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2009-09-02KEYS: Add a keyctl to install a process's session keyring on its parent [try #6]David Howells
Add a keyctl to install a process's session keyring onto its parent. This replaces the parent's session keyring. Because the COW credential code does not permit one process to change another process's credentials directly, the change is deferred until userspace next starts executing again. Normally this will be after a wait*() syscall. To support this, three new security hooks have been provided: cred_alloc_blank() to allocate unset security creds, cred_transfer() to fill in the blank security creds and key_session_to_parent() - which asks the LSM if the process may replace its parent's session keyring. The replacement may only happen if the process has the same ownership details as its parent, and the process has LINK permission on the session keyring, and the session keyring is owned by the process, and the LSM permits it. Note that this requires alteration to each architecture's notify_resume path. This has been done for all arches barring blackfin, m68k* and xtensa, all of which need assembly alteration to support TIF_NOTIFY_RESUME. This allows the replacement to be performed at the point the parent process resumes userspace execution. This allows the userspace AFS pioctl emulation to fully emulate newpag() and the VIOCSETTOK and VIOCSETTOK2 pioctls, all of which require the ability to alter the parent process's PAG membership. However, since kAFS doesn't use PAGs per se, but rather dumps the keys into the session keyring, the session keyring of the parent must be replaced if, for example, VIOCSETTOK is passed the newpag flag. This can be tested with the following program: #include <stdio.h> #include <stdlib.h> #include <keyutils.h> #define KEYCTL_SESSION_TO_PARENT 18 #define OSERROR(X, S) do { if ((long)(X) == -1) { perror(S); exit(1); } } while(0) int main(int argc, char **argv) { key_serial_t keyring, key; long ret; keyring = keyctl_join_session_keyring(argv[1]); OSERROR(keyring, "keyctl_join_session_keyring"); key = add_key("user", "a", "b", 1, keyring); OSERROR(key, "add_key"); ret = keyctl(KEYCTL_SESSION_TO_PARENT); OSERROR(ret, "KEYCTL_SESSION_TO_PARENT"); return 0; } Compiled and linked with -lkeyutils, you should see something like: [dhowells@andromeda ~]$ keyctl show Session Keyring -3 --alswrv 4043 4043 keyring: _ses 355907932 --alswrv 4043 -1 \_ keyring: _uid.4043 [dhowells@andromeda ~]$ /tmp/newpag [dhowells@andromeda ~]$ keyctl show Session Keyring -3 --alswrv 4043 4043 keyring: _ses 1055658746 --alswrv 4043 4043 \_ user: a [dhowells@andromeda ~]$ /tmp/newpag hello [dhowells@andromeda ~]$ keyctl show Session Keyring -3 --alswrv 4043 4043 keyring: hello 340417692 --alswrv 4043 4043 \_ user: a Where the test program creates a new session keyring, sticks a user key named 'a' into it and then installs it on its parent. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-09-02KEYS: Extend TIF_NOTIFY_RESUME to (almost) all architectures [try #6]David Howells
Implement TIF_NOTIFY_RESUME for most of those architectures in which isn't yet available, and, whilst we're at it, have it call the appropriate tracehook. After this patch, blackfin, m68k* and xtensa still lack support and need alteration of assembly code to make it work. Resume notification can then be used (by a later patch) to install a new session keyring on the parent of a process. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> cc: linux-arch@vger.kernel.org Signed-off-by: James Morris <jmorris@namei.org>
2009-08-27avr32: MRMT: correct setup of SPI slavesPeter Ma
For MRMT1/2 add-on card to Atmel ATNGW100. This patch implements the SPI slave setup method created by patch: <<avr32: function for independently setting up SPI slaves>> Signed-off-by: Peter Ma <pma@mediamatech.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-08-27avr32: function for independently setting up SPI slavesPeter Ma
at32ap_spi_setup_slaves() is exposed to allow the addition of SPI slaves to a SPI bus that has already been registered. This is especially useful for add-on cards, which have their own board setup function. at32ap_spi_add_device() has been slightly re-organized, but should be transparent to existing users. So to add a SPI slave, after a SPI bus has already been registered: /* Configure the list of slaves on SPI controller "id" */ at32_spi_setup_slaves(id,spi_board_info,ARRAY_SIZE(spi_board_info)); /* Register the list of slaves */ spi_register_board_info(spi_board_info,ARRAY_SIZE(spi_board_info)); Signed-off-by: Peter Ma <pma@mediamatech.com> [haavard.skinnemoen@atmel.com: trivial whitespace fix] Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-08-27avr32: re-instate MCI WP/CD pin assignments for ATNGW100Peter Ma
