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2013-09-05gfs2: use check_submounts_and_drop()Miklos Szeredi
Do have_submounts(), shrink_dcache_parent() and d_drop() atomically. check_submounts_and_drop() can deal with negative dentries and non-directories as well. Non-directories can also be mounted on. And just like directories we don't want these to disappear with invalidation. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-05afs: use check_submounts_and_drop()Miklos Szeredi
Do have_submounts(), shrink_dcache_parent() and d_drop() atomically. check_submounts_and_drop() can deal with negative dentries as well. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-05vfs: check unlinked ancestors before mountMiklos Szeredi
We check submounts before doing d_drop() on a non-empty directory dentry in NFS (have_submounts()), but we do not exclude a racing mount. Nor do we prevent mounts to be added to the disconnected subtree using relative paths after the d_drop(). This patch fixes these issues by checking for unlinked (unhashed, non-root) ancestors before proceeding with the mount. This is done with rename seqlock taken for write and with ->d_lock grabbed on each ancestor in turn, including our dentry itself. This ensures that the only one of check_submounts_and_drop() or has_unlinked_ancestor() can succeed. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-05vfs: check submounts and drop atomicallyMiklos Szeredi
We check submounts before doing d_drop() on a non-empty directory dentry in NFS (have_submounts()), but we do not exclude a racing mount. Process A: have_submounts() -> returns false Process B: mount() -> success Process A: d_drop() This patch prepares the ground for the fix by doing the following operations all under the same rename lock: have_submounts() shrink_dcache_parent() d_drop() This is actually an optimization since have_submounts() and shrink_dcache_parent() both traverse the same dentry tree separately. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: David Howells <dhowells@redhat.com> CC: Steven Whitehouse <swhiteho@redhat.com> CC: Trond Myklebust <Trond.Myklebust@netapp.com> CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-05vfs: add d_walk()Miklos Szeredi
This one replaces three instances open coded tree walking (have_submounts, select_parent, d_genocide) with a common helper. In addition to slightly reducing the kernel size, this simplifies the callers and makes them less bug prone. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-05vfs: restructure d_genocide()Miklos Szeredi
It shouldn't matter when we decrement the refcount during the walk as long as we do it exactly once. Restructure d_genocide() to do the killing on entering the dentry instead of when leaving it. This helps creating a common helper for tree walking. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-05openvswitch: Fix alignment of struct sw_flow_key.Jesse Gross
sw_flow_key alignment was declared as " __aligned(__alignof__(long))". However, this breaks on the m68k architecture where long is 32 bit in size but 16 bit aligned by default. This aligns to the size of a long to ensure that we can always do comparsions in full long-sized chunks. It also adds an additional build check to catch any reduction in alignment. CC: Andy Zhou <azhou@nicira.com> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull cputime fix from Ingo Molnar: "This fixes a longer-standing cputime accounting bug that Stanislaw Gruszka finally managed to track down" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/cputime: Do not scale when utime == 0
2013-09-05Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Fix for the annoying paravirt.o build warning under allmodconfig, and a MAINTAINERS file update" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, doc: Add an entry in MAINTAINERS for arch/x86/kernel/cpu/vmware.c x86, paravirt: Remove duplicate definition for DEF_NATIVE
2013-09-05ide: sgiioc4: Staticize ioc4_ide_attach_one()Jingoo Han
ioc4_ide_attach_one() is used only in this file. Fix the following sparse warnings: drivers/ide/sgiioc4.c:603:5: warning: symbol 'ioc4_ide_attach_one' was not declared. Should it be static? Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05ide: palm_bk3710: add missing __iomem annotationJingoo Han
