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2022-02-11dt-bindings: serial: fsl-lpuart: Drop i.MX8QXP backwards compatibilityAbel Vesa1-3/+2
Drop the i.MX8QXP backwards compatibility with i.MX7ULP since they differ from clocks handling point of view. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Abel Vesa <abel.vesa@nxp.com> Link: https://lore.kernel.org/r/20220210201407.567860-1-abel.vesa@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-11tty: serial: imx: Add fast path when rs485 delays are 0Harald Seiler1-4/+14
Right now, even when `delay_rts_before_send` and `delay_rts_after_send` are 0, the hrtimer is triggered (with timeout 0) which can introduce a few 100us of additional overhead on slower i.MX platforms. Implement a fast path when the delays are 0, where the RTS signal is toggled immediately instead of going through an hrtimer. This fast path behaves identical to the code before delay support was implemented. Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Harald Seiler <hws@denx.de> Link: https://lore.kernel.org/r/20220119145204.238767-1-hws@denx.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08serial: 8250_bcm2835aux: Add ACPI supportAdrien Thierry1-6/+46
Add ACPI support to 8250_bcm2835aux driver. This makes it possible to use the miniuart on the Raspberry Pi with the tianocore/edk2 UEFI firmware. Tested-by: Jeremy Linton <jeremy.linton@arm.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Adrien Thierry <athierry@redhat.com> Link: https://lore.kernel.org/r/20220207232129.402882-1-athierry@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08dt-bindings: serial: renesas,sci: Document RZ/G2UL SoCBiju Das1-0/+2
Add SCI binding documentation for Renesas RZ/G2UL SoC. No driver changes are required as generic compatible string "renesas,sci" will be used as a fallback. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20220207142213.19552-3-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08dt-bindings: serial: renesas,scif: Document RZ/G2UL SoCBiju Das1-1/+2
Add SCIF binding documentation for Renesas RZ/G2UL SoC. SCIF block on RZ/G2UL is identical to one found on the RZ/G2L SoC. No driver changes are required as RZ/G2L compatible string "renesas,scif-r9a07g044" will be used as a fallback. Whilst dropped the comments after RZ/G2{L,LC} fallback as to avoid updating the comment over and over again when a new IP is added Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20220207142213.19552-2-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08dt-bindings: serial: renesas,scif: Remove redundant renesas,scif-r9a07g054Biju Das1-2/+0
This patch removes redundant "renesas,scif-r9a07g054" from binding documentation as it uses renesas,scif-r9a07g044 fallback. Whilst remove the additional renesas,scif-r9a07g054 from Items. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20220207142213.19552-1-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08dt-bindings: serial: fsl-lpuart: Add i.MX8DXL compatibleAbel Vesa1-1/+3
Add i.MX8DXL lpuart compatible to the bindings documentation. Reviewed-by: Peng Fan <peng.fan@nxp.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Abel Vesa <abel.vesa@nxp.com> Link: https://lore.kernel.org/r/20220118131715.2051965-1-abel.vesa@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08serial: stm32: enable / disable wake irqs for mcrtl_gpio wakeup sourcesErwan Le Ray1-1/+2
Enable mctrl_gpio wake_irq if device_may_wakeup when usart is suspended, and disable mctrl_gpios wake_irq if device_may_wakeup when usart is resumed. Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com> Link: https://lore.kernel.org/r/20220203171644.12231-3-erwan.leray@foss.st.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08serial: mctrl_gpio: add a new API to enable / disable wake_irqErwan Le Ray2-0/+56
Add a new API to enable / disable wake_irq in order to enable gpio irqs as wakeup irqs for the uart port. Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com> Link: https://lore.kernel.org/r/20220203171644.12231-2-erwan.leray@foss.st.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-04serial: core: Drop duplicate NULL check in uart_*shutdown()Andy Shevchenko1-4/+2
