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2020-07-24io_uring: remove init for unused listPavel Begunkov
poll*() doesn't use req->list, don't init it. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: add req->timeout.listPavel Begunkov
Instead of using shared req->list, hang timeouts up on their own list entry. struct io_timeout have enough extra space for it, but if that will be a problem ->inflight_entry can reused for that. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: use completion list for CQ overflowPavel Begunkov
As with the completion path, also use compl.list for overflowed requests. If cleaned up properly, nobody needs per-op data there anymore. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: use inflight_entry list for iopoll'ingPavel Begunkov
req->inflight_entry is used to track requests that grabbed files_struct. Let's share it with iopoll list, because the only iopoll'ed ops are reads and writes, which don't need a file table. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: rename ctx->poll into ctx->iopollPavel Begunkov
It supports both polling and I/O polling. Rename ctx->poll to clearly show that it's only in I/O poll case. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: share completion list w/ per-op spacePavel Begunkov
Calling io_req_complete(req) means that the request is done, and there is nothing left but to clean it up. That also means that per-op data after that should not be used, so we're free to reuse it in completion path, e.g. to store overflow_list as done in this patch. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: follow **iovec idiom in io_import_iovecPavel Begunkov
As for import_iovec(), return !=NULL iovec from io_import_iovec() only when it should be freed. That includes returning NULL when iovec is already in req->io, because it should be deallocated by other means, e.g. inside op handler. After io_setup_async_rw() local iovec to ->io, just mark it NULL, to follow the idea in io_{read,write} as well. That's easier to follow, and especially useful if we want to reuse per-op space for completion data. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> [axboe: only call kfree() on non-NULL pointer] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: add a helper for async rw iovec prepPavel Begunkov
Preparing reads/writes for async is a bit tricky. Extract a helper to not repeat it twice. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: simplify io_req_map_rw()Pavel Begunkov
Don't deref req->io->rw every time, but put it in a local variable. This looks prettier, generates less instructions, and doesn't break alias analysis. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: replace rw->task_work with rq->task_workPavel Begunkov
io_kiocb::task_work was de-unionised, and is not planned to be shared back, because it's too useful and commonly used. Hence, instead of keeping a separate task_work in struct io_async_rw just reuse req->task_work. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: extract io_sendmsg_copy_hdr()Pavel Begunkov
Don't repeat send msg initialisation code, it's error prone. Extract and use a helper function. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: use more specific type in rcv/snd msg cpPavel Begunkov
send/recv msghdr initialisation works with struct io_async_msghdr, but pulls the whole struct io_async_ctx for no reason. That complicates it with composite accessing, e.g. io->msg. Use and pass the most specific type, which is struct io_async_msghdr. It is the larget field in union io_async_ctx and doesn't save stack space, but looks clearer. The most of the changes are replacing "io->msg." with "iomsg->" Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: rename sr->msg into umsgPavel Begunkov
Every second field in send/recv is called msg, make it a bit more understandable by renaming ->msg, which is a user provided ptr, to ->umsg. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: fix sq array offset calculationDmitry Vyukov
rings_size() sets sq_offset to the total size of the rings (the returned value which is used for memory allocation). This is wrong: sq array should be located within the rings, not after them. Set sq_offset to where it should be. Fixes: 75b28affdd6a ("io_uring: allocate the two rings together") Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Hristo Venev <hristo@venev.name> Cc: io-uring@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24Merge branch 'io_uring-5.8' into for-5.9/io_uringJens Axboe