The MRMT1 patch mistakenly reverted commit fe272b5bd13d3522f9d1ed35425f1c7af4d8343f. This new patch is intended to correct this, so that both daughtercards should be able to assign GPIO PC25 and PE0 to the MCI driver. Signed-off-by: Peter Ma <pma@mediamatech.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-08-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: favr32: improve touchscreen response avr32/lib: fix unaligned memcpy where len < 4 avr32/lib: fix unaligned memcpy()
2009-08-14Merge branch 'percpu-for-linus' into percpu-for-nextTejun Heo
Conflicts: arch/sparc/kernel/smp_64.c arch/x86/kernel/cpu/perf_counter.c arch/x86/kernel/setup_percpu.c drivers/cpufreq/cpufreq_ondemand.c mm/percpu.c Conflicts in core and arch percpu codes are mostly from commit ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many num_possible_cpus() with nr_cpu_ids. As for-next branch has moved all the first chunk allocators into mm/percpu.c, the changes are moved from arch code to mm/percpu.c. Signed-off-by: Tejun Heo <tj@kernel.org>
2009-08-12Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: arch/microblaze/include/asm/socket.h
2009-08-05net: implement a SO_DOMAIN getsockoptionJan Engelhardt
This sockopt goes in line with SO_TYPE and SO_PROTOCOL. It makes it possible for userspace programs to pass around file descriptors — I am referring to arguments-to-functions, but it may even work for the fd passing over UNIX sockets — without needing to also pass the auxiliary information (PF_INET6/IPPROTO_TCP). Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-05net: implement a SO_PROTOCOL getsockoptionJan Engelhardt
Similar to SO_TYPE returning the socket type, SO_PROTOCOL allows to retrieve the protocol used with a given socket. I am not quite sure why we have that-many copies of socket.h, and why the values are not the same on all arches either, but for where hex numbers dominate, I use 0x1029 for SO_PROTOCOL as that seems to be the next free unused number across a bunch of operating systems, or so Google results make me want to believe. SO_PROTOCOL for others just uses the next free Linux number, 38. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-27mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()Benjamin Herrenschmidt
mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() Upcoming paches to support the new 64-bit "BookE" powerpc architecture will need to have the virtual address corresponding to PTE page when freeing it, due to the way the HW table walker works. Basically, the TLB can be loaded with "large" pages that cover the whole virtual space (well, sort-of, half of it actually) represented by a PTE page, and which contain an "indirect" bit indicating that this TLB entry RPN points to an array of PTEs from which the TLB can then create direct entries. Thus, in order to invalidate those when PTE pages are deleted, we need the virtual address to pass to tlbilx or tlbivax instructions. The old trick of sticking it somewhere in the PTE page struct page sucks too much, the address is almost readily available in all call sites and almost everybody implemets these as macros, so we may as well add the argument everywhere. I added it to the pmd and pud variants for consistency. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David Howells <dhowells@redhat.com> [MN10300 & FRV] Acked-by: Nick Piggin <npiggin@suse.de> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-27favr32: improve touchscreen responseBen Nizette
