summaryrefslogtreecommitdiff
path: root/arch/alpha
AgeCommit message (Collapse)AuthorFilesLines
5 daysalpha: don't reference obsolete termio struct for TC* constantsSam James1-4/+4
[ Upstream commit 9aeed9041929812a10a6d693af050846942a1d16 ] Similar in nature to ab107276607af90b13a5994997e19b7b9731e251. glibc-2.42 drops the legacy termio struct, but the ioctls.h header still defines some TC* constants in terms of termio (via sizeof). Hardcode the values instead. This fixes building Python for example, which falls over like: ./Modules/termios.c:1119:16: error: invalid application of 'sizeof' to incomplete type 'struct termio' Link: https://bugs.gentoo.org/961769 Link: https://bugs.gentoo.org/962600 Signed-off-by: Sam James <sam@gentoo.org> Reviewed-by: Magnus Lindholm <linmag7@gmail.com> Link: https://lore.kernel.org/r/6ebd3451908785cad53b50ca6bc46cfe9d6bc03c.1764922497.git.sam@gentoo.org Signed-off-by: Magnus Lindholm <linmag7@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-28sched: Add wrapper for get_wchan() to keep task blockedKees Cook2-4/+3
commit 42a20f86dc19f9282d974df0ba4d226c865ab9dd upstream. Having a stable wchan means the process must be blocked and for it to stay that way while performing stack unwinding. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> [arm] Tested-by: Mark Rutland <mark.rutland@arm.com> [arm64] Link: https://lkml.kernel.org/r/20211008111626.332092234@infradead.org Signed-off-by: Siddhi Katage <siddhi.katage@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-10alpha/elf: Fix misc/setarch test of util-linux by removing 32bit supportEric W. Biederman4-21/+6
[ Upstream commit b029628be267cba3c7684ec684749fe3e4372398 ] Richard Henderson <richard.henderson@linaro.org> writes[1]: > There was a Spec benchmark (I forget which) which was memory bound and ran > twice as fast with 32-bit pointers. > > I copied the idea from DEC to the ELF abi, but never did all the other work > to allow the toolchain to take advantage. > > Amusingly, a later Spec changed the benchmark data sets to not fit into a > 32-bit address space, specifically because of this. > > I expect one could delete the ELF bit and personality and no one would > notice. Not even the 10 remaining Alpha users. In [2] it was pointed out that parts of setarch weren't working properly on alpha because it has it's own SET_PERSONALITY implementation. In the discussion that followed Richard Henderson pointed out that the 32bit pointer support for alpha was never completed. Fix this by removing alpha's 32bit pointer support. As a bit of paranoia refuse to execute any alpha binaries that have the EF_ALPHA_32BIT flag set. Just in case someone somewhere has binaries that try to use alpha's 32bit pointer support. Link: https://lkml.kernel.org/r/CAFXwXrkgu=4Qn-v1PjnOR4SG0oUb9LSa0g6QXpBq4ttm52pJOQ@mail.gmail.com [1] Link: https://lkml.kernel.org/r/20250103140148.370368-1-glaubitz@physik.fu-berlin.de [2] Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Link: https://lore.kernel.org/r/87y0zfs26i.fsf_-_@email.froward.int.ebiederm.org Signed-off-by: Kees Cook <kees@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-03-13alpha: replace hardcoded stack offsets with autogenerated onesIvan Kokshaysky2-4/+2
commit 77b823fa619f97d16409ca37ad4f7936e28c5f83 upstream. This allows the assembly in entry.S to automatically keep in sync with changes in the stack layout (struct pt_regs and struct switch_stack). Cc: stable@vger.kernel.org Tested-by: Maciej W. Rozycki <macro@orcam.me.uk> Tested-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Ivan Kokshaysky <ink@unseen.parts> Signed-off-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-03-13alpha: align stack for page fault and user unaligned trap handlersIvan Kokshaysky3-13/+13
commit 3b35a171060f846b08b48646b38c30b5d57d17ff upstream. do_page_fault() and do_entUna() are special because they use non-standard stack frame layout. Fix them manually. Cc: stable@vger.kernel.org Tested-by: Maciej W. Rozycki <macro@orcam.me.uk> Tested-by: Magnus Lindholm <linmag7@gmail.com> Tested-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Maciej W. Rozycki <macro@orcam.me.uk> Suggested-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Ivan Kokshaysky <ink@unseen.parts> Signed-off-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-03-13alpha: make stack 16-byte aligned (most cases)Ivan Kokshaysky1-0/+2
