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2016-11-29rtlwifi: Fix enter/exit power_saveLarry Finger
In commit a5ffbe0a1993 ("rtlwifi: Fix scheduling while atomic bug") and commit a269913c52ad ("rtlwifi: Rework rtl_lps_leave() and rtl_lps_enter() to use work queue"), an error was introduced in the power-save routines due to the fact that leaving PS was delayed by the use of a work queue. This problem is fixed by detecting if the enter or leave routines are in interrupt mode. If so, the workqueue is used to place the request. If in normal mode, the enter or leave routines are called directly. Fixes: a269913c52ad ("rtlwifi: Rework rtl_lps_leave() and rtl_lps_enter() to use work queue") Reported-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29mt7601u: wait for clear rxq when stopping macAnthony Romano
mt7601u_mac_stop_hw should stop polling the rxq once it remains empty but instead continues polling after the rxq status stays clear; bringing down the interface takes about six seconds from this alone. Speed up path by exiting rxq loop once status repeatedly polls empty. Signed-off-by: Anthony Romano <anthony.romano@coreos.com> Reviewed-by: Jakub Kicinski <kubakici@wp.pl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: fix scheduled scan result handling for newer chipsArend Van Spriel
The scan results for scheduled scan as retrieved from the device have changed. A field has been added which is not needed. However, the appended info is. Luckily they are versioned so check that to find out the location of the appended data. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: use requested scan interval in scheduled scanArend Van Spriel
User-space can specify the interval for the scheduled scan. This interval is found in scheduled scan plan. The driver supports only one plan, which is legacy behaviour. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: remove restriction from .sched_scan_start() callbackArend Van Spriel
In the .sched_scan_start() callback a condition was checked whether a normal scan was ongoing. However, there is no need for this check as it is ok to start the scheduled scan irrespective whether or not a normal scan is ongoing. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: use provided channels for scheduled scanArend Van Spriel
User-space can provide list of channels in the schedule scan request. This was ignored so all channels supported and allowed by the device were used. This patch configures the device to use the channels as listed in the request. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: move scheduled scan activation to pno source fileArend Van Spriel
Rework .sched_scan_start() callback moving actual configuration of the device in pno source file. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: split up brcmf_pno_config() functionArend Van Spriel
The brcmf_pno_config() function handles two configurations in firmware. Split it and have caller sort out what is needed. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: make internal escan more genericArend Van Spriel
For scheduled scan we initiate an escan in firmware to obtain more info missing from the scheduled scan notification we get from firmware. For upcoming functionality this is also required so make it a bit more generic. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: change prototype for brcmf_do_escan()Arend Van Spriel
Reduce the number of parameters as the removed ones can be obtained through struct brcmf_if parameter. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: fix handling ssids in .sched_scan_start() callbackArend Van Spriel
The ssids list in the scheduled scan request were not properly taken into account when configuring in firmware. The hidden bit was set for any ssid resulting in active scanning for all. Only set it for ssids that are in the ssids list. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: move pno helper functions in separate source fileArend Van Spriel
Introducing new source file for pno related functionality. Moving existing pno functions. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: add support for 43341 chipArend Van Spriel
This chip was already supported, but seems a device came up giving a different chip identifier. So adding that effectively mapping to the same firmware file as for 43340 chip. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29brcmfmac: add pcie host dongle interface rev6 supportFranky Lin