Added missing __iomem annotation in order to fix the following sparse warnings: drivers/ide/palm_bk3710.c:194:31: warning: incorrect type in initializer (different address spaces) drivers/ide/palm_bk3710.c:194:31: expected void [noderef] <asn:2>*base drivers/ide/palm_bk3710.c:194:31: got void *<noident> drivers/ide/palm_bk3710.c:212:31: warning: incorrect type in initializer (different address spaces) drivers/ide/palm_bk3710.c:212:31: expected void [noderef] <asn:2>*base drivers/ide/palm_bk3710.c:212:31: got void *<noident> Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05ide: use dev_get_platdata()Jingoo Han
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05ide-disk_proc: use macro to replace magic numberXinghai Yu
Signed-off-by: Xinghai Yu <yuxinghai@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05ide: replace strict_strtol() with kstrtol()Jingoo Han
The usage of strict_strtol() is not preferred, because strict_strtol() is obsolete. Thus, kstrtol() should be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05perf session: Separate progress bar update when processing eventsJiri Olsa
Currently when processing events in the __perf_session__process_events function we update a progress bar based on the file_size. During the same processing we update the progress bar from within flush_sample_queue which is based on number of samples count. Having 2 different based updates is causing the progress bar to jump heavily back and forth giving not much usefull info. Fixing this by keeping only __perf_session__process_events based progress bar update. And turning on flush_sample_queue progress bar update only for final flushing. This reduces the number of time the progress bar update function is called and it significantly reduces the loading time for TUI, where the progress bar update takes quite a lot of time. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20130905091449.GC1100@krava.brq.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-05perf trace: Check if MAP_32BIT is definedKyle McMartin
MAP_32BIT is defined only on x86... this means perf fails to build on all other platforms. Signed-off-by: Kyle McMartin <kyle@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20130905142947.GA25882@merlin.infradead.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-05perf hists: Fix formatting of long symbol namesArnaldo Carvalho de Melo
We had a hardcoded buffer for formatting histogram entries, truncating long symbol names (C++ anyone?). Fix it by using hists__sort_list_width() before formatting the first histogram entry to calculate the max lenght needed by traversing the overheads and columns lists (sort order). Reported-by: Stephane Eranian <eranian@google.com> Tested-by: Stephane Eranian <eranian@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vdfkkyfdp8rboh7j9344o3ss@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-05perf evlist: Fix parsing with no sample_id_all bit setAdrian Hunter
The perf_evlist__event2evsel() is changed to handle non-sample events (such as mmap events) that have no id sample appended i.e. when sample_id_all is not set. Note that such events have a fixed format, so that the selected event (evsel) they are associated with is immaterial. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: David Ahern <dsahern@gmail.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1378325897-3840-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-05perf tools: Add test for parsing with no sample_id_all bitAdrian Hunter
Add a test for parsing a non-sample event when there is more than one selected event but no sample_id_all bit set. The test fails because of a bug in the evlist logic. That is fixed in a separate patch. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1378325897-3840-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-05perf trace: Check control+C more oftenArnaldo Carvalho de Melo
We were checking for it only after processing all events in the buffer, delaying processing the termination request for long periods. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-9jdbu937curvb35cfzbyss4g@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-09-05sparc64: Export flush_ptrace_access() (needed by lustre)Geert Uytterhoeven
ERROR: "flush_ptrace_access" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined! Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05sparc: fix PCI device proc file mmap(2)Alexey Dobriyan