commit 0a0f7362b0367634a2d5cb7c96226afc116f19c9 upstream. The problem is that GCC expects 16-byte alignment of the incoming stack since early 2004, as Maciej found out [1]: Having actually dug speculatively I can see that the psABI was changed in GCC 3.5 with commit e5e10fb4a350 ("re PR target/14539 (128-bit long double improperly aligned)") back in Mar 2004, when the stack pointer alignment was increased from 8 bytes to 16 bytes, and arch/alpha/kernel/entry.S has various suspicious stack pointer adjustments, starting with SP_OFF which is not a whole multiple of 16. Also, as Magnus noted, "ALPHA Calling Standard" [2] required the same: D.3.1 Stack Alignment This standard requires that stacks be octaword aligned at the time a new procedure is invoked. However: - the "normal" kernel stack is always misaligned by 8 bytes, thanks to the odd number of 64-bit words in 'struct pt_regs', which is the very first thing pushed onto the kernel thread stack; - syscall, fault, interrupt etc. handlers may, or may not, receive aligned stack depending on numerous factors. Somehow we got away with it until recently, when we ended up with a stack corruption in kernel/smp.c:smp_call_function_single() due to its use of 32-byte aligned local data and the compiler doing clever things allocating it on the stack. This adds padding between the PAL-saved and kernel-saved registers so that 'struct pt_regs' have an even number of 64-bit words. This makes the stack properly aligned for most of the kernel code, except two handlers which need special threatment. Note: struct pt_regs doesn't belong in uapi/asm; this should be fixed, but let's put this off until later. Link: https://lore.kernel.org/rcu/alpine.DEB.2.21.2501130248010.18889@angie.orcam.me.uk/ [1] Link: https://bitsavers.org/pdf/dec/alpha/Alpha_Calling_Standard_Rev_2.0_19900427.pdf [2] Cc: stable@vger.kernel.org Tested-by: Maciej W. Rozycki <macro@orcam.me.uk> Tested-by: Magnus Lindholm <linmag7@gmail.com> Tested-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by: Ivan Kokshaysky <ink@unseen.parts> Signed-off-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-16alpha: remove __init annotation from exported page_is_ram()Masahiro Yamada1-2/+1
commit 6ccbd7fd474674654019a20177c943359469103a upstream. EXPORT_SYMBOL and __init is a bad combination because the .init.text section is freed up after the initialization. Commit c5a130325f13 ("ACPI/APEI: Add parameter check before error injection") exported page_is_ram(), hence the __init annotation should be removed. This fixes the modpost warning in ARCH=alpha builds: WARNING: modpost: vmlinux: page_is_ram: EXPORT_SYMBOL used for init symbol. Remove __init or EXPORT_SYMBOL. Fixes: c5a130325f13 ("ACPI/APEI: Add parameter check before error injection") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-08init: Remove check_bugs() leftoversThomas Gleixner1-20/+0
commit 61235b24b9cb37c13fcad5b9596d59a1afdcec30 upstream Everything is converted over to arch_cpu_finalize_init(). Remove the check_bugs() leftovers including the empty stubs in asm-generic, alpha, parisc, powerpc and xtensa. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Link: https://lore.kernel.org/r/20230613224545.553215951@linutronix.de Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-17alpha: fix R_ALPHA_LITERAL reloc for large modulesEdward Humes1-3/+1
[ Upstream commit b6b17a8b3ecd878d98d5472a9023ede9e669ca72 ] Previously, R_ALPHA_LITERAL relocations would overflow for large kernel modules. This was because the Alpha's apply_relocate_add was relying on the kernel's module loader to have sorted the GOT towards the very end of the module as it was mapped into memory in order to correctly assign the global pointer. While this behavior would mostly work fine for small kernel modules, this approach would overflow on kernel modules with large GOT's since the global pointer would be very far away from the GOT, and thus, certain entries would be out of range. This patch fixes this by instead using the Tru64 behavior of assigning the global pointer to be 32KB away from the start of the GOT. The change made in this patch won't work for multi-GOT kernel modules as it makes the assumption the module only has one GOT located at the beginning of .got, although for the vast majority kernel modules, this should be fine. Of the kernel modules that would previously result in a relocation error, none of them, even modules like nouveau, have even come close to filling up a single GOT, and they've all worked fine under this patch. Signed-off-by: Edward Humes <aurxenon@lunos.org> Signed-off-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11genirq: Add and use an irq_data_update_affinity helperSamuel Holland1-1/+1
[ Upstream commit 073352e951f60946452da358d64841066c3142ff ] Some architectures and irqchip drivers modify the cpumask returned by irq_data_get_affinity_mask, usually by copying in to it. This is problematic for uniprocessor configurations, where the affinity mask should be constant, as it is known at compile time. Add and use a setter for the affinity mask, following the pattern of irq_data_update_effective_affinity. This allows the getter function to return a const cpumask pointer. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Xen bits Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220701200056.46555-7-samuel@sholland.org Stable-dep-of: feabecaff590 ("genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()") Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-10alpha: fix FEN fault handlingAl Viro1-15/+15