The free_page(addr), which becomes free_pages(addr, 0) checks addr against 0. No need to repeat this check in the callers. Acked-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220204152808.10808-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-04tty: Drop duplicate NULL check in TTY port functionsAndy Shevchenko1-7/+4
The free_page(addr), which becomes free_pages(addr, 0) checks addr against 0. No need to repeat this check in the callers, i.e. tty_port_free_xmit_buf() and tty_port_destructor(). Note, INIT_KFIFO() is safe without that check, because it operates on a separate member and doesn't rely on the FIFO itself to be allocated. Acked-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220204153253.11006-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-04serial: core: Fix the definition name in the comment of UPF_* flagsAndy Shevchenko1-1/+1
From day 1 the UPF_LAST_USER wasn't defined, a specific number of the last bit for userspace. Instead the code always relies on ASYNCB_LAST_USER. Fix comment accordingly. Fixes: 904326ecac02 ("tty,serial: Unify UPF_* and ASYNC_* flag definitions") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220203144521.16457-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-04amiserial: Drop duplicate NULL check in shutdown()Andy Shevchenko1-4/+2
The free_page(addr), which becomes free_pages(addr, 0) checks addr against 0. No need to repeat this check in the caller. Acked-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220202165655.5647-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-04dt-bindings: serial: samsung_uart: Document Exynos5433 compatibleKrzysztof Kozlowski1-0/+2
Document the Exynos5433 UART compatible, supported since commit 31ec77aca72e ("serial: samsung: Add the support for Exynos5433 SoC"). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220202151310.285561-2-krzysztof.kozlowski@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-31dt-bindings: serial: Add compatible for Mediatek MT8186Allen-KH Cheng1-0/+1
This commit adds dt-binding documentation of uart for Mediatek MT8186 SoC Platform. Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com> Link: https://lore.kernel.org/r/20220128062050.23978-3-allen-kh.cheng@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-31serial: 8250_exar: derive nr_ports from PCI ID for Acces I/O cardsAndy Shevchenko1-24/+13
In the similar way how it's done in 8250_pericom, derive the number of the UART ports from PCI ID for Acces I/O cards. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220127180608.71509-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-31tty: Replace acpi_bus_get_device()Rafael J. Wysocki1-5/+2
Replace acpi_bus_get_device() that is going to be dropped with acpi_fetch_acpi_dev(). No intentional functional impact. Reviewed-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/7355105.EvYhyI6sBW@kreacher Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-30Merge tag 'v5.17-rc2' into tty-nextGreg Kroah-Hartman433-2086/+4640
We need the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-30Linux 5.17-rc2v5.17-rc2Linus Torvalds1-1/+1
2022-01-30Merge tag 'irq_urgent_for_v5.17_rc2_p2' of ↵Linus Torvalds6-36/+121
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Borislav Petkov: - Drop an unused private data field in the AIC driver - Various fixes to the realtek-rtl driver - Make the GICv3 ITS driver compile again in !SMP configurations - Force reset of the GICv3 ITSs at probe time to avoid issues during kexec - Yet another kfree/bitmap_free conversion - Various DT updates (Renesas, SiFive) * tag 'irq_urgent_for_v5.17_rc2_p2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: dt-bindings: interrupt-controller: sifive,plic: Group interrupt tuples dt-bindings: interrupt-controller: sifive,plic: Fix number of interrupts dt-bindings: irqchip: renesas-irqc: Add R-Car V3U support irqchip/gic-v3-its: Reset each ITS's BASERn register before probe irqchip/gic-v3-its: Fix build for !SMP irqchip/loongson-pch-ms: Use bitmap_free() to free bitmap irqchip/realtek-rtl: Service all pending interrupts irqchip/realtek-rtl: Fix off-by-one in routing irqchip/realtek-rtl: Map control data to virq irqchip/apple-aic: Drop unused ipi_hwirq field