Merge in io_uring-5.8 fixes, as changes/cleanups to how we do locked mem accounting require a fixup, and only one of the spots are noticed by git as the other merges cleanly. The flags fix from io_uring-5.8 also causes a merge conflict, the leak fix for recvmsg, the double poll fix, and the link failure locking fix. * io_uring-5.8: io_uring: fix lockup in io_fail_links() io_uring: fix ->work corruption with poll_add io_uring: missed req_init_async() for IOSQE_ASYNC io_uring: always allow drain/link/hardlink/async sqe flags io_uring: ensure double poll additions work with both request types io_uring: fix recvmsg memory leak with buffer selection io_uring: fix not initialised work->flags io_uring: fix missing msg_name assignment io_uring: account user memory freed when exit has been queued io_uring: fix memleak in io_sqe_files_register() io_uring: fix memleak in __io_sqe_files_update() io_uring: export cq overflow status to userspace Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: fix lockup in io_fail_links()Pavel Begunkov
io_fail_links() doesn't consider REQ_F_COMP_LOCKED leading to nested spin_lock(completion_lock) and lockup. [ 197.680409] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 6-... } 18239 jiffies s: 1421 root: 0x40/. [ 197.680411] rcu: blocking rcu_node structures: [ 197.680412] Task dump for CPU 6: [ 197.680413] link-timeout R running task 0 1669 1 0x8000008a [ 197.680414] Call Trace: [ 197.680420] ? io_req_find_next+0xa0/0x200 [ 197.680422] ? io_put_req_find_next+0x2a/0x50 [ 197.680423] ? io_poll_task_func+0xcf/0x140 [ 197.680425] ? task_work_run+0x67/0xa0 [ 197.680426] ? do_exit+0x35d/0xb70 [ 197.680429] ? syscall_trace_enter+0x187/0x2c0 [ 197.680430] ? do_group_exit+0x43/0xa0 [ 197.680448] ? __x64_sys_exit_group+0x18/0x20 [ 197.680450] ? do_syscall_64+0x52/0xa0 [ 197.680452] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24io_uring: fix ->work corruption with poll_addPavel Begunkov
req->work might be already initialised by the time it gets into __io_arm_poll_handler(), which will corrupt it by using fields that are in an union with req->work. Luckily, the only side effect is missing put_creds(). Clean req->work before going there. Suggested-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-24Merge tag 'memory-controller-drv-5.9' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/drivers Memory controller drivers for v5.9 The drivers/memory directory with memory controller drivers, over the last days grew in numbers but lacked any coordinated care. The generic part (device tree helpers) were pulled in through various trees, depending on driver needs. The patchset is a first try to improve code quality of memory controller drivers. Mostly these are non-intrusive fixes for GCC, checkpatch or sparse warnings. This also fixes missing SPDX tags or improves generic code quality (whitespace, const correctness). Last commit appoints also Krzysztof Kozlowski as a maintainer. * tag 'memory-controller-drv-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (22 commits) MAINTAINERS: Add Krzysztof Kozlowski as maintainer of memory controllers memory: samsung: exynos-srom: Describe the Kconfig entry memory: Describe the MEMORY Kconfig entry memory: da8xx-ddrctl: Remove unused 'node' variable memory: fsl_ifc: Fix whitespace issues memory: pl172: Add GPLv2 SPDX license header memory: omap-gpmc: Fix whitespace issue memory: omap-gpmc: Include <linux/sizes.h> for SZ_16M memory: mtk-smi: Add argument to function pointer definition memory: brcmstb_dpfe: Remove unneeded braces memory: brcmstb_dpfe: Constify the contents of string memory: ti-emif-pm: Fix cast to iomem pointer memory: ti-aemif: Rename SS to SSTROBE to avoid name conflicts memory: emif: Silence platform_get_irq() error in driver memory: emif: Fix whitespace coding style violations memory: emif: Put constant in comparison on the right side memory: emif-asm-offsets: Add GPLv2 SPDX license header memory: of: Remove unneeded extern from function declarations memory: of: Correct indentation memory: of: Remove __func__ in device related messages ... Link: https://lore.kernel.org/r/20200724160314.8543-1-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-24MAINTAINERS: arm/amlogic: add designated reviewersKevin Hilman
It's already been the case for some time that Neil, Jerome and Martin are doing the bulk of the important reviewing. Update MAINTAINERS to reflect reality. Link: https://lore.kernel.org/r/20200724184107.24600-1-khilman@baylibre.com Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Jerome Brunet <jbrunet@baylibre.com> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-24arm64: enable time namespace supportAndrei Vagin
CONFIG_TIME_NS is dependes on GENERIC_VDSO_TIME_NS. Signed-off-by: Andrei Vagin <avagin@gmail.com> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Dmitry Safonov <dima@arista.com> Link: https://lore.kernel.org/r/20200624083321.144975-7-avagin@gmail.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-07-24arm64/vdso: Restrict splitting VVAR VMAAndrei Vagin
Forbid splitting VVAR VMA resulting in a stricter ABI and reducing the amount of corner-cases to consider while working further on VDSO time namespace support. As the offset from timens to VVAR page is computed compile-time, the pages in VVAR should stay together and not being partically mremap()'ed. Signed-off-by: Andrei Vagin <avagin@gmail.com> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Dmitry Safonov <dima@arista.com> Link: https://lore.kernel.org/r/20200624083321.144975-6-avagin@gmail.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-07-24arm64/vdso: Handle faults on timens pageAndrei Vagin