In rev6 of pcie host dongle interface protocol, host needs to maximum supported ring number from dongle shared memory and set up ring buffer and ring indices offset accordingly. Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29mwifiex: pcie: implement timeout loop for FW programming doorbellBrian Norris
Marvell Wifi PCIe modules don't always behave nicely for PCIe power management when their firmware hasn't been loaded, particularly after suspending the PCIe link one or more times. When this happens, we might end up spinning forever in this status-polling tight loop. Let's make this less tight by adding a timeout and by sleeping a bit in between reads, as we do with the other similar loops. This prevents us from hogging a CPU even in such pathological cases, and allows the FW initialization to just fail gracefully instead. I chose the same polling parameters as the earlier loop in this function, and empirically, I found that this loop never makes it more than about 12 cycles in a sane FW init sequence. I had no official information on the actual intended latency for this portion of the download. Signed-off-by: Brian Norris <briannorris@chromium.org> Acked-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29mwifiex: Remove unused 'bcd_usb' variableKirtika Ruchandani
mwifiex_usb_probe() defines and sets bcd_usb but does not use it, Compiling with W=1 gives the following warning, fix it. mwifiex/usb.c: In function ‘mwifiex_usb_probe’: mwifiex/usb.c:383:41: warning: variable ‘bcd_usb’ set but not used [-Wunused-but-set-variable] The unused variable seems to be present since 4daffe354366 which introduced mwifiex_usb_probe(). Fixes: 4daffe354366 ("mwifiex: add support for Marvell USB8797 chipset") Cc: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29mwifiex: Removed unused 'pkt_type' variableKirtika Ruchandani
Commit 92263a841b15 introduced mwifiex_deaggr_sdio_pkt which initializes variable pkt_type but does not use it. Compiling with W=1 gives the following warning, fix it. mwifiex/sdio.c: In function ‘mwifiex_deaggr_sdio_pkt’: mwifiex/sdio.c:1198:6: warning: variable ‘pkt_type’ set but not used [-Wunused-but-set-variable] Fixes: 92263a841b15 ("mwifiex: add SDIO rx single port aggregation") Cc: Zhaoyang Liu <liuzy@marvell.com> Cc: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29mwifiex: Remove unused 'pm_flag' variableKirtika Ruchandani
mwifiex_sdio_resume() intializes pm_flag, just like mwifiex_sdio_suspend(), but does not use it. Compiling with W=1 gives the following warning, fix it. mwifiex/sdio.c: In function ‘mwifiex_sdio_resume’: mwifiex/sdio.c:234:16: warning: variable ‘pm_flag’ set but not used [-Wunused-but-set-variable] sdio_get_host_pm_caps() is just an acessor, so the call to it is safe to remove. The unused variable seems to be present since 5e6e3a92b9a4 which introduced mwifiex_sdio_resume(). Fixes: 5e6e3a92b9a4 ("wireless: mwifiex: initial commit for Marvell mwifiex driver") Cc: Bing Zhao <bzhao@marvell.com> Cc: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29mwifiex: Remove unused 'adapter'variableKirtika Ruchandani
Commit 3935ccc14d2c introduced mwifiex_tm_cmd() which initializes struct mwifiex_adapter* adapter, but doesn't use it. Compiling with W=1 gives the following warning, fix it. mwifiex/cfg80211.c: In function ‘mwifiex_tm_cmd’: mwifiex/cfg80211.c:3973:26: warning: variable ‘adapter’ set but not used [-Wunused-but-set-variable] Fixes: 3935ccc14d2c ("mwifiex: add cfg80211 testmode support") Cc: Xinming Hu <huxm@marvell.com> Cc: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29mwifiex: Remove unused 'sta_ptr' variableKirtika Ruchandani
Commit 429d90d2212b introduced mwifiex_cmd_tdls_oper() which initializes struct mwifiex_sta_node* sta_ptr, but does not use it. Compiling with W=1 gives the following warning, fix it. mwifiex/sta_cmd.c: In function ‘mwifiex_cmd_tdls_oper’: mwifiex/sta_cmd.c:1732:27: warning: variable ‘sta_ptr’ set but not used [-Wunused-but-set-variable] Fixes: 429d90d2212b ("mwifiex: add cfg80211 tdls_oper handler support") Cc: Avinash Patil <patila@marvell.com> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29mwifiex: Remove unused 'chan_num' variableKirtika Ruchandani