2022-01-30Merge tag 'perf_urgent_for_v5.17_rc2_p2' of ↵Linus Torvalds1-4/+19
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Borislav Petkov: - Prevent accesses to the per-CPU cgroup context list from another CPU except the one it belongs to, to avoid list corruption - Make sure parent events are always woken up to avoid indefinite hangs in the traced workload * tag 'perf_urgent_for_v5.17_rc2_p2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Fix cgroup event list management perf: Always wake the parent event
2022-01-30Merge tag 'sched_urgent_for_v5.17_rc2_p2' of ↵Linus Torvalds1-4/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Borislav Petkov: "Make sure the membarrier-rseq fence commands are part of the reported set when querying membarrier(2) commands through MEMBARRIER_CMD_QUERY" * tag 'sched_urgent_for_v5.17_rc2_p2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/membarrier: Fix membarrier-rseq fence command missing from query bitmask
2022-01-30Merge tag 'x86_urgent_for_v5.17_rc2' of ↵Linus Torvalds2-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Add another Intel CPU model to the list of CPUs supporting the processor inventory unique number - Allow writing to MCE thresholding sysfs files again - a previous change had accidentally disabled it and no one noticed. Goes to show how much is this stuff used * tag 'x86_urgent_for_v5.17_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Add Xeon Icelake-D to list of CPUs that support PPIN x86/MCE/AMD: Allow thresholding interface updates after init
2022-01-30Merge branch 'akpm' (patches from Andrew)Linus Torvalds12-70/+91
Merge misc fixes from Andrew Morton: "12 patches. Subsystems affected by this patch series: sysctl, binfmt, ia64, mm (memory-failure, folios, kasan, and psi), selftests, and ocfs2" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: ocfs2: fix a deadlock when commit trans jbd2: export jbd2_journal_[grab|put]_journal_head psi: fix "defined but not used" warnings when CONFIG_PROC_FS=n psi: fix "no previous prototype" warnings when CONFIG_CGROUPS=n mm, kasan: use compare-exchange operation to set KASAN page tag kasan: test: fix compatibility with FORTIFY_SOURCE tools/testing/scatterlist: add missing defines mm: page->mapping folio->mapping should have the same offset memory-failure: fetch compound_head after pgmap_pfn_valid() ia64: make IA64_MCA_RECOVERY bool instead of tristate binfmt_misc: fix crash when load/unload module include/linux/sysctl.h: fix register_sysctl_mount_point() return type
2022-01-30ocfs2: fix a deadlock when commit transJoseph Qi1-14/+11
commit 6f1b228529ae introduces a regression which can deadlock as follows: Task1: Task2: jbd2_journal_commit_transaction ocfs2_test_bg_bit_allocatable spin_lock(&jh->b_state_lock) jbd_lock_bh_journal_head __jbd2_journal_remove_checkpoint spin_lock(&jh->b_state_lock) jbd2_journal_put_journal_head jbd_lock_bh_journal_head Task1 and Task2 lock bh->b_state and jh->b_state_lock in different order, which finally result in a deadlock. So use jbd2_journal_[grab|put]_journal_head instead in ocfs2_test_bg_bit_allocatable() to fix it. Link: https://lkml.kernel.org/r/20220121071205.100648-3-joseph.qi@linux.alibaba.com Fixes: 6f1b228529ae ("ocfs2: fix race between searching chunks and release journal_head from buffer_head") Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com> Reported-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com> Tested-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com> Reported-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Jun Piao <piaojun@huawei.com> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30jbd2: export jbd2_journal_[grab|put]_journal_headJoseph Qi1-0/+2