The ezLCD+101 board (to which an favr-32 is fitted) has a long, unshielded, nasty lead between the touch panel and the ads7843 touch controller. In order to get satisfactory response then, we need to employ every noise-reduction trick in the driver's arsenal. After extensive fiddling I've found some good settings: 1) We keep vref on all the time to dramatically reduce settling times (at the cost of a tiny increase in power consumption). 2) Despite 1 the settling time is still non-zero. 500uS is plenty of time for the signals to settle 3) Despite 1 and 2 there's still a little bit of noise around. By setting a pen recheck delay we make the panel feel less touchy and twitchy. Someone with more time and patience myself might be able to tune this numbers further but these settings are now perfectly acceptable for normal use. Tested on ezLCD+101 though should only improve response on other ezLCD+/ favr-32 boards too. Signed-off-by: Ben Nizette <bn@niasdigital.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-07-27avr32/lib: fix unaligned memcpy where len < 4Sebastian Andrzej Siewior
in case of memcpy(p, unaligned, 1..3) we get 1..3 as the return value instead of p Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-07-27avr32/lib: fix unaligned memcpy()Sebastian Andrzej Siewior
memcpy(p, unaligned, 4..) returns (p + num_of_unaligned_by_copied) instead of p because p is not preserved in the unaligned case. Noticed by Herbert Xu's superior parameter recycling coding technique which let the md4 self-test fail on avr32. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-07-10sched: INIT_PREEMPT_COUNTPeter Zijlstra
Pull the initial preempt_count value into a single definition site. Maintainers for: alpha, ia64 and m68k, please have a look, your arch code is funny. The header magic is a bit odd, but similar to the KERNEL_DS one, CPP waits with expanding these macros until the INIT_THREAD_INFO macro itself is expanded, which is in arch/*/kernel/init_task.c where we've already included sched.h so we're good. Cc: tony.luck@intel.com Cc: rth@twiddle.net Cc: geert@linux-m68k.org Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-09linker script: unify usage of discard definitionTejun Heo
Discarded sections in different archs share some commonality but have considerable differences. This led to linker script for each arch implementing its own /DISCARD/ definition, which makes maintaining tedious and adding new entries error-prone. This patch makes all linker scripts to move discard definitions to the end of the linker script and use the common DISCARDS macro. As ld uses the first matching section definition, archs can include default discarded sections by including them earlier in the linker script. ia64 is notable because it first throws away some ia64 specific subsections and then include the rest of the sections into the final image, so those sections must be discarded before the inclusion. defconfig compile tested for x86, x86-64, powerpc, powerpc64, ia64, alpha, sparc, sparc64 and s390. Michal Simek tested microblaze. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Tested-by: Michal Simek <monstr@monstr.eu> Cc: linux-arch@vger.kernel.org Cc: Michal Simek <monstr@monstr.eu> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Tony Luck <tony.luck@intel.com>
2009-07-08Remove multiple KERN_ prefixes from printk formatsJoe Perches
Commit 5fd29d6ccbc98884569d6f3105aeca70858b3e0f ("printk: clean up handling of log-levels and newlines") changed printk semantics. printk lines with multiple KERN_<level> prefixes are no longer emitted as before the patch. <level> is now included in the output on each additional use. Remove all uses of multiple KERN_<level>s in formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-24linker script: throw away .discard sectionTejun Heo
x86 throws away .discard section but no other archs do. Also, .discard is not thrown away while linking modules. Make every arch and module linking throw it away. This will be used to define dummy variables for percpu declarations and definitions. This patch is based on Ivan Kokshaysky's alpha percpu patch. [ Impact: always throw away everything in .discard ] Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Bryan Wu <cooloney@kernel.org> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Luck <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: David S. Miller <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Chris Zankel <chris@zankel.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@elte.hu>
2009-06-21Move FAULT_FLAG_xyz into handle_mm_fault() callersLinus Torvalds
This allows the callers to now pass down the full set of FAULT_FLAG_xyz flags to handle_mm_fault(). All callers have been (mechanically) converted to the new calling convention, there's almost certainly room for architectures to clean up their code and then add FAULT_FLAG_RETRY when that support is added. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-18ptrace: remove PT_DTRACE from avr32, mn10300, parisc, s390, sh, xtensaOleg Nesterov