Commit b5413e6b2228 removed all uses of chan_num in mwifiex_config_scan(). Compiling mwifiex with W=1 gives the following warning, fix it. mwifiex/scan.c: In function ‘mwifiex_config_scan’: mwifiex/scan.c:830:6: warning: variable ‘chan_num’ set but not used [-Wunused-but-set-variable] Fixes: b5413e6b2228 ("mwifiex: increase the number of nodes in command pool") Cc: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29mwifiex: Removed unused mwifiex_private* 'priv' variableKirtika Ruchandani
Commit bec568ff5107 removed the last remaining usage of struct mwifiex_private* priv in mwifiex_fw_dpc(), by removing the call to mwifiex_del_virtual_intf(). Compiling mwifiex/ with W=1 gives the following warning, fix it. mwifiex/main.c: In function ‘mwifiex_fw_dpc’: mwifiex/main.c:520:26: warning: variable ‘priv’ set but not used [-Wunused-but-set-variable] Fixes: bec568ff5107 ("mwifiex: failure path handling in mwifiex_add_virtual_intf()") Cc: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kirtika Ruchandani <kirtika@google.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-11-29perf tools: Introduce perf hooksWang Nan
Perf hooks allow hooking user code at perf events. They can be used for manipulation of BPF maps, taking snapshot and reporting results. In this patch two perf hook points are introduced: record_start and record_end. To avoid buggy user actions, a SIGSEGV signal handler is introduced into 'perf record'. It turns off perf hook if it causes a segfault and report an error to help debugging. A test case for perf hook is introduced. Test result: $ ./buildperf/perf test -v hook 50: Test perf hooks : --- start --- test child forked, pid 10311 SIGSEGV is observed as expected, try to recover. Fatal error (SEGFAULT) in perf hook 'test' test child finished with 0 ---- end ---- Test perf hooks: Ok Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Alexei Starovoitov <ast@fb.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Joe Stringer <joe@ovn.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-5-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-11-29tools lib bpf: Retrive bpf_map through offset of bpf_map_defWang Nan
Add a new API to libbpf, caller is able to get bpf_map through the offset of bpf_map_def to 'maps' section. The API will be used to help jitted perf hook code find fd of a map. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Joe Stringer <joe@ovn.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-4-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-11-29tools lib bpf: Add private field for bpf_objectWang Nan
Similar to other classes defined in libbpf.h (map and program), allow 'object' class has its own private data. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: He Kuang <hekuang@huawei.com> Cc: Joe Stringer <joe@ovn.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-3-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-11-29tools lib bpf: Add missing BPF functionsWang Nan
Add more BPF map operations to libbpf. Also add bpf_obj_{pin,get}(). They can be used on not only BPF maps but also BPF programs. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: He Kuang <hekuang@huawei.com> Cc: Joe Stringer <joe@ovn.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-2-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-11-29drm/radeon: fix check for port PM availabilityAlex Deucher
The ATPX method does not always exist on the dGPU, it may be located at the iGPU. The parent device of the iGPU is the root port for which bridge_d3 is false. This accidentally enables the legacy PM method which conflicts with port PM and prevented the dGPU from powering on. Ported from amdgpu commit: drm/amdgpu: fix check for port PM availability from Peter Wu. Fixes: d3ac31f3b4bf9fad (drm/radeon: fix power state when port pm is unavailable (v2)) Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Peter Wu <peter@lekensteyn.nl> Cc: <stable@vger.kernel.org> # 4.8+
2016-11-29drm/amdgpu: fix check for port PM availabilityPeter Wu
The ATPX method does not always exist on the dGPU, it may be located at the iGPU. The parent device of the iGPU is the root port for which bridge_d3 is false. This accidentally enables the legacy PM method which conflicts with port PM and prevented the dGPU from powering on. Fixes: 1db4496f167b ("drm/amdgpu: fix power state when port pm is unavailable") Reported-and-tested-by: Mike Lothian <mike@fireburn.co.uk> Signed-off-by: Peter Wu <peter@lekensteyn.nl> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: <stable@vger.kernel.org> # 4.8+