Patch series "ocfs2: fix a deadlock case". This fixes a deadlock case in ocfs2. We firstly export jbd2 symbols jbd2_journal_[grab|put]_journal_head as preparation and later use them in ocfs2 insread of jbd_[lock|unlock]_bh_journal_head to fix the deadlock. This patch (of 2): This exports symbols jbd2_journal_[grab|put]_journal_head, which will be used outside modules, e.g. ocfs2. Link: https://lkml.kernel.org/r/20220121071205.100648-2-joseph.qi@linux.alibaba.com Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Cc: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com> Cc: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30psi: fix "defined but not used" warnings when CONFIG_PROC_FS=nSuren Baghdasaryan1-38/+41
When CONFIG_PROC_FS is disabled psi code generates the following warnings: kernel/sched/psi.c:1364:30: warning: 'psi_cpu_proc_ops' defined but not used [-Wunused-const-variable=] 1364 | static const struct proc_ops psi_cpu_proc_ops = { | ^~~~~~~~~~~~~~~~ kernel/sched/psi.c:1355:30: warning: 'psi_memory_proc_ops' defined but not used [-Wunused-const-variable=] 1355 | static const struct proc_ops psi_memory_proc_ops = { | ^~~~~~~~~~~~~~~~~~~ kernel/sched/psi.c:1346:30: warning: 'psi_io_proc_ops' defined but not used [-Wunused-const-variable=] 1346 | static const struct proc_ops psi_io_proc_ops = { | ^~~~~~~~~~~~~~~ Make definitions of these structures and related functions conditional on CONFIG_PROC_FS config. Link: https://lkml.kernel.org/r/20220119223940.787748-3-surenb@google.com Fixes: 0e94682b73bf ("psi: introduce psi monitor") Signed-off-by: Suren Baghdasaryan <surenb@google.com> Reported-by: kernel test robot <lkp@intel.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30psi: fix "no previous prototype" warnings when CONFIG_CGROUPS=nSuren Baghdasaryan1-6/+5
When CONFIG_CGROUPS is disabled psi code generates the following warnings: kernel/sched/psi.c:1112:21: warning: no previous prototype for 'psi_trigger_create' [-Wmissing-prototypes] 1112 | struct psi_trigger *psi_trigger_create(struct psi_group *group, | ^~~~~~~~~~~~~~~~~~ kernel/sched/psi.c:1182:6: warning: no previous prototype for 'psi_trigger_destroy' [-Wmissing-prototypes] 1182 | void psi_trigger_destroy(struct psi_trigger *t) | ^~~~~~~~~~~~~~~~~~~ kernel/sched/psi.c:1249:10: warning: no previous prototype for 'psi_trigger_poll' [-Wmissing-prototypes] 1249 | __poll_t psi_trigger_poll(void **trigger_ptr, | ^~~~~~~~~~~~~~~~ Change the declarations of these functions in the header to provide the prototypes even when they are unused. Link: https://lkml.kernel.org/r/20220119223940.787748-2-surenb@google.com Fixes: 0e94682b73bf ("psi: introduce psi monitor") Signed-off-by: Suren Baghdasaryan <surenb@google.com> Reported-by: kernel test robot <lkp@intel.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30mm, kasan: use compare-exchange operation to set KASAN page tagPeter Collingbourne1-5/+12
It has been reported that the tag setting operation on newly-allocated pages can cause the page flags to be corrupted when performed concurrently with other flag updates as a result of the use of non-atomic operations. Fix the problem by using a compare-exchange loop to update the tag. Link: https://lkml.kernel.org/r/20220120020148.1632253-1-pcc@google.com Link: https://linux-review.googlesource.com/id/I456b24a2b9067d93968d43b4bb3351c0cec63101 Fixes: 2813b9c02962 ("kasan, mm, arm64: tag non slab memory allocated via pagealloc") Signed-off-by: Peter Collingbourne <pcc@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30kasan: test: fix compatibility with FORTIFY_SOURCEMarco Elver1-0/+5
With CONFIG_FORTIFY_SOURCE enabled, string functions will also perform dynamic checks using __builtin_object_size(ptr), which when failed will panic the kernel. Because the KASAN test deliberately performs out-of-bounds operations, the kernel panics with FORTIFY_SOURCE, for example: | kernel BUG at lib/string_helpers.c:910! | invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI | CPU: 1 PID: 137 Comm: kunit_try_catch Tainted: G B 5.16.0-rc3+ #3 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 | RIP: 0010:fortify_panic+0x19/0x1b | ... | Call Trace: | kmalloc_oob_in_memset.cold+0x16/0x16 | ... Fix it by also hiding `ptr` from the optimizer, which will ensure that __builtin_object_size() does not return a valid size, preventing fortified string functions from panicking. Link: https://lkml.kernel.org/r/20220124160744.1244685-1-elver@google.com Signed-off-by: Marco Elver <elver@google.com> Reported-by: Nico Pache <npache@redhat.com> Reviewed-by: Nico Pache <npache@redhat.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30tools/testing/scatterlist: add missing definesMaor Gottlieb1-1/+2