Commit 786d7e1612f0b0adb6046f19b906609e4fe8b1ba "Fix rmmod/read/write races in /proc entries" must have broken mmapping of PCI device proc files on Sparc. Notice how it adds wrapper around ->mmap but doesn't do it around ->get_unmapped_area. Add wrapper around ->get_unmapped_area. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05sparc64: Remove RWSEM export leftoversKirill Tkhai
The functions __down_read __down_read_trylock __down_write __down_write_trylock __up_read __up_write __downgrade_write are implemented inline, so remove corresponding EXPORT_SYMBOLs (They lead to compile errors on RT kernel). Signed-off-by: Kirill Tkhai <tkhai@yandex.ru> CC: David Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c net/bridge/br_multicast.c net/ipv6/sit.c The conflicts were minor: 1) sit.c changes overlap with change to ip_tunnel_xmit() signature. 2) br_multicast.c had an overlap between computing max_delay using msecs_to_jiffies and turning MLDV2_MRC() into an inline function with a name using lowercase instead of uppercase letters. 3) stmmac had two overlapping changes, one which conditionally allocated and hooked up a dma_cfg based upon the presence of the pbl OF property, and another one handling store-and-forward DMA made. The latter of which should not go into the new of_find_property() basic block. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05Merge branch 'v4l_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: "This series contains: - Exynos s5p-mfc driver got support for VP8 encoder - Some SoC drivers gained support for asynchronous registration (needed for DT) - The RC subsystem gained support for RC activity LED; - New drivers added: a video decoder(adv7842), a video encoder (adv7511), a new GSPCA driver (stk1135) and support for Renesas R-Car (vsp1) - the first SDR kernel driver: mirics msi3101. Due to some troubles with the driver, and because the API is still under discussion, it will be merged at staging for 3.12. Need to rework on it - usual new boards additions, fixes, cleanups and driver improvements" * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (242 commits) [media] cx88: Fix regression: CX88_AUDIO_WM8775 can't be 0 [media] exynos4-is: Fix entity unregistration on error path [media] exynos-gsc: Register v4l2 device [media] exynos4-is: Fix fimc-lite bayer formats [media] em28xx: fix assignment of the eeprom data [media] hdpvr: fix iteration over uninitialized lists in hdpvr_probe() [media] usbtv: Throw corrupted frames away [media] usbtv: Fix deinterlacing [media] v4l2: added missing mutex.h include to v4l2-ctrls.h [media] DocBook: upgrade media_api DocBook version to 4.2 [media] ml86v7667: fix compile warning: 'ret' set but not used [media] s5p-g2d: Fix registration failure [media] media: coda: Fix DT driver data pointer for i.MX27 [media] s5p-mfc: Fix input/output format reporting [media] v4l: vsp1: Fix mutex double lock at streamon time [media] v4l: vsp1: Add support for RT clock [media] v4l: vsp1: Initialize media device bus_info field [media] davinci: vpif_capture: fix error return code in vpif_probe() [media] davinci: vpif_display: fix error return code in vpif_probe() [media] MAINTAINERS: add entries for adv7511 and adv7842 ...
2013-09-05Merge branch '3.11-fixes' into mips-for-linux-nextRalf Baechle
2013-09-05MIPS: kexec: Fix random crashes while loading crashkernelPrem Mallappa
Fixed compilation errors in case of non-KEXEC kernel Rearranging code so that crashk_res gets updated. - crashk_res is updated after mips_parse_crashkernel(), after resource_init(), which is after arch_mem_init(). - The reserved memory is actually treated as Usable memory, Unless we load the crash kernel, everything works. Signed-off-by: Prem Mallappa <pmallappa@caviumnetworks.com> Cc: linux-mips <linux-mips@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/5805/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-05MIPS: kdump: Skip walking indirection page for crashkernelsPrem Mallappa
KDUMP: skip indirection page, as crashkernel has already copied to destination [ralf@linux-mips.org: cosmetic changes.] Signed-off-by: Prem Mallappa <pmallappa@caviumnetworks.com> Cc: linux-mips <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/5786/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-05MIPS: DECstation HRT calibration bug fixesMaciej W. Rozycki