If a task belongs to a time namespace then the VVAR page which contains the system wide VDSO data is replaced with a namespace specific page which has the same layout as the VVAR page. Signed-off-by: Andrei Vagin <avagin@gmail.com> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Dmitry Safonov <dima@arista.com> Link: https://lore.kernel.org/r/20200624083321.144975-5-avagin@gmail.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-07-24ALSA: hda/realtek: typo_fix: enable headset mic of ASUS ROG Zephyrus ↵Armas Spann
G14(GA401) series with ALC289 This patch fixes a small typo I accidently submitted with the initial patch. The board should be named GA401 not G401. Fixes: ff53664daff2 ("ALSA: hda/realtek: enable headset mic of ASUS ROG Zephyrus G14(G401) series with ALC289") Signed-off-by: Armas Spann <zappel@retarded.farm> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200724140837.302763-1-zappel@retarded.farm Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-24ALSA: hda/realtek: enable headset mic of ASUS ROG Zephyrus G15(GA502) series ↵Armas Spann
with ALC289 This patch adds support for headset mic to the ASUS ROG Zephyrus G15(GA502) notebook series by adding the corresponding vendor/pci_device id, as well as adding a new fixup for the used realtek ALC289. The fixup stets the correct pin to get the headset mic correctly recognized on audio-jack. Signed-off-by: Armas Spann <zappel@retarded.farm> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200724140616.298892-1-zappel@retarded.farm Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-24x86/build: Move max-page-size option to LDFLAGS_vmlinuxArvind Sankar
This option is only required for vmlinux on 64-bit, to enforce 2MiB alignment, so set it in LDFLAGS_vmlinux instead of KBUILD_LDFLAGS. Also drop the ld-option check: this option was added in binutils-2.18 and all the other places that use it already don't have the check. This reduces the size of the intermediate ELF files arch/x86/boot/setup.elf and arch/x86/realmode/rm/realmode.elf by about 2MiB each. The binary versions are unchanged. Move the LDFLAGS settings to all be together and just after CFLAGS settings are done. Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Michal Marek <michal.lkml@markovi.net> Link: https://lore.kernel.org/r/20200722184334.3785418-1-nivedita@alum.mit.edu
2020-07-24MAINTAINERS: Add Krzysztof Kozlowski as maintainer of memory controllersKrzysztof Kozlowski
The generic parts of memory controllers (of_memory.[ch]) lacked any care. The memory controller drivers were not abandoned (usually picked up by architecture maintainers) but in such case I can take care about them as well. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com>
2020-07-24memory: samsung: exynos-srom: Describe the Kconfig entryKrzysztof Kozlowski
Write short description about the Exynos SROM controller driver. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: Describe the MEMORY Kconfig entryKrzysztof Kozlowski
Write short description about the entire memory controllers section. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: da8xx-ddrctl: Remove unused 'node' variableKrzysztof Kozlowski
The variable 'node' is not used. Remove it to silence compile warning: drivers/memory/da8xx-ddrctl.c: In function 'da8xx_ddrctl_probe': drivers/memory/da8xx-ddrctl.c:105:22: warning: variable 'node' set but not used [-Wunused-but-set-variable] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: fsl_ifc: Fix whitespace issuesKrzysztof Kozlowski
Fix minor whitespace and comment issues. Do not break message strings. No functional changes. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: pl172: Add GPLv2 SPDX license headerKrzysztof Kozlowski
Add GPLv2 license header and remove GPL boiler plate text. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: omap-gpmc: Fix whitespace issueKrzysztof Kozlowski
Fix minor whitespace and comment issues. No functional changes. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: omap-gpmc: Include <linux/sizes.h> for SZ_16MKrzysztof Kozlowski
The driver uses SZ_16M which is defined in include/linux/sizes.h. On ARM it was pulled by other headers but its inclusion is necessary for compile testing on other architectures. This fixes build error when compile testing on i386 architecture: drivers/memory/omap-gpmc.c: In function ‘gpmc_cs_remap’: drivers/memory/omap-gpmc.c:961:12: error: ‘SZ_16M’ undeclared (first use in this function) Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: mtk-smi: Add argument to function pointer definitionKrzysztof Kozlowski
Fix checkpatch warning: WARNING: function definition argument 'struct device *' should also have an identifier name Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: brcmstb_dpfe: Remove unneeded bracesKrzysztof Kozlowski