The cited commits replaced preemptible with pagefault_disabled and flush_kernel_dcache_page with flush_dcache_page respectively, hence need to update the corresponding defines in the test. scatterlist.c: In function ‘sg_miter_stop’: scatterlist.c:919:4: warning: implicit declaration of function ‘flush_dcache_page’ [-Wimplicit-function-declaration] flush_dcache_page(miter->page); ^~~~~~~~~~~~~~~~~ In file included from linux/scatterlist.h:8:0, from scatterlist.c:9: scatterlist.c:922:18: warning: implicit declaration of function ‘pagefault_disabled’ [-Wimplicit-function-declaration] WARN_ON_ONCE(!pagefault_disabled()); ^ linux/mm.h:23:25: note: in definition of macro ‘WARN_ON_ONCE’ int __ret_warn_on = !!(condition); \ ^~~~~~~~~ Link: https://lkml.kernel.org/r/20220118082105.1737320-1-maorg@nvidia.com Fixes: 723aca208516 ("mm/scatterlist: replace the !preemptible warning in sg_miter_stop()") Fixes: 0e84f5dbf8d6 ("scatterlist: replace flush_kernel_dcache_page with flush_dcache_page") Signed-off-by: Maor Gottlieb <maorg@nvidia.com> Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30mm: page->mapping folio->mapping should have the same offsetWei Yang1-0/+1
As with the other members of folio, the offset of page->mapping and folio->mapping must be the same. The compile-time check was inadvertently removed during development. Add it back. [willy@infradead.org: changelog redo] Link: https://lkml.kernel.org/r/20220104011734.21714-1-richard.weiyang@gmail.com Signed-off-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30memory-failure: fetch compound_head after pgmap_pfn_valid()Joao Martins1-0/+6
memory_failure_dev_pagemap() at the moment assumes base pages (e.g. dax_lock_page()). For devmap with compound pages fetch the compound_head in case a tail page memory failure is being handled. Currently this is a nop, but in the advent of compound pages in dev_pagemap it allows memory_failure_dev_pagemap() to keep working. Without this fix memory-failure handling (i.e. MCEs on pmem) with device-dax configured namespaces will regress (and crash). Link: https://lkml.kernel.org/r/20211202204422.26777-2-joao.m.martins@oracle.com Reported-by: Jane Chu <jane.chu@oracle.com> Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30ia64: make IA64_MCA_RECOVERY bool instead of tristateRandy Dunlap1-1/+1
In linux-next, IA64_MCA_RECOVERY uses the (new) function make_task_dead(), which is not exported for use by modules. Instead of exporting it for one user, convert IA64_MCA_RECOVERY to be a bool Kconfig symbol. In a config file from "kernel test robot <lkp@intel.com>" for a different problem, this linker error was exposed when CONFIG_IA64_MCA_RECOVERY=m. Fixes this build error: ERROR: modpost: "make_task_dead" [arch/ia64/kernel/mca_recovery.ko] undefined! Link: https://lkml.kernel.org/r/20220124213129.29306-1-rdunlap@infradead.org Fixes: 0e25498f8cd4 ("exit: Add and use make_task_dead.") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Suggested-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30binfmt_misc: fix crash when load/unload moduleTong Zhang1-4/+4
We should unregister the table upon module unload otherwise something horrible will happen when we load binfmt_misc module again. Also note that we should keep value returned by register_sysctl_mount_point() and release it later, otherwise it will leak. Also, per Christian's comment, to fully restore the old behavior that won't break userspace the check(binfmt_misc_header) should be eliminated. To reproduce: modprobe binfmt_misc modprobe -r binfmt_misc modprobe binfmt_misc modprobe -r binfmt_misc modprobe binfmt_misc resulting in modprobe: can't load module binfmt_misc (kernel/fs/binfmt_misc.ko): Cannot allocate memory and an unhappy kernel: binfmt_misc: Failed to create fs/binfmt_misc sysctl mount point binfmt_misc: Failed to create fs/binfmt_misc sysctl mount point BUG: unable to handle page fault for address: fffffbfff8004802 Call Trace: init_misc_binfmt+0x2d/0x1000 [binfmt_misc] Link: https://lkml.kernel.org/r/20220124181812.1869535-2-ztong0001@gmail.com Fixes: 3ba442d5331f ("fs: move binfmt_misc sysctl to its own file") Signed-off-by: Tong Zhang <ztong0001@gmail.com> Co-developed-by: Christian Brauner<brauner@kernel.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-30include/linux/sysctl.h: fix register_sysctl_mount_point() return typeAndrew Morton1-1/+1
