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* Merge branch 'for-linus' of ↵Linus Torvalds2013-03-021-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull signal/compat fixes from Al Viro: "Fixes for several regressions introduced in the last signal.git pile, along with fixing bugs in truncate and ftruncate compat (on just about anything biarch at least one of those two had been done wrong)." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: compat: restore timerfd settime and gettime compat syscalls [regression] braino in "sparc: convert to ksignal" fix compat truncate/ftruncate switch lseek to COMPAT_SYSCALL_DEFINE lseek() and truncate() on sparc really need sign extension
| * fix compat truncate/ftruncateAl Viro2013-02-251-2/+2
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2013-03-0270-508/+744
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS updates from Ralf Baechle: o Add basic support for the Mediatek/Ralink Wireless SoC family. o The Qualcomm Atheros platform is extended by support for the new QCA955X SoC series as well as a bunch of patches that get the code ready for OF support. o Lantiq and BCM47XX platform have a few improvements and bug fixes. o MIPS has sent a few patches that get the kernel ready for the upcoming microMIPS support. o The rest of the series is made up of small bug fixes and cleanups that relate to various parts of the MIPS code. The biggy in there is a whitespace cleanup. After I was sent another set of whitespace cleanup patches I decided it was the time to clean the whitespace "issues" for once and and that touches many files below arch/mips/. Fix up silly conflicts, mostly due to whitespace cleanups. * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (105 commits) MIPS: Quit exporting kernel internel break codes to uapi/asm/break.h MIPS: remove broken conditional inside vpe loader code MIPS: SMTC: fix implicit declaration of set_vi_handler MIPS: early_printk: drop __init annotations MIPS: Probe for and report hardware virtualization support. MIPS: ath79: add support for the Qualcomm Atheros AP136-010 board MIPS: ath79: add USB controller registration code for the QCA955X SoCs MIPS: ath79: add PCI controller registration code for the QCA955X SoCs MIPS: ath79: add WMAC registration code for the QCA955X SoCs MIPS: ath79: register UART for the QCA955X SoCs MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear} MIPS: ath79: add GPIO setup code for the QCA955X SoCs MIPS: ath79: add IRQ handling code for the QCA955X SoCs MIPS: ath79: add clock setup code for the QCA955X SoCs MIPS: ath79: add SoC detection code for the QCA955X SoCs MIPS: ath79: add early printk support for the QCA955X SoCs MIPS: ath79: fix WMAC IRQ resource assignment mips: reserve elfcorehdr mips: Make sure kernel memory is in iomem MIPS: ath79: use dynamically allocated USB platform devices ...
| * \ Merge branch 'mips-next-3.9' of ↵Ralf Baechle2013-02-219-37/+214
| |\ \ | | | | | | | | | | | | git://git.linux-mips.org/pub/scm/john/linux-john into mips-for-linux-next
| | * | MIPS: remove broken conditional inside vpe loader codeJohn Crispin2013-02-191-12/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit [1] breaks builds and results in the following error arch/mips/kernel/vpe.c: In function 'vpe_run': arch/mips/kernel/vpe.c:708:16: error: invalid type argument of '->' (have 'struct list_head') Taking a closer look at the conditional we notice that list_first_entry wont ever return NULL. The easiest fix is to just drop the dead code. [1] commit 3d2d03247632920aa21b42a0b032a4ffd44ce15e MIPS: vpe.c: Fix null pointer dereference in print arguments. Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | MIPS: SMTC: fix implicit declaration of set_vi_handlerFlorian Fainelli2013-02-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following implicit declaration while building with MIPS SMTC support enabled: arch/mips/kernel/smtc.c: In function 'setup_cross_vpe_interrupts': arch/mips/kernel/smtc.c:1205:2: error: implicit declaration of function 'set_vi_handler' [-Werror=implicit-function-declaration] cc1: all warnings being treated as errors Signed-off-by: Florian Fainelli <florian@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4931/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | MIPS: early_printk: drop __init annotationsAaro Koskinen2013-02-191-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We cannot use __init for earlyprintk code or data, since the kernel parameter "keep_bootcon" allows leaving the boot console enabled. Currently MIPS will crash/hang/die if you use keep_bootcon. The patch fixes it at least on Lemote FuLoong mini-PC. Changes for other boards were done based on what I could find with grep... Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Patchwork: http://patchwork.linux-mips.org/patch/4935/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | MIPS: Probe for and report hardware virtualization support.David Daney2013-02-192-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The presence of the MIPS Virtualization Application-Specific Extension is indicated by CP0_Config3[23]. Probe for this and report it in /proc/cpuinfo. Signed-off-by: David Daney <david.daney@cavium.com> Patchwork: http://patchwork.linux-mips.org/patch/4904/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | mips: reserve elfcorehdrCorey Minyard2013-02-191-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | /proc/vmcore wasn't showing up in kdump kernels. It turns that that for Octeon, the memory used by elfcorehdr wasn't being set aside properly and it was getting clobbered before /proc/vmcore could get it. So reserve the memory if it shows up in a memory area managed by the kernel. Signed-off-by: Corey Minyard <cminyard@mvista.com> Acked-by: David Daney <ddaney@caviumnetworks.com> Cc: Ralf Baechle <ralf@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/4936/
| | * | mips: Make sure kernel memory is in iomemCorey Minyard2013-02-191-21/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kernel memory isn't necessarily added to the memory tables, so it wouldn't show up in /proc/iomem. This was breaking kdump, which requires these memory addresses to work correctly. Signed-off-by: Corey Minyard <cminyard@mvista.com> Acked-by: David Daney <ddaney@caviumnetworks.com> Cc: Ralf Baechle <ralf@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/4937/
| | * | MIPS: add irqdomain support for the CPU IRQ controllerGabor Juhos2013-02-171-0/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add code to load a irq_domain for the MIPS IRQ controller from a devicetree file. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: John Crispin <blogic@openwrt.org> Acked-by: David Daney <david.daney@cavium.com> Patchwork: http://patchwork.linux-mips.org/patch/4902/
| | * | MIPS: Add new GIC clocksource.Steven J. Hill2013-02-172-0/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add new clocksource that uses the counter present on the MIPS Global Interrupt Controller. Signed-off-by: Steven J. Hill <sjhill@mips.com> Patchwork: http://patchwork.linux-mips.org/patch/4681/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | MIPS: dsp: Add assembler support for DSP ASEs.Steven J. Hill2013-02-171-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newer toolchains support the DSP and DSP Rev2 instructions. This patch performs a check for that support and adds compiler and assembler flags for only the files that need use those instructions. Signed-off-by: Steven J. Hill <sjhill@mips.com> Acked-by: Florian Fainelli <florian@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4752/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | MIPS: Add support for the M14KEc core.Steven J. Hill2013-02-172-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Steven J. Hill <sjhill@mips.com> Patchwork: http://patchwork.linux-mips.org/patch/4682/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | MIPS: show correct cpu name for 24KEcJohn Crispin2013-02-171-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | Make sure 24KEc is properly identified inside /proc/cpuinfo Signed-off-by: John Crispin <blogic@openwrt.org>
| * | | MIPS: Add printing of ISA version in cpuinfo.Steven J. Hill2013-02-152-30/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Display the MIPS ISA version release in the /proc/cpuinfo file. [ralf@linux-mips.org: Add support for MIPS I ... IV legacy architecture revisions. Also differenciate between MIPS32 and MIPS64 versions instead of lumping them together as just r1 and r2. Note to application programmers: this indicates the CPU's ISA level It does not imply the current execution environment does support it. For example an O32 application seeing "mips64r2" would still be restricted by by the execution environment to 32-bit - but the kernel could run mips64r2 code. The same for a 32-bit kernel running on a 64-bit processor. This field doesn't include ASEs or optional architecture modules nor other detailed flags such as the availability of an FPU.] Signed-off-by: Steven J. Hill <sjhill@mips.