This change corrects DECstation HRT calibration, by removing the following bugs: 1. Calibration period selection -- HZ / 10 has been chosen, however on DECstation computers, HZ never divides by 10, as the choice for HZ is among 128, 256 and 1024. The choice therefore results in a systematic calibration error, e.g. 6.25% for the usual choice of 128 for HZ: 128 / 10 * 10 = 120 (128 - 120) / 128 -> 6.25% The change therefore makes calibration use HZ / 8 that is always accurate for the HZ values available, getting rid of the systematic error. 2. Calibration starting point synchronisation -- the duration of a number of intervals between DS1287A periodic interrupt assertions is measured, however code does not ensure at the beginning that the interrupt has not been previously asserted. This results in a variable error of e.g. up to another 6.25% for the period of HZ / 8 (8.(3)% with the original HZ / 10 period) and the usual choice of 128 for HZ: 1 / 16 -> 6.25% 1 / 12 -> 8.(3)% The change therefore adds an initial call to ds1287_timer_state that clears any previous periodic interrupt pending. The same issue applies to both I/O ASIC counter and R4k CP0 timer calibration on DECstation systems as similar code is used in both cases and both pieces of code are covered by this fix. On an R3400 test system used this fix results in a change of the I/O ASIC clock frequency reported from values like: I/O ASIC clock frequency 23185830Hz to: I/O ASIC clock frequency 24999288Hz removing the miscalculation by 6.25% from the systematic error and (for the individual sample provided) a further 1.00% from the variable error, accordingly. The nominal I/O ASIC clock frequency is 25MHz on this system. Here's another result, with the fix applied, from a system that has both HRTs available (using an R4400 at 60MHz nominal): MIPS counter frequency 59999328Hz I/O ASIC clock frequency 24999432Hz Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5807/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-05netfilter: Fix build errors with xt_socket.cDavid S. Miller
As reported by Randy Dunlap: ==================== when CONFIG_IPV6=m and CONFIG_NETFILTER_XT_MATCH_SOCKET=y: net/built-in.o: In function `socket_mt6_v1_v2': xt_socket.c:(.text+0x51b55): undefined reference to `udp6_lib_lookup' net/built-in.o: In function `socket_mt_init': xt_socket.c:(.init.text+0x1ef8): undefined reference to `nf_defrag_ipv6_enable' ==================== Like several other modules under net/netfilter/ we have to have a dependency "IPV6 disabled or set compatibly with this module" clause. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05tcp: Add missing braces to do_tcp_setsockoptDave Jones
Signed-off-by: Dave Jones <davej@fedoraproject.org> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05caif: Add missing braces to multiline if in cfctrl_linkup_requestDave Jones
The indentation here implies this was meant to be a multi-line if. Introduced several years back in commit c85c2951d4da1236e32f1858db418221e624aba5 ("caif: Handle dev_queue_xmit errors.") Signed-off-by: Dave Jones <davej@fedoraproject.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05bnx2x: Add missing braces in bnx2x:bnx2x_link_initializeDave Jones
The indentation here implies that the intent was for this to be a multiline if. Introduced a few years ago in commit ec146a6f019923819f5ca381980248b6d154ca1a ("bnx2x: Modify XGXS functions") Signed-off-by: Dave Jones <davej@fedoraproject.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05vxlan: Fix kernel panic on device delete.Pravin B Shelar
On vxlan device create if socket create fails vxlan device is not added to hash table. Therefore we need to check if device is in hashtable before we delete it from hlist. Following patch avoid the crash. net-next already has this fix. ---8<--- BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffffa05f9ca7>] vxlan_dellink+0x77/0xf0 [vxlan] PGD 42b2d9067 PUD 42e04c067 PMD 0 Oops: 0002 [#1] SMP Modules linked in: vxlan(-) Hardware name: Dell Inc. PowerEdge R620/0KCKR5, BIOS 1.4.8 10/25/2012 task: ffff88042ecf8760 ti: ffff88042f106000 task.ti: ffff88042f106000 RIP: 0010:[<ffffffffa05f9ca7>] [<ffffffffa05f9ca7>] vxlan_dellink+0x77/0xf0 [vxlan] RSP: 0018:ffff88042f107e28 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88082af08000 RCX: ffff88083fd80000 RDX: 0000000000000000 RSI: ffff88042f107e58 RDI: ffff88042e12f810 RBP: ffff88042f107e48 R08: ffffffff8166eca0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88082af087c0 R13: ffff88042e12f000 R14: ffff88042f107e58 R15: ffff88042f107e58 FS: 