The CONFIG_SYSCTL=n stub returns the wrong type. Fixes: ee9efac48a082 ("sysctl: add helper to register a sysctl mount point") Reported-by: kernel test robot <lkp@intel.com> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Tong Zhang <ztong0001@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-29Merge tag 'irqchip-fixes-5.17-1' of ↵Thomas Gleixner6-36/+121
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent Pull irqchip fixes from Marc Zyngier: - Drop an unused private data field in the AIC driver - Various fixes to the realtek-rtl driver - Make the GICv3 ITS driver compile again in !SMP configurations - Force reset of the GICv3 ITSs at probe time to avoid issues during kexec - Yet another kfree/bitmap_free conversion - Various DT updates (Renesas, SiFive) Link: https://lore.kernel.org/r/20220128174217.517041-1-maz@kernel.org
2022-01-29Merge tag 'pci-v5.17-fixes-2' of ↵Linus Torvalds4-19/+9
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci fixes from Bjorn Helgaas: - Fix compilation warnings in new mt7621 driver (Sergio Paracuellos) - Restore the sysfs "rom" file for VGA shadow ROMs, which was broken when converting "rom" to be a static attribute (Bjorn Helgaas) * tag 'pci-v5.17-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI/sysfs: Find shadow ROM before static attribute initialization PCI: mt7621: Remove unused function pcie_rmw() PCI: mt7621: Drop of_match_ptr() to avoid unused variable
2022-01-29Merge tag 'gpio-fixes-for-v5.17-rc2' of ↵Linus Torvalds2-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: "Two fixes for the gpio-simulator: - fix a bug with hogs not being set-up in gpio-sim when user-space sets the chip label to an empty string - include the gpio-sim documentation in the index" * tag 'gpio-fixes-for-v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: sim: add doc file to index file gpio: sim: check the label length when setting up device properties
2022-01-29Merge tag 'char-misc-5.17-rc2' of ↵Linus Torvalds2-9/+10
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are two small char/misc driver fixes for 5.17-rc2 that fix some reported issues. They are: - fix up a merge issue in the at25.c driver that ended up dropping some lines in the driver. The removed lines ended being needed, so this restores it and the driver works again. - counter core fix where the wrong error was being returned, NULL should be the correct error for when memory is gone here, like the kmalloc() core does. Both of these have been in linux-next this week with no reported issues" * tag 'char-misc-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: counter: fix an IS_ERR() vs NULL bug eeprom: at25: Restore missing allocation
2022-01-29Merge tag 'tty-5.17-rc2' of ↵Linus Torvalds10-106/+205
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver fixes from Greg KH: "Here are some small bug fixes and reverts for reported problems with the tty core and drivers. They include: - revert the fifo use for the 8250 console mode. It caused too many regressions and problems, and had a bug in it as well. This is being reworked and should show up in a later -rc1 release, but it's not ready for 5.17 - rpmsg tty race fix - restore the cyclades.h uapi header file. Turns out a compiler test suite used it for some unknown reason. Bring it back just for the parts that are used by the builder test so they continue to build. No functionality is restored as no one actually has this hardware anymore, nor is it really tested. - stm32 driver fixes - n_gsm flow