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/4714/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | MIPS: Loongson2: Use clk API instead of direct dereferencesJulia Lawall2013-02-151-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A struct clk value is intended to be an abstract pointer, so it should be manipulated using the various API functions. clk_put is additionally added on the failure paths. The semantic match that finds the first problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e,e1; identifier i; @@ *e = clk_get(...) ... when != e = e1 when any *e->i // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Cc: kernel-janitors@vger.kernel.org Cc: linux-mips@linux-mips.org, Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/4751/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | MIPS: Whitespace cleanup.Ralf Baechle2013-02-0168-450/+450
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | MIPS: Whitespace cleanups and reformatting.Steven J. Hill2013-02-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Steven J. Hill <sjhill@mips.com> Cc: linux-mips@linux-mips.org Cc: Steven J. Hill <sjhill@mips.com> Cc: Kevin Cernekee <cernekee@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/4781/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | MIPS: sysmips: Rewrite to use SYSCALL_DEFINE3().Ralf Baechle2013-02-011-12/+5
| | | | | | | | | | | | | | | | | | | | | | | | Thanks to current_pt_regs() there is no need to use the dark MIPS magic. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | MIPS: sysmips: Use unreachable().Ralf Baechle2013-02-011-1/+1
| |/ / | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | hlist: drop the node parameter from iteratorsSasha Levin2013-02-271-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2013-02-262-10/+5
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs pile (part one) from Al Viro: "Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent locking violations, etc. The most visible changes here are death of FS_REVAL_DOT (replaced with "has ->d_weak_revalidate()") and a new helper getting from struct file to inode. Some bits of preparation to xattr method interface changes. Misc patches by various people sent this cycle *and* ocfs2 fixes from several cycles ago that should've been upstream right then. PS: the next vfs pile will be xattr stuff." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits) saner proc_get_inode() calling conventions proc: avoid extra pde_put() in proc_fill_super() fs: change return values from -EACCES to -EPERM fs/exec.c: make bprm_mm_init() static ocfs2/dlm: use GFP_ATOMIC inside a spin_lock ocfs2: fix possible use-after-free with AIO ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero target: writev() on single-element vector is pointless export kernel_write(), convert open-coded instances fs: encode_fh: return FILEID_INVALID if invalid fid_type kill f_vfsmnt vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op nfsd: handle vfs_getattr errors in acl protocol switch vfs_getattr() to struct path default SET_PERSONALITY() in linux/elf.h ceph: prepopulate inodes only when request is aborted d_hash_and_lookup(): export, switch open-coded instances 9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate() 9p: split dropping the acls from v9fs_set_create_acl() ...
| * | | new helper: file_inode(file)Al Viro2013-02-222-10/+5
| | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | Merge tag 'modules-next-for-linus' of ↵Linus Torvalds2013-02-251-1/+1
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module update from Rusty Russell: "The sweeping change is to make add_taint() explicitly indicate whether to disable lockdep, but it's a mechanical change." * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: MODSIGN: Add option to not sign modules during modules_install MODSIGN: Add -s <signature> option to sign-file MODSIGN: Specify the hash algorithm on sign-file command line MODSIGN: Simplify Makefile with a Kconfig helper module: clean up load_module a little more. modpost: Ignore ARC specific non-alloc sections module: constify within_module_* taint: add explicit flag to show whether lock dep is still OK. module: printk message when module signature fail taints kernel.