00007f4ed2de7700(0000) GS:ffff88043fc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000042e076000 CR4: 00000000000407e0 Stack: ffff88082af08000 ffffffff81654848 ffffffffa05fb4e0 ffffffff81654780 ffff88042f107e98 ffffffff813b9c7a ffff88042f107e58 ffff88042f107e58 ffff88042f107e88 ffffffffa05fb4e0 ffffffffa05fb780 ffff88042f107f18 Call Trace: [<ffffffff813b9c7a>] __rtnl_link_unregister+0xca/0xd0 [<ffffffff813bb0e9>] rtnl_link_unregister+0x19/0x30 [<ffffffffa05faa4c>] vxlan_cleanup_module+0x10/0x2f [vxlan] [<ffffffff81099fef>] SyS_delete_module+0x1cf/0x2c0 [<ffffffff8146c069>] ? do_page_fault+0x9/0x10 [<ffffffff8146f012>] system_call_fastpath+0x16/0x1b Code: 4d 85 ed 0f 84 95 00 00 00 4c 8d a7 c0 07 00 00 49 8d bd 10 08 00 00 e8 28 e8 e6 e0 48 8b 83 c0 07 00 00 49 8b 54 24 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 49 b8 00 02 20 00 00 00 ad de 4d 89 RIP [<ffffffffa05f9ca7>] vxlan_dellink+0x77/0xf0 [vxlan] RSP <ffff88042f107e28> CR2: 0000000000000000 Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctlsThomas Petazzoni
This commit implements the ->ndo_do_ioctl() operation so that the PHY-related ioctl() calls can work from userspace, which allows applications like mii-tool or mii-diag to do their job. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05net: mvneta: properly disable HW PHY polling and ensure adjust_link() worksThomas Petazzoni
This commit fixes a long-standing bug that has been reported by many users: on some Armada 370 platforms, only the network interface that has been used in U-Boot to tftp the kernel works properly in Linux. The other network interfaces can see a 'link up', but are unable to transmit data. The reports were generally made on the Armada 370-based Mirabox, but have also been given on the Armada 370-RD board. The network MAC in the Armada 370/XP (supported by the mvneta driver in Linux) has a functionality that allows it to continuously poll the PHY and directly update the MAC configuration accordingly (speed, duplex, etc.). The very first versions of the driver submitted for review were using this hardware mechanism, but due to this, the driver was not integrated with the kernel phylib. Following reviews, the driver was changed to use the phylib, and therefore a software based polling. In software based polling, Linux regularly talks to the PHY over the MDIO bus, and sees if the link status has changed. If it's the case then the adjust_link() callback of the driver is called to update the MAC configuration accordingly. However, it turns out that the adjust_link() callback was not configuring the hardware in a completely correct way: while it was setting the speed and duplex bits correctly, it wasn't telling the hardware to actually take into account those bits rather than what the hardware-based PHY polling mechanism has concluded. So, in fact the adjust_link() callback was basically a no-op. However, the network happened to be working because on the network interfaces used by U-Boot for tftp on Armada 370 platforms because the hardware PHY polling was enabled by the bootloader, and left enabled by Linux. However, the second network interface not used for tftp (or both network interfaces if the kernel is loaded from USB, NAND or SD card) didn't had the hardware PHY polling enabled. This patch fixes this situation by: (1) Making sure that the hardware PHY polling is disabled by clearing the MVNETA_PHY_POLLING_ENABLE bit in the MVNETA_UNIT_CONTROL register in the driver ->probe() function. (2) Making sure that the duplex and speed selections made by the adjust_link() callback are taken into account by clearing the MVNETA_GMAC_AN_SPEED_EN and MVNETA_GMAC_AN_DUPLEX_EN bits in the MVNETA_GMAC_AUTONEG_CONFIG register. This patch has been tested on Armada 370 Mirabox, and now both network interfaces are usable after boot. [ Problem introduced by commit c5aff18 ("net: mvneta: driver for Marvell Armada 370/XP network unit") ] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Willy Tarreau <w@1wt.eu> Cc: Jochen De Smet <jochen.armkernel@leahnim.org> Cc: Peter Sanford <psanford@nearbuy.io> Cc: Ethan Tuttle <ethan@ethantuttle.com> Cc: Chény Yves-Gael <yves@cheny.fr> Cc: Ryan Press <ryan@presslab.us> Cc: Simon Guinot <simon.guinot@sequanux.org> Cc: vdonnefort@lacie.com Cc: stable@vger.kernel.org Acked-by: Jason Cooper <jason@lakedaemon.net> Tested-by: Vincent Donnefort <vdonnefort@gmail.com> Tested-by: Yves-Gael Cheny <yves@cheny.fr> Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05icplus: Use netif_running to determine device stateJon Mason