control fixes - pl011 driver fix - rs485 initialization fix All of these have been in linux-next this week with no reported problems" * tag 'tty-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: kbuild: remove include/linux/cyclades.h from header file check serial: core: Initialize rs485 RTS polarity already on probe serial: pl011: Fix incorrect rs485 RTS polarity on set_mctrl serial: stm32: fix software flow control transfer serial: stm32: prevent TDR register overwrite when sending x_char tty: n_gsm: fix SW flow control encoding/handling serial: 8250: of: Fix mapped region size when using reg-offset property tty: rpmsg: Fix race condition releasing tty port tty: Partially revert the removal of the Cyclades public API tty: Add support for Brainboxes UC cards. Revert "tty: serial: Use fifo in 8250 console driver"
2022-01-29Merge tag 'usb-5.17-rc2' of ↵Linus Torvalds16-15/+115
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB driver fixes from Greg KH: "Here are some small USB driver fixes for 5.17-rc2 that resolve a number of reported problems. These include: - typec driver fixes - xhci platform driver fixes for suspending - ulpi core fix - role.h build fix - new device ids - syzbot-reported bugfixes - gadget driver fixes - dwc3 driver fixes - other small fixes All of these have been in linux-next this week with no reported issues" * tag 'usb-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: cdnsp: Fix segmentation fault in cdns_lost_power function usb: dwc2: gadget: don't try to disable ep0 in dwc2_hsotg_suspend usb: gadget: at91_udc: fix incorrect print type usb: dwc3: xilinx: Fix error handling when getting USB3 PHY usb: dwc3: xilinx: Skip resets and USB3 register settings for USB2.0 mode usb: xhci-plat: fix crash when suspend if remote wake enable usb: common: ulpi: Fix crash in ulpi_match() usb: gadget: f_sourcesink: Fix isoc transfer for USB_SPEED_SUPER_PLUS ucsi_ccg: Check DEV_INT bit only when starting CCG4 USB: core: Fix hang in usb_kill_urb by adding memory barriers usb-storage: Add unusual-devs entry for VL817 USB-SATA bridge usb: typec: tcpm: Do not disconnect when receiving VSAFE0V usb: typec: tcpm: Do not disconnect while receiving VBUS off usb: typec: Don't try to register component master without components usb: typec: Only attempt to link USB ports if there is fwnode usb: typec: tcpci: don't touch CC line if it's Vconn source usb: roles: fix include/linux/usb/role.h compile issue
2022-01-29Merge tag 'block-5.17-2022-01-28' of git://git.kernel.dk/linux-blockLinus Torvalds8-29/+35
Pull block fixes from Jens Axboe: - NVMe pull request - add the IGNORE_DEV_SUBNQN quirk for Intel P4500/P4600 SSDs (Wu Zheng) - remove the unneeded ret variable in nvmf_dev_show (Changcheng Deng) - Fix for a hang regression introduced with a patch in the merge window, where low queue depth devices would not always get woken correctly (Laibin) - Small series fixing an IO accounting issue with bio backed dm devices (Mike, Yu) * tag 'block-5.17-2022-01-28' of git://git.kernel.dk/linux-block: dm: properly fix redundant bio-based IO accounting dm: revert partial fix for redundant bio-based IO accounting block: add bio_start_io_acct_time() to control start_time blk-mq: Fix wrong wakeup batch configuration which will cause hang nvme-fabrics: remove the unneeded ret variable in nvmf_dev_show nvme-pci: add the IGNORE_DEV_SUBNQN quirk for Intel P4500/P4600 SSDs blk-mq: fix missing blk_account_io_done() in error path block: fix memory leak in disk_register_independent_access_ranges
2022-01-29Merge tag 'io_uring-5.17-2022-01-28' of git://git.kernel.dk/linux-blockLinus Torvalds1-3/+8
Pull io_uring fixes from Jens Axboe: "Just two small fixes this time: - Fix a bug that can lead to node registration taking 1 second, when it should finish much quicker (Dylan) - Remove an unused argument from a function (Usama)" * tag 'io_uring-5.17-2022-01-28' of git://git.kernel.dk/linux-block: io_uring: remove unused argument from io_rsrc_node_alloc io_uring: fix bug in slow unregistering of nodes
2022-01-29Merge tag 'powerpc-5.17-3' of ↵Linus Torvalds12-11/+38