2016-11-29[media] vivid: Set color_enc on HSV formatsRicardo Ribalda
HSV formats were missing the color encoding, which leads to an invalid ycbcr_enc value during get_fmt and try_fmt. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-29[media] v4l2-tpg: Init hv_enc field with a valid valueRicardo Ribalda
Zero is not a valid value for hsv_enc. Set the field to a valid initial value. This is not a problem for vivid, because it sets the field to 180 via tpg_s_hsv_enc() on the control initialization, but it might be a source of errors for other drivers that use this code. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-29[media] cec: pass parent device in register(), not allocate()Hans Verkuil
The cec_allocate_adapter function doesn't need the parent device, only the cec_register_adapter function needs it. Drop the cec_devnode parent field, since devnode.dev.parent can be used instead. This change makes the framework consistent with other frameworks where the parent device is not used until the device is registered. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-29[media] uvcvideo: freeing an error pointerDan Carpenter
A recent cleanup introduced a potential dereference of -EFAULT when we call kfree(map->menu_info). Fixes: 4cc5bed1caeb ("[media] uvcvideo: Use memdup_user() rather than duplicating its implementation") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-29scripts/decode_stacktrace.sh: Fix address line detection on x86Josh Poimboeuf
Kirill reported that the decode_stacktrace.sh script was broken by the following commit: bb5e5ce545f2 ("x86/dumpstack: Remove kernel text addresses from stack dump") Fix it by updating the per-line absolute address check to also check for function-based address lines like the following: write_sysrq_trigger+0x51/0x60 I didn't remove the check for absolute addresses because it's still needed for ARM. Reported-by: Kirill A. Shutemov <kirill@shutemov.name> Tested-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <alexander.levin@verizon.com> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: bb5e5ce545f2 ("x86/dumpstack: Remove kernel text addresses from stack dump") Link: http://lkml.kernel.org/r/20161128230635.4n2ofgawltgexgcg@treble Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-11-29Merge tag 'irqchip-4.10' of ↵Thomas Gleixner
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core Pull irqchip updates for 4.10 from Marc Zyngier: - xylinx interrupt controller made architecture agnostic (microblaze, ppc, mips) - GICv3 ITS now supported on 32bit ARM (mostly useful for virtual machines) - Some arm64 GICv3 cleanups
2016-11-29powerpc/mm: Fix lazy icache flush on pre-POWER5Benjamin Herrenschmidt
On 64-bit CPUs with no-execute support and non-snooping icache, such as 970 or POWER4, we have a software mechanism to ensure coherency of the cache (using exec faults when needed). This was broken due to a logic error when the code was rewritten from assembly to C, previously the assembly code did: BEGIN_FTR_SECTION mr r4,r30 mr r5,r7 bl hash_page_do_lazy_icache END_FTR_SECTION(CPU_FTR_NOEXECUTE|CPU_FTR_COHERENT_ICACHE, CPU_FTR_NOEXECUTE) Which tests that: (cpu_features & (NOEXECUTE | COHERENT_ICACHE)) == NOEXECUTE Which says that the current cpu does have NOEXECUTE, but does not have COHERENT_ICACHE. Fixes: 91f1da99792a ("powerpc/mm: Convert 4k hash insert to C") Fixes: 89ff725051d1 ("powerpc/mm: Convert __hash_page_64K to C") Fixes: a43c0eb8364c ("powerpc/mm: Convert 4k insert from asm to C") Cc: stable@vger.kernel.org # v4.5+ Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> [mpe: Change log verbosification] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-29ovl: fix d_real() for stacked fsMiklos Szeredi
Handling of recursion in d_real() is completely broken. Recursion is only done in the 'inode != NULL' case. But when opening the file we have 'inode == NULL' hence d_real() will return an overlay dentry. This won't work since overlayfs doesn't define its own file operations, so all file ops will fail. Fix by doing the recursion first and the check against the inode second. Bash script to reproduce the issue written by Quentin: - 8< - - - - - 8< - - - - - 8< - - - - - 8< - - - - tmpdir=$(mktemp -d) pushd ${tmpdir} mkdir -p {upper,lower,work} echo -n 'rocks' > lower/ksplice mount -t overlay level_zero upper -o lowerdir=lower,upperdir=upper,workdir=work cat upper/ksplice tmpdir2=$(mktemp -d) pushd ${tmpdir2} mkdir -p {upper,work} mount -t overlay level_one upper -o lowerdir=${tmpdir}/upper,upperdir=upper,workdir=work ls -l upper/ksplice cat upper/ksplice - 8< - - - - - 8< - - - - - 8< - - - - - 8< - - - - Reported-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Fixes: 2d902671ce1c ("vfs: merge .d_select_inode() into .d_real()") Cc: <stable@vger.kernel.org> # v4.8+