avr32, mn10300, parisc, s390, sh, xtensa: They never set PT_DTRACE, but clear it after do_execve(). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: David Howells <dhowells@redhat.com> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Matthew Wilcox <matthew@wil.cx> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Chris Zankel <chris@zankel.net> Acked-by: Roland McGrath <roland@redhat.com> Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-16mm: consolidate init_mm definitionAlexey Dobriyan
* create mm/init-mm.c, move init_mm there * remove INIT_MM, initialize init_mm with C99 initializer * unexport init_mm on all arches: init_mm is already unexported on x86. One strange place is some OMAP driver (drivers/video/omap/) which won't build modular, but it's already wants get_vm_area() export. Somebody should look there. [akpm@linux-foundation.org: add missing #includes] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Cc: Americo Wang <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-15Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: Documentation/feature-removal-schedule.txt drivers/scsi/fcoe/fcoe.c net/core/drop_monitor.c net/core/net-traces.c
2009-06-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: Fix oops on unaligned user access avr32: Add support for Mediama RMTx add-on board for ATNGW100 avr32: Change Atmel ATNGW100 config to add choice of add-on board Fix MIMC200 board LCD init avr32: Fix clash in ATMEL_USART_ flags avr32: remove obsolete hw_interrupt_type avr32: Solves problem with inverted MCI detect pin on Merisc board atmel-mci: Add support for inverted detect pin
2009-06-13avr32: Fix oops on unaligned user accessHaavard Skinnemoen
The unaligned address exception handler (and others) does not scan the fixup tables before oopsing. This is bad because it means passing a badly aligned pointer from user space might crash the kernel. Fix this by scanning the fixup tables in _exception(). This should resolve the issue for unaligned addresses as well as other less common exceptions that might be happening during a userspace access. The page fault handler already does fixup processing. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-06-13Merge branch 'avr32-arch' of ↵Haavard Skinnemoen
git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
2009-06-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: add generic lib/checksum.c asm-generic: add a generic uaccess.h asm-generic: add generic NOMMU versions of some headers asm-generic: add generic atomic.h and io.h asm-generic: add legacy I/O header files asm-generic: add generic versions of common headers asm-generic: make bitops.h usable asm-generic: make pci.h usable directly asm-generic: make get_rtc_time overridable asm-generic: rename page.h and uaccess.h asm-generic: rename atomic.h to atomic-long.h asm-generic: add a generic unistd.h asm-generic: add generic ABI headers asm-generic: add generic sysv ipc headers asm-generic: introduce asm/bitsperlong.h asm-generic: rename termios.h, signal.h and mman.h
2009-06-12module: cleanup FIXME comments about trimming exception table entries.Rusty Russell
Everyone cut and paste this comment from my original one. We now do it generically, so cut the comments. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Amerigo Wang <amwang@redhat.com>
2009-06-11asm-generic: rename atomic.h to atomic-long.hArnd Bergmann
The existing asm-generic/atomic.h only defines the atomic_long type. This renames it to atomic-long.h so we have a place to add a truly generic atomic.h that can be used on all non-SMP systems. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ingo Molnar <mingo@elte.hu>
2009-06-11asm-generic: introduce asm/bitsperlong.hArnd Bergmann
This provides a reliable way for asm-generic/types.h and other files to find out if it is running on a 32 or 64 bit platform. We cannot use CONFIG_64BIT for this in headers that are included from user space because CONFIG symbols are not available there. We also cannot do it inside of asm/types.h because some headers need the word size but cannot include types.h. The solution is to introduce a new header <asm/bitsperlong.h> that defines both __BITS_PER_LONG for user space and BITS_PER_LONG for usage in the kernel. The asm-generic version falls back to 32 bit unless the architecture overrides it, which I did for all 64 bit platforms. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2009-06-11asm-generic: rename termios.h, signal.h and mman.hArnd Bergmann