Single statement blocks don't need braces. Fixes checkpatch warning: WARNING: braces {} are not necessary for single statement blocks Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Markus Mayer <mmayer@broadcom.com>
2020-07-24memory: brcmstb_dpfe: Constify the contents of stringKrzysztof Kozlowski
The string itself can be made const for safety. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Markus Mayer <mmayer@broadcom.com>
2020-07-24memory: ti-emif-pm: Fix cast to iomem pointerKrzysztof Kozlowski
Cast pointer to iomem memory properly to fix sparse warning: drivers/memory/ti-emif-pm.c:251:38: warning: incorrect type in argument 1 (different address spaces) drivers/memory/ti-emif-pm.c:251:38: expected void const volatile [noderef] __iomem *addr drivers/memory/ti-emif-pm.c:251:38: got void * Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: ti-aemif: Rename SS to SSTROBE to avoid name conflictsKrzysztof Kozlowski
SS conflicts with compile test build on i386: drivers/memory/ti-aemif.c:40:0: warning: "SS" redefined In file included from arch/x86/include/uapi/asm/ptrace.h:6:0, from arch/x86/include/asm/ptrace.h:7, from arch/x86/include/asm/math_emu.h:5, from arch/x86/include/asm/processor.h:13, from include/linux/mutex.h:19, from include/linux/notifier.h:14, from include/linux/clk.h:14, from drivers/memory/ti-aemif.c:12: arch/x86/include/uapi/asm/ptrace-abi.h:23:0: note: this is the location of the previous definition #define SS 16 Use more descriptive name (SSTROBE) to avoid the conflict. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: emif: Silence platform_get_irq() error in driverKrzysztof Kozlowski
The platform_get_irq() already prints error message so there is no need to do it again in the driver. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: emif: Fix whitespace coding style violationsKrzysztof Kozlowski
Make the code and printed messages slightly more readable. Fixes checkpatch warnings: WARNING: quoted string split across lines ERROR: space prohibited before that ',' (ctx:WxW) Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: emif: Put constant in comparison on the right sideKrzysztof Kozlowski
Fixes checkpatch warning: WARNING: Comparisons should place the constant on the right side of the test Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: emif-asm-offsets: Add GPLv2 SPDX license headerKrzysztof Kozlowski
Add GPLv2 license header and remove GPL boiler plate text. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: of: Remove unneeded extern from function declarationsKrzysztof Kozlowski
Function declarations in headers do not need to come with extern keyword. Remove them to make the declaration slightly shorter. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: of: Correct indentationKrzysztof Kozlowski
Correct indentation to match open parenthesis. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: of: Remove __func__ in device related messagesKrzysztof Kozlowski
Messages printed by generic of_memory code will still be using device context so their location/meaning will be known. Printing __func__ is not needed. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24memory: of: Remove unused headersKrzysztof Kozlowski
The of_memory.c does not use platform_device nor linked list. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24Merge tag 'mvebu-fixes-5.8-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/fixes mvebu fixes for 5.8 (part 1) - DT change for Armada 38x allowing to add the register needed to fix NETA lockup when repeatedly switching speed. * tag 'mvebu-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu: ARM: dts: armada-38x: fix NETA lockup when repeatedly switching speeds
2020-07-24Merge tag 'ti-k3-config-for-v5.9' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux into arm/defconfig Texas Instruments K3 SoC config updates for v5.9 - Enable chipid driver for j721e/am65x - Enable SDHCI driver for am65x * tag 'ti-k3-config-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux: arm64: defconfig: Enable AM654x SDHCI controller arm64: arch_k3: enable chipid driver Link: https://lore.kernel.org/r/c3e68831-c9ec-db06-d855-808ba3da3364@ti.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-24Merge tag 'mvebu-drivers-5.9-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/drivers mvebu drivers for 5.9 (part 1) For firmware on the Turris MOX (Armada 3720 based board), add support ECDSA signatures via debugfs. * tag 'mvebu-drivers-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu: firmware: turris-mox-rwtm: add debugfs documentation firmware: turris-mox-rwtm: support ECDSA signatures via debugfs Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-07-24Merge tag 'mvebu-arm-5.9-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/soc mvebu arm for 5.9 (part 1) Use of for_each_requested_gpio() for gpio driver still in plat-orion for non DT platform. * tag 'mvebu-arm-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu: ARM: orion/gpio: Make use of for_each_requested_gpio() Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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