more networking fixes from David Miller: 1) Eric Dumazet discovered and fixed what turned out to be a family of bugs. These functions were using pskb_may_pull() which might need to reallocate the linear SKB data buffer, but the callers were not expecting this possibility. The callers have cached pointers to the packet header areas, and would need to reload them if we were to continue using pskb_may_pull(). So they could end up reading garbage. It's easier to just change these RAW4/RAW6/MIP6 routines to use skb_header_pointer() instead of pskb_may_pull(), which won't modify the linear SKB data area. 2) Dave Jone's syscall spammer caught a case where a non-TCP socket can call down into the TCP keepalive code. The case basically involves creating a raw socket with sk_protocol == IPPROTO_TCP, then calling setsockopt(sock_fd, SO_KEEPALIVE, ...) Fixed by Eric Dumazet. 3) Bluetooth devices do not get configured properly while being powered on, resulting in always using legacy pairing instead of SSP. Fix from Andrzej Kaczmarek. 4) Bluetooth cancels delayed work erroneously, put stricter checks in place. From Andrei Emeltchenko. 5) Fix deadlock between cfg80211_mutex and reg_regdb_search_mutex in cfg80211, from Luis R. Rodriguez. 6) Fix interrupt double release in iwlwifi, from Emmanuel Grumbach. 7) Missing module license in bcm87xx driver, from Peter Huewe. 8) Team driver can lose port changed events when adding devices to a team, fix from Jiri Pirko. 9) Fix endless loop when trying ot unregister PPPOE device in zombie state, from Xiaodong Xu. 10) batman-adv layer needs to set MAC address of software device earlier, otherwise we call tt_local_add with it uninitialized. 11) Fix handling of KSZ8021 PHYs, it's matched currently by KS8051 but that doesn't program the device properly. From Marek Vasut. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: ipv6: mip6: fix mip6_mh_filter() ipv6: raw: fix icmpv6_filter() net: guard tcp_set_keepalive() to tcp sockets phy/micrel: Add missing header to micrel_phy.h phy/micrel: Rename KS80xx to KSZ80xx phy/micrel: Implement support for KSZ8021 batman-adv: Fix symmetry check / route flapping in multi interface setups batman-adv: Fix change mac address of soft iface. pppoe: drop PPPOX_ZOMBIEs in pppoe_release team: send port changed when added ipv4: raw: fix icmp_filter() net/phy/bcm87xx: Add MODULE_LICENSE("GPL") to GPL driver iwlwifi: don't double free the interrupt in failure path cfg80211: fix possible circular lock on reg_regdb_search() Bluetooth: Fix not removing power_off delayed work Bluetooth: Fix freeing uninitialized delayed works Bluetooth: mgmt: Fix enabling LE while powered off Bluetooth: mgmt: Fix enabling SSP while powered off
2012-09-25ipv6: mip6: fix mip6_mh_filter()Eric Dumazet1-9/+11
mip6_mh_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-09-25Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-mergeDavid S. Miller2-8/+12
Included fixes: - fix the behaviour of batman-adv in case of virtual interface MAC change event - fix symmetric link check in neighbour selection Signed-off-by: David S. Miller <[email protected]>
2012-09-25ipv6: raw: fix icmpv6_filter()Eric Dumazet1-11/+10
icmpv6_filter() should not modify its input, or else its caller would need to recompute ipv6_hdr() if skb->head is reallocated. Use skb_header_pointer() instead of pskb_may_pull() and change the prototype to make clear both sk and skb are const. Also, if icmpv6 header cannot be found, do not deliver the packet, as we do in IPv4. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-09-25Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-shLinus Torvalds1-0/+2
Pull SuperH fix from Paul Mundt: "One last minute regression fix.." * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: sh: pfc: Fix up GPIO mux type reconfig case.