Remove the __LINK_STATE_START check to verify the device is running, in favor of netif_running(). netif_running() performs the same check of __LINK_STATE_START, so the code should behave the same. Signed-off-by: Jon Mason <jdmason@kudzu.us> Cc: Francois Romieu <romieu@fr.zoreil.com> Cc: Sorbica Shieh <sorbica@icplus.com.tw> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05ethernet/arc/arc_emac: Fix huge delays in large file copiesVineet Gupta
copying large files to a NFS mounted host was taking absurdly large time. Turns out that TX BD reclaim had a sublte bug. Loop starts off from @txbd_dirty cursor and stops when it hits a BD still in use by controller. However when it stops it needs to keep the cursor at that very BD to resume scanning in next iteration. However it was erroneously incrementing the cursor, causing the next scan(s) to fail too, unless the BD chain was completely drained out. [ARCLinux]$ ls -l -sh /disk/log.txt 17976 -rw-r--r-- 1 root root 17.5M Sep /disk/log.txt ========== Before ===================== [ARCLinux]$ time cp /disk/log.txt /mnt/. real 31m 7.95s user 0m 0.00s sys 0m 0.10s ========== After ===================== [ARCLinux]$ time cp /disk/log.txt /mnt/. real 0m 24.33s user 0m 0.00s sys 0m 0.19s Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> (commit_signer:3/4=75%) Cc: "David S. Miller" <davem@davemloft.net> (commit_signer:3/4=75%) Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: arc-linux-dev@synopsys.com Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05ntb: clean up unnecessary MSI/MSI-X capability findYijing Wang
PCI core will initialize device MSI/MSI-X capability in pci_msi_init_pci_dev(). So device driver should use pci_dev->msi_cap/msix_cap to determine whether the device support MSI/MSI-X instead of using pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX). Access to PCIe device config space again will consume more time. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-05MAINTAINERS: Add Website and Git Tree for NTBJon Mason
Add website and git tree for the NTB entry in MAINTAINERS Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-05NTB: Update VersionJon Mason
Update NTB version to 1.0 Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-05NTB: Comment FixJon Mason
Add "data" ntb_register_db_callback parameter description comment and correct poor spelling. Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-05NTB: Remove unused variableJon Mason
Remove unused pci_dev variable from ntb_transport_free() Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-05NTB: Remove References of non-B2B BWD HWJon Mason
NTB-RP is not a supported configuration on BWD hardware. Remove the code attempting to set it up. Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-05NTB: NTB-RP supportJon Mason
Add support for Non-Transparent Bridge connected to a PCI-E Root Port on the remote system (also known as NTB-RP mode). This allows for a NTB enabled system to be connected to a non-NTB enabled system/slot. Modifications to the registers and BARs/MWs on the Secondary side by the remote system are reflected into registers on the Primary side for the local system. Similarly, modifications of registers and BARs/MWs on Primary side by the local system are reflected into registers on the Secondary side for the Remote System. This allows communication between the 2 sides via these registers and BARs/MWs. Note: there is not a fix for the Xeon Errata (that was already worked around in NTB-B2B mode) for NTB-RP mode. Due to this limitation, NTB-RP will not work on the Secondary side with the Xeon Errata workaround enabled. To get around this, disable the workaround via the xeon_errata_workaround=0 modparm. However, this can cause the hang described in the errata. Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-05NTB: Rename Variables for NTB-RPJon Mason
Many variable names in the NTB driver refer to the primary or secondary side. However, these variables will be used to access the reverse case when in NTB-RP mode. Make these names more generic in anticipation of NTB-RP support. Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-05NTB: Use DMA Engine to Transmit and ReceiveJon Mason