The existing asm-generic versions are incomplete and included by some architectures. New architectures should be able to use a generic version, so rename the existing files and change all users, which lets us add the new files. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2009-06-08avr32: Add support for Mediama RMTx add-on board for ATNGW100Peter Ma
Signed-off-by: Peter Ma <pma@mediamatech.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-06-08avr32: Change Atmel ATNGW100 config to add choice of add-on boardPeter Ma
Signed-off-by: Peter Ma <pma@mediamatech.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-06-03Fix MIMC200 board LCD initMark Jackson
This patch updates the LCD init code for the MIMC200 board. V2 fixes a .yres typo and corrects an incorrect setup value in the call to at32_add_device_lcdc() Without this patch, the lcd setup is wrong and won't display images correctly (if at all !!) Signed-off-by: Mark Jackson <mpfj@mimc.co.uk> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-06-03avr32: Fix clash in ATMEL_USART_ flagsBen Nizette
At the moment ATMEL_USART_{RTS,CTS,CLK} have the values 1, 2 and 3 respectively. Given these are used in bitmasks, trying to turn on the CLK line will in fact turn on the RTS and CTS lines as well. Change the value of ATMEL_USART_CLK to 4. Signed-off-by: Ben Nizette <bn@niasdigital.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-05-20syscall: Sort out syscall_restart name clash.Eric W. Biederman
Stephen Rothwell <sfr@canb.auug.org.au> writes: > Today's linux-next build of at least some av32 and arm configs failed like this: > > arch/avr32/kernel/signal.c:216: error: conflicting types for 'restart_syscall' > include/linux/sched.h:2184: error: previous definition of 'restart_syscall' was here > > Caused by commit 690cc3ffe33ac4a2857583c22d4c6244ae11684d ("syscall: > Implement a convinience function restart_syscall") from the net tree. Grrr. Some days it feels like all of the good names are already taken. Let's just rename the two static users in arm and avr32 to get this sorted out. Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-13avr32: remove obsolete hw_interrupt_typeThomas Gleixner
The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have been kept around for migration reasons. After more than two years it's time to remove them finally. This patch cleans up one of the remaining users. When all such patches hit mainline we can remove the defines and typedefs finally. Impact: cleanup Convert the last remaining users to struct irq_chip and remove the define. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-05-01avr32: drop unused CLEAN_FILESSam Ravnborg
Left over from before we used arch/avr32/include Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Jesper Nilsson <jesper.nilsson@axis.com>
2009-04-21clocksource: pass clocksource to read() callbackMagnus Damm
Pass clocksource pointer to the read() callback for clocksources. This allows us to share the callback between multiple instances. [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods] [akpm@linux-foundation.org: cleanup] Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-08avr32: Solves problem with inverted MCI detect pin on Merisc boardJonas Larsson
Same patch as before, modified to use bool. This patch solves the problem with the inverted mci detect pin on Merisc boards. Signed-off-by: Jonas Larsson <jonas.larsson@martinsson.se> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-04-07dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)Yang Hongyang
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-05Merge branch 'avr32-arch' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6 * 'avr32-arch' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: add hardware handshake support to atmel_serial avr32: add RTS/CTS/CLK pin selection for the USARTs Add RTC support for Merisc boards avr32: at32ap700x: setup DMA for AC97C in the machine code avr32: at32ap700x: setup DMA for ABDAC in the machine code Add Merisc board support avr32: use gpio_is_valid() to check USBA vbus_pin I/O line atmel-usba-udc: use gpio_is_valid() to check vbus_pin I/O line avr32: fix timing LCD parameters for EVKLCD10X boards avr32: use GPIO line PB15 on EVKLCD10x boards for backlight avr32: configure MCI detect and write protect pins for EVKLCD10x boards avr32: set pin mask to alternative 18 bpp for EVKLCD10x boards avr32: add pin mask for 18-bit color on the LCD controller avr32: fix 15-bit LCDC pin mask to use MSB lines