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix VM debug warnings on boot triggered via __set_fixmap(). - Fix a debug warning in the 64-bit Book3S PMU handling code. - Fix nested guest HFSCR handling with multiple vCPUs on Power9 or later. - Fix decrementer storm caused by a recent change, seen with some configs. Thanks to Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy, Fabiano Rosas, Maxime Bizon, Nicholas Piggin, and Sachin Sant. * tag 'powerpc-5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s/interrupt: Fix decrementer storm KVM: PPC: Book3S HV Nested: Fix nested HFSCR being clobbered with multiple vCPUs powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending powerpc/fixmap: Fix VM debug warning on unmap
2022-01-29Merge tag 'arm64-fixes' of ↵Linus Torvalds10-13/+144
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Catalin Marinas: - Errata workarounds for Cortex-A510: broken hardware dirty bit management, detection code for the TRBE (tracing) bugs with the actual fixes going in via the CoreSight tree. - Cortex-X2 errata handling for TRBE (inheriting the workarounds from Cortex-A710). - Fix ex_handler_load_unaligned_zeropad() to use the correct struct members. - A couple of kselftest fixes for FPSIMD. - Silence the vdso "no previous prototype" warning. - Mark start_backtrace() notrace and NOKPROBE_SYMBOL. * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: cpufeature: List early Cortex-A510 parts as having broken dbm kselftest/arm64: Correct logging of FPSIMD register read via ptrace kselftest/arm64: Skip VL_INHERIT tests for unsupported vector types arm64: errata: Add detection for TRBE trace data corruption arm64: errata: Add detection for TRBE invalid prohibited states arm64: errata: Add detection for TRBE ignored system register writes arm64: Add Cortex-A510 CPU part definition arm64: extable: fix load_unaligned_zeropad() reg indices arm64: Mark start_backtrace() notrace and NOKPROBE_SYMBOL arm64: errata: Update ARM64_ERRATUM_[2119858|2224489] with Cortex-X2 ranges arm64: Add Cortex-X2 CPU part definition arm64: vdso: Fix "no previous prototype" warning
2022-01-29Merge tag 'fixes-v5.17-lsm-ceph-null' of ↵Linus Torvalds2-3/+14
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security sybsystem fix from James Morris: "Fix NULL pointer crash in LSM via Ceph, from Vivek Goyal" * tag 'fixes-v5.17-lsm-ceph-null' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: security, lsm: dentry_init_security() Handle multi LSM registration
2022-01-29Merge tag 'docs-5.17-3' of git://git.lwn.net/linuxLinus Torvalds6-2/+51
Pull documentation fixes from Jonathan Corbet: "A few documentation fixes for 5.17" * tag 'docs-5.17-3' of git://git.lwn.net/linux: docs/vm: Fix typo in *harden* Documentation: arm: marvell: Extend Avanta list docs: fix typo in Documentation/kernel-hacking/locking.rst docs: Hook the RTLA documents into the kernel docs build
2022-01-28dm: properly fix redundant bio-based IO accountingMike Snitzer1-2/+3
Record the start_time for a bio but defer the starting block core's IO accounting until after IO is submitted using bio_start_io_acct_time(). This approach avoids the need to mess around with any of the individual IO stats in response to a bio_split() that follows bio submission. Reported-by: Bud Brown <bubrown@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org Depends-on: e45c47d1f94e ("block: add bio_start_io_acct_time() to control start_time") Signed-off-by: Mike Snitzer <snitzer@redhat.com> Link: https://lore.kernel.org/r/20220128155841.39644-4-snitzer@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-28dm: revert partial fix for redundant bio-based IO accountingMike Snitzer1-15/+0
Reverts a1e1cb72d9649 ("dm: fix redundant IO accounting for bios that need splitting") because it was too narrow in scope (only addressed redundant 'sectors[]' accounting and not ios, nsecs[], etc). Cc: stable@vger.kernel.org Signed-off-by: Mike Snitzer <snitzer@redhat.com> Link: https://lore.kernel.org/r/20220128155841.39644-3-snitzer@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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