| * | | taint: add explicit flag to show whether lock dep is still OK.Rusty Russell2013-01-211-1/+1
| |/ / | | | | | | | | | | | | | | | | | | Fix up all callers as they were before, with make one change: an unsigned module taints the kernel, but doesn't turn off lockdep. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2013-02-2310-460/+54
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull signal handling cleanups from Al Viro: "This is the first pile; another one will come a bit later and will contain SYSCALL_DEFINE-related patches. - a bunch of signal-related syscalls (both native and compat) unified. - a bunch of compat syscalls switched to COMPAT_SYSCALL_DEFINE (fixing several potential problems with missing argument validation, while we are at it) - a lot of now-pointless wrappers killed - a couple of architectures (cris and hexagon) forgot to save altstack settings into sigframe, even though they used the (uninitialized) values in sigreturn; fixed. - microblaze fixes for delivery of multiple signals arriving at once - saner set of helpers for signal delivery introduced, several architectures switched to using those." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (143 commits) x86: convert to ksignal sparc: convert to ksignal arm: switch to struct ksignal * passing alpha: pass k_sigaction and siginfo_t using ksignal pointer burying unused conditionals make do_sigaltstack() static arm64: switch to generic old sigaction() (compat-only) arm64: switch to generic compat rt_sigaction() arm64: switch compat to generic old sigsuspend arm64: switch to generic compat rt_sigqueueinfo() arm64: switch to generic compat rt_sigpending() arm64: switch to generic compat rt_sigprocmask() arm64: switch to generic sigaltstack sparc: switch to generic old sigsuspend sparc: COMPAT_SYSCALL_DEFINE does all sign-extension as well as SYSCALL_DEFINE sparc: kill sign-extending wrappers for native syscalls kill sparc32_open() sparc: switch to use of generic old sigaction sparc: switch sys_compat_rt_sigaction() to COMPAT_SYSCALL_DEFINE mips: switch to generic sys_fork() and sys_clone() ...
| * | mips: switch to generic sys_fork() and sys_clone()Al Viro2013-02-036-61/+8
| | | | | | | | | | | | | | | | | | | | | we still need the wrappers to store callee-saved registers in pt_regs, but once that done we can jump to kernel/fork.c variants. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: take the "zero newsp means inherit the parent's one" to copy_thread()Al Viro2013-02-033-6/+3
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: no magic arguments for sysm_pipe()Al Viro2013-02-031-12/+6
| | | | | | | | | | | | | | | | | | current_pt_regs() works just fine Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: don't bother with compat_sys_futex() wrappersAl Viro2013-02-033-9/+2
| | | | | | | | | | | | | | | | | | ... it's COMPAT_SYSCALL_DEFINE now Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: switch to generic compat rt_sigaction()Al Viro2013-02-033-54/+4
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: switch to generic compat sched_rr_get_interval()Al Viro2013-02-033-18/+2
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: sigsuspend() is essentially the same as rt_sigsuspend() hereAl Viro2013-02-032-16/+4
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: switch to generic compat rt_sigqueueinfo()Al Viro2013-02-033-18/+2
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: switch to generic compat rt_sigpending()Al Viro2013-02-033-19/+2
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: switch to generic compat rt_sigprocmask()Al Viro2013-02-033-24/+2
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | switch mips to generic rt_sigsuspend(), make it unconditionalAl Viro2013-02-035-53/+2
| | | | | | | | | | | | | | | | | | | | | | | | mips was the last architecture not using the generic variant. Both native and compat variants switched to generic, which is made unconditional now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: switch to compat_sys_waitid()Al Viro2013-02-032-27/+1
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | mips: switch to generic sigaltstackAl Viro2013-02-035-127/+11
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | Merge commit '12890d0f61fc' into arch-mipsAl Viro2013-02-031-13/+6
| |\ \
| | * | MIPS: sysmips: Rewrite to use SYSCALL_DEFINE3().Ralf Baechle2012-12-271-12/+5
| | | | | | | | | | | | | | | | | | | | | | | | Thanks to current_pt_regs() there is no need to use the dark MIPS magic. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * | MIPS: sysmips: Use unreachable().Ralf Baechle2012-12-271-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | mips: use sane prototype for sys_rt_sigsuspend()Al Viro2013-02-031-5/+1