2012-09-25Merge branch 'akpm' (sundry from Andrew)Linus Torvalds4-2/+5
Merge misc fixes from Andrew Morton: "One maintainer change and three bugfixes" * emailed patches from Andrew Morton <[email protected]>: (4 commits) c/r: prctl: fix build error for no-MMU case lib/flex_proportions.c: fix corruption of denominator in flexible proportions checksyscalls: fix "here document" handling pwm-backlight: take over maintenance
2012-09-25c/r: prctl: fix build error for no-MMU caseMark Salter1-0/+1
Commit 1ad75b9e1628 ("c/r: prctl: add minimal address test to PR_SET_MM") added some address checking to prctl_set_mm() used by checkpoint-restore. This causes a build error for no-MMU systems: kernel/sys.c: In function 'prctl_set_mm': kernel/sys.c:1868:34: error: 'mmap_min_addr' undeclared (first use in this function) The test for mmap_min_addr doesn't make a lot of sense for no-MMU code as noted in commit 6e1415467614 ("NOMMU: Optimise away the {dac_,}mmap_min_addr tests"). This patch defines mmap_min_addr as 0UL in the no-MMU case so that the compiler will optimize away tests for "addr < mmap_min_addr". Signed-off-by: Mark Salter <[email protected]> Reviewed-by: Cyrill Gorcunov <[email protected]> Cc: <[email protected]> [3.6.x] Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-09-25lib/flex_proportions.c: fix corruption of denominator in flexible proportionsJan Kara1-1/+1
When racing with CPU hotplug, percpu_counter_sum() can return negative values for the number of observed events. This confuses fprop_new_period(), which uses unsigned type and as a result number of events is set to big *positive* number. From that moment on, things go pear shaped and can result e.g. in division by zero as denominator is later truncated to 32-bits. This bug causes a divide-by-zero oops in bdi_dirty_limit() in Borislav's 3.6.0-rc6 based kernel. Fix the issue by using a signed type in fprop_new_period(). That makes us bail out from the function without doing anything (mistakenly) thinking there are no events to age. That makes aging somewhat inaccurate but getting accurate data would be rather hard. Signed-off-by: Jan Kara <[email protected]> Reported-by: Borislav Petkov <[email protected]> Reported-by: Srivatsa S. Bhat <[email protected]> Cc: Wu Fengguang <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-09-25checksyscalls: fix "here document" handlingHeiko Carstens1-1/+1
"echo" doesn't read from stdin, therefore the checksyscalls script didn't warn about not implemented system calls anymore since 29dc54c6 ("checksyscalls: Use arch/x86/syscalls/syscall_32.tbl as source"). Use "cat" instead of "echo" which handles this correctly. Signed-off-by: Heiko Carstens <[email protected]> Cc: Michal Marek <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Cyrill Gorcunov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-09-25pwm-backlight: take over maintenanceThierry Reding1-0/+2
Since the pwm-backlight driver is lacking a proper maintainer and is the heaviest user of the PWM framework I'm taking over maintenance. Signed-off-by: Thierry Reding <[email protected]> Acked-by: Arun Murthy <[email protected]> Cc: Matthew Garrett <[email protected]> Cc: Robert Morell <[email protected]> Cc: Dilan Lee <[email protected]> Cc: Axel Lin <[email protected]> Cc: Mark Brown <[email protected]> Cc: Alexandre Courbot <[email protected]> Acked-by: Sachin Kamat <[email protected]> Acked-by: Linus Walleij <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2012-09-25sh: pfc: Fix up GPIO mux type reconfig case.Paul Mundt1-0/+2
Some drivers need to switch pin states between GPIO and pin function at runtime, which was inadvertently broken in the pinctrl driver for GPIOs being bound to a specific direction. This fixes up the request path to ensure that previously configured GPIOs don't cause us to inadvertently error out with an unsupported mux on reconfig, which in practice is primarily aimed at trapping pull-up/down users that have yet to be implemented under the new API. Fixes up regressions in the TPU PWM driver, amongst others. Reported-by: Laurent Pinchart <[email protected]> Tested-by: Laurent Pinchart <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
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