2009-04-05Merge branch 'tracing-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (413 commits) tracing, net: fix net tree and tracing tree merge interaction tracing, powerpc: fix powerpc tree and tracing tree interaction ring-buffer: do not remove reader page from list on ring buffer free function-graph: allow unregistering twice trace: make argument 'mem' of trace_seq_putmem() const tracing: add missing 'extern' keywords to trace_output.h tracing: provide trace_seq_reserve() blktrace: print out BLK_TN_MESSAGE properly blktrace: extract duplidate code blktrace: fix memory leak when freeing struct blk_io_trace blktrace: fix blk_probes_ref chaos blktrace: make classic output more classic blktrace: fix off-by-one bug blktrace: fix the original blktrace blktrace: fix a race when creating blk_tree_root in debugfs blktrace: fix timestamp in binary output tracing, Text Edit Lock: cleanup tracing: filter fix for TRACE_EVENT_FORMAT events ftrace: Using FTRACE_WARN_ON() to check "freed record" in ftrace_release() x86: kretprobe-booster interrupt emulation code fix ... Fix up trivial conflicts in arch/parisc/include/asm/ftrace.h include/linux/memory.h kernel/extable.c kernel/module.c
2009-04-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits) trivial: Update my email address trivial: NULL noise: drivers/mtd/tests/mtd_*test.c trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h trivial: Fix misspelling of "Celsius". trivial: remove unused variable 'path' in alloc_file() trivial: fix a pdlfush -> pdflush typo in comment trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL trivial: wusb: Storage class should be before const qualifier trivial: drivers/char/bsr.c: Storage class should be before const qualifier trivial: h8300: Storage class should be before const qualifier trivial: fix where cgroup documentation is not correctly referred to trivial: Give the right path in Documentation example trivial: MTD: remove EOL from MODULE_DESCRIPTION trivial: Fix typo in bio_split()'s documentation trivial: PWM: fix of #endif comment trivial: fix typos/grammar errors in Kconfig texts trivial: Fix misspelling of firmware trivial: cgroups: documentation typo and spelling corrections trivial: Update contact info for Jochen Hein trivial: fix typo "resgister" -> "register" ...
2009-04-02Simplify copy_thread()Alexey Dobriyan
First argument unused since 2.3.11. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02Merge branch 'tracing/core-v2' into tracing-for-linusIngo Molnar
Conflicts: include/linux/slub_def.h lib/Kconfig.debug mm/slob.c mm/slub.c
2009-04-01generic debug pageallocAkinobu Mita
CONFIG_DEBUG_PAGEALLOC is now supported by x86, powerpc, sparc64, and s390. This patch implements it for the rest of the architectures by filling the pages with poison byte patterns after free_pages() and verifying the poison patterns before alloc_pages(). This generic one cannot detect invalid page accesses immediately but invalid read access may cause invalid dereference by poisoned memory and invalid write access can be detected after a long delay. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-01avr32: add RTS/CTS/CLK pin selection for the USARTsPeter Ma
Adds extra parameter to AT32 at32_map_usart(), so as to reserve RTS/CTS/CLK pins. All boards under arch/avr32/boards have been updated (trivial change), but not all have been tested. Signed-off-by: Peter Ma <pma@mediamatech.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-03-30Add RTC support for Merisc boardsJonas Larsson
This patch adds RTC support for the Merisc boards. Signed-off-by: Jonas Larsson <jonas.larsson@martinsson.se> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-03-30trivial: fix typos/grammar errors in Kconfig textsMatt LaPlante
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-03-27Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2Ingo Molnar
Conflicts: arch/parisc/kernel/irq.c arch/x86/include/asm/fixmap_64.h arch/x86/include/asm/setup.h kernel/irq/handle.c Semantic merge: arch/x86/include/asm/fixmap.h Signed-off-by: Ingo Molnar <mingo@elte.hu>