| | |/ | |/| | | | | | | | | | | | | | | | we want to do that before branchpoint for arch-* to be able to consolidate sys_rt_sigsuspend() declarations. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | MIPS: Function tracer: Fix broken function tracingAl Cooper2013-01-312-4/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Function tracing is currently broken for all 32 bit MIPS platforms. When tracing is enabled, the kernel immediately hangs on boot. This is a result of commit b732d439cb43336cd6d7e804ecb2c81193ef63b0 that changes the kernel/trace/Kconfig file so that is no longer forces FRAME_POINTER when FUNCTION_TRACING is enabled. MIPS frame pointers are generally considered to be useless because they cannot be used to unwind the stack. Unfortunately the MIPS function tracing code has bugs that are masked by the use of frame pointers. This commit fixes the bugs so that MIPS frame pointers don't need to be enabled. The bugs are a result of the odd calling sequence used to call the trace routine. This calling sequence is inserted into every traceable function when the tracing CONFIG option is enabled. This sequence is generated for 32bit MIPS platforms by the compiler via the "-pg" flag. Part of the sequence is "addiu sp,sp,-8" in the delay slot after every call to the trace routine "_mcount" (some legacy thing where 2 arguments used to be pushed on the stack). The _mcount routine is expected to adjust the sp by +8 before returning. So when not disabled, the original jalr and addiu will be there, so _mcount has to adjust sp. The problem is that when tracing is disabled for a function, the "jalr _mcount" instruction is replaced with a nop, but the "addiu sp,sp,-8" is still executed and the stack pointer is left trashed. When frame pointers are enabled the problem is masked because any access to the stack is done through the frame pointer and the stack pointer is restored from the frame pointer when the function returns. This patch writes two nops starting at the address of the "jalr _mcount" instruction whenever tracing is disabled. This means that the "addiu sp,sp.-8" will be converted to a nop along with the "jalr". When disabled, there will be two nops. This is SMP safe because the first time this happens is during ftrace_init() which is before any other processor has been started. Subsequent calls to enable/disable tracing when other CPUs ARE running will still be safe because the enable will only change the first nop to a "jalr" and the disable, while writing 2 nops, will only be changing the "jalr". This patch also stops using stop_machine() to call the tracer enable/disable routines and calls them directly because the routines are SMP safe. When the kernel first boots we have to be able to handle the gcc generated jalr, addui sequence until ftrace_init gets a chance to run and change the sequence. At this point mcount just adjusts the stack and returns. When ftrace_init runs, we convert the jalr/addui to nops. Then whenever tracing is enabled we convert the first nop to a "jalr mcount+8". The mcount+8 entry point skips the stack adjust. [ralf@linux-mips.org: Folded in Steven Rostedt's build fix.] Signed-off-by: Al Cooper <alcooperx@gmail.com> Cc: rostedt@goodmis.org Cc: ddaney.cavm@gmail.com Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/4806/ Patchwork: https://patchwork.linux-mips.org/patch/4841/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | MIPS: vpe.c: Fix null pointer dereference in print arguments.Cong Ding2013-01-161-1/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | In the printk, the variable t euqals to NULL, so there is no t->index. Use v->tc->index instead. [ralf@linux-mips.org: Use opportunity of changing this line anyway to make this line whitespacely correct.] Signed-off-by: Cong Ding <dinggnu@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/4792/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2013-01-0713-48/+12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS fixes from Ralf Baechle: "Various fixes across the tree. The modpost error due to virt_addr_valid() not being usable from modules required a number of preparatory cleanups so a clean fix was possible." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: 64-bit: Fix build if !CONFIG_MODULES MIPS: Wire up finit_module syscall. MIPS: Fix modpost error in modules attepting to use virt_addr_valid(). MIPS: page.h: Remove now unnecessary #ifndef __ASSEMBLY__ wrapper. MIPS: Switch remaining assembler PAGE_SIZE users to <asm/asm-offsets.h>. MIPS: Include PAGE_S{IZE,HIFT} in <asm/offset.h>. MIPS: Don't include <asm/page.h> unnecessarily. MIPS: Fix comment. Revert "MIPS: Optimise TLB handlers for MIPS32/64 R2 cores." MIPS: perf: Fix build failure in XLP perf support. MIPS: Alchemy: Make 32kHz and r4k timer coexist peacefully
| * | MIPS: Wire up finit_module syscall.Ralf Baechle2012-12-284-0/+4
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | MIPS: Switch remaining assembler PAGE_SIZE users to <asm/asm-offsets.h>.Ralf Baechle2012-12-283-6/+5
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | MIPS: Include PAGE_S{IZE,HIFT} in <asm/offset.h>.Ralf Baechle2012-12-281-0/+3
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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