2016-11-29powerpc/virtex: Use generic xilinx irqchip driverZubair Lutfullah Kakakhel
The Xilinx interrupt controller driver is now available in drivers/irqchip. Switch to using that driver. Acked-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/xilinx: Try to fall back if xlnx,kind-of-intr not providedZubair Lutfullah Kakakhel
The powerpc dts file does not have the xlnx,kind-of-intr property. Instead of erroring out, give a warning instead. And attempt to continue to probe the interrupt controller while assuming kind-of-intr is 0x0 as a fall back. Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/xilinx: Add support for parent intcZubair Lutfullah Kakakhel
The MIPS based xilfpga platform has the following IRQ structure Peripherals --> xilinx_intcontroller -> mips_cpu_int controller Add support for the driver to chain the irq handler Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/xilinx: Rename get_irq to xintc_get_irqZubair Lutfullah Kakakhel
Now that the driver is generic and used by multiple archs, get_irq is too generic. Rename get_irq to xintc_get_irq to avoid any conflicts Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/xilinx: Restructure and use jump label apiZubair Lutfullah Kakakhel
Add a global structure to house various variables. And cleanup read/write handling by using jump label api. Tested-by; Michal Simek <michal.simek@xilinx.com> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/xilinx: Clean up print messagesZubair Lutfullah Kakakhel
Remove __func__ and prefix irq-xilinx in various debug prints Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29microblaze/irqchip: Move intc driver to irqchipZubair Lutfullah Kakakhel
The Xilinx AXI Interrupt Controller IP block is used by the MIPS based xilfpga platform and a few PowerPC based platforms. Move the interrupt controller code out of arch/microblaze so that it can be used by everyone Tested-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29ARM: virt: Select ARM_GIC_V3_ITSVladimir Murzin
This patch allows ARM guests to use GICv3 ITS on an arm64 host Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29ARM: gic-v3-its: Add 32bit support to GICv3 ITSVladimir Murzin
Wire-up flush_dcache, readq- and writeq-like gic-v3-its assessors, so GICv3 ITS gets all it needs to be built and run. Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/gic-v3-its: Specialise readq and writeq accessesVladimir Murzin
readq and writeq type of assessors are not supported in AArch32, so we need to specialise them and glue later with series of 32-bit accesses on AArch32 side. Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/gic-v3-its: Specialise flush_dcache operationVladimir Murzin
It'd be better to switch to CMA... but before that done redirect flush_dcache operation, so 32-bit implementation could be wired latter. Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/gic-v3-its: Narrow down Entry Size when used as a dividerVladimir Murzin
GITS_BASER<n>'s Entry Size is much smaller than 64-bit, but when it used as a divider it forces compiler to generate __aeabi_uldivmod if build in 32-bit mode. So, casting it to int (like it is done in other places) where used as a divider would give a hint to compiler that 32-bit division can be used. Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/gic-v3-its: Change unsigned types for AArch32 compatibilityVladimir Murzin
Make sure that constants which are supposed to be applied on 64-bit data is actually unsigned long long, so they won't be truncated when used in 32-bit mode. Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-11-29irqchip/gic-v3: Use nops macro for Cavium ThunderX erratum 23154Will Deacon
The workaround for Cavium ThunderX erratum 23154 has a homebrew pipeflush built out of NOP sequences around the read of the IAR. This patch converts the code to use the new nops macro, which makes it a little easier to read. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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