Allocate and use a DMA engine channel to transmit and receive data over NTB. If none is allocated, fall back to using the CPU to transfer data. Signed-off-by: Jon Mason <jon.mason@intel.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com>
2013-09-05MIPS: Export copy_from_user_page() (needed by lustre)Geert Uytterhoeven
ERROR: "copy_from_user_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined! Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/5808/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-05Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm tree changes from Dave Airlie: "This is the main drm pull request, I have some overlap with sound and arm-soc, the sound patch is acked and may conflict based on -next reports but should be a trivial fixup, which I'll leave to you! Highlights: - new drivers: MSM driver from Rob Clark - non-drm: switcheroo and hdmi audio driver support for secondary GPU poweroff, so drivers can use runtime PM to poweroff the GPUs. This can save 5 or 6W on some optimus laptops. - drm core: combined GEM and TTM VMA manager per-filp mmap permission tracking initial rendernode support (via a runtime enable for now, until we get api stable), remove old proc support, lots of cleanups of legacy code hdmi vendor infoframes and 4k modes lots of gem/prime locking and races fixes async pageflip scaffolding drm bridge objects - i915: Haswell PC8+ support and eLLC support, HDMI 4K support, initial per-process VMA pieces, watermark reworks, convert to generic hdmi infoframes, encoder reworking, fastboot support, - radeon: CIK PM support, remove 3d blit code in favour of DMA engines, Berlin GPU support, HDMI audio fixes - nouveau: secondary GPU power down support for optimus laptops, lots of fixes, use MSI, VP3 engine support - exynos: runtime pm support for g2d, DT support, remove non-DT, - tda998x i2c driver: lots of fixes for sync issues - gma500: lots of cleanups - rcar: add LVDS support, fbdev emulation, - tegra: just minor fixes" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (684 commits) drm/exynos: Fix build error with exynos_drm_connector.c drm/exynos: Remove non-DT support in exynos_drm_fimd drm/exynos: Remove non-DT support in exynos_hdmi drm/exynos: Remove non-DT support in exynos_drm_g2d drm/exynos: Remove non-DT support in exynos_hdmiphy drm/exynos: Remove non-DT support in exynos_ddc drm/exynos: Make Exynos DRM drivers depend on OF drm/exynos: Consider fallback option to allocation fail drm/exynos: fimd: move platform data parsing to separate function drm/exynos: fimd: get signal polarities from device tree drm/exynos: fimd: replace struct fb_videomode with videomode drm/exynos: check a pixel format to a particular window layer drm/exynos: fix fimd pixel format setting drm/exynos: Add NULL pointer check drm/exynos: Remove redundant error messages drm/exynos: Add missing of.h header include drm/exynos: Remove redundant NULL check in exynos_drm_buf drm/exynos: add device tree support for rotator drm/exynos: Add missing includes drm/exynos: add runtime pm interfaces to g2d driver ...
2013-09-05Merge tag 'fbdev-3.12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev changes from Tomi Valkeinen: - Improvements to da8xx-fb to make it support v2 of the LCDC IP, used eg in BeagleBone - Himax HX8369 controller support - Various small fixes and cleanups * tag 'fbdev-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (42 commits) video: da8xx-fb: fix the polarities of the hsync/vsync pulse video: da8xx-fb: support lcdc v2 timing register expansion video: da8xx-fb: fixing timing off by one errors video: da8xx-fb fixing incorrect porch mappings video: xilinxfb: replace devm_request_and_ioremap by devm_ioremap_resource fbmem: move EXPORT_SYMBOL annotation next to symbol declarations drivers: video: fbcmap: remove the redundency and incorrect checkings video: mxsfb: simplify use of devm_ioremap_resource Release efifb's colormap in efifb_destroy() at91/avr32/atmel_lcdfb: prepare clk before calling enable video: exynos: Ensure definitions match prototypes OMAPDSS: fix WARN_ON in 'alpha_blending_enabled' sysfs file OMAPDSS: HDMI: Fix possible NULL reference video: da8xx-fb: adding am33xx as dependency video: da8xx-fb: let compiler decide what to inline video: da8xx-fb: make clock naming consistent video: da8xx-fb: set upstream clock rate (if reqd) video: da8xx-fb: reorganize panel detection video: da8xx-fb: ensure non-null cfg in pdata video: da8xx-fb: use devres ...
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