commit 977a3009547dad4a5bc95d91be4a58c9f7eedac0 upstream. Type 3 instruction fault (FPU insn with FPU disabled) is handled by quietly enabling FPU and returning. Which is fine, except that we need to do that both for fault in userland and in the kernel; the latter *can* legitimately happen - all it takes is this: .global _start _start: call_pal 0xae lda $0, 0 ldq $0, 0($0) - call_pal CLRFEN to clear "FPU enabled" flag and arrange for a signal delivery (SIGSEGV in this case). Fixed by moving the handling of type 3 into the common part of do_entIF(), before we check for kernel vs. user mode. Incidentally, the check for kernel mode is unidiomatic; the normal way to do that is !user_mode(regs). The difference is that the open-coded variant treats any of bits 63..3 of regs->ps being set as "it's user mode" while the normal approach is to check just the bit 3. PS is a 4-bit register and regs->ps always will have bits 63..4 clear, so the open-coded variant here is actually equivalent to !user_mode(regs). Harder to follow, though... Cc: stable@vger.kernel.org Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-10alpha/boot/tools/objstrip: fix the check for ELF headerAl Viro1-1/+1
[ Upstream commit 1878787797cbb019eeefe6f905514dcd557302b6 ] Just memcmp() with ELFMAG - that's the normal way to do it in userland code, which that thing is. Besides, that has the benefit of actually building - str_has_prefix() is *NOT* present in <string.h>. Fixes: 5f14596e55de "alpha: Replace strncmp with str_has_prefix" Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-02-01exit: Add and use make_task_dead.Eric W. Biederman2-4/+4
commit 0e25498f8cd43c1b5aa327f373dd094e9a006da7 upstream. There are two big uses of do_exit. The first is it's design use to be the guts of the exit(2) system call. The second use is to terminate a task after something catastrophic has happened like a NULL pointer in kernel code. Add a function make_task_dead that is initialy exactly the same as do_exit to cover the cases where do_exit is called to handle catastrophic failure. In time this can probably be reduced to just a light wrapper around do_task_dead. For now keep it exactly the same so that there will be no behavioral differences introducing this new concept. Replace all of the uses of do_exit that use it for catastraphic task cleanup with make_task_dead to make it clear what the code is doing. As part of this rename rewind_stack_do_exit rewind_stack_and_make_dead. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-31alpha: fix syscall entry in !AUDUT_SYSCALL caseAl Viro1-1/+3
[ Upstream commit f7b2431a6d22f7a91c567708e071dfcd6d66db14 ] We only want to take the slow path if SYSCALL_TRACE or SYSCALL_AUDIT is set; on !AUDIT_SYSCALL configs the current tree hits it whenever _any_ thread flag (including NEED_RESCHED, NOTIFY_SIGNAL, etc.) happens to be set. Fixes: a9302e843944 "alpha: Enable system-call auditing support" Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-31alpha: fix TIF_NOTIFY_SIGNAL handlingAl Viro1-1/+1
[ Upstream commit e2c7554cc6d85f95e3c6635f270ec839ab9fe05e ] it needs to be added to _TIF_WORK_MASK, or we might not reach do_work_pending() in the first place... Fixes: 5a9a8897c253a "alpha: add support for TIF_NOTIFY_SIGNAL" Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-07-29tty: the rest, stop using tty_schedule_flip()Jiri Slaby1-1/+1
commit b68b914494df4f79b4e9b58953110574af1cb7a2 upstream. Since commit a9c3f68f3cd8d (tty: Fix low_latency BUG) in 2014, tty_flip_buffer_push() is only a wrapper to tty_schedule_flip(). We are going to remove the latter (as it is used less), so call the former in the rest of the users. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: William Hubbs <w.d.hubbs@gmail.com> Cc: Chris Brannon <chris@the-brannons.com> Cc: Kirk Reiser <kirk@reisers.ca> Cc: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20211122111648.30379-3-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-09alpha: fix alloc_zeroed_user_highpage_movable()Matthew Wilcox (Oracle)1-1/+1
[ Upstream commit f9c668d281aa20e38c9bda3b7b0adeb8891aa15e ] Due to a typo, the final argument to alloc_page_vma() didn't refer to a real variable. This only affected CONFIG_NUMA, which was marked BROKEN in 2006 and removed from alpha in 2021. Found due to a refactoring patch. Link: https://lkml.kernel.org/r/20220504182857.4013401-4-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-05-30alpha: define get_cycles macro for arch-overrideJason A. Donenfeld1-0/+1
commit 1097710bc9660e1e588cf2186a35db3d95c4d258 upstream. Alpha defines a get_cycles() function, but it does not do the usual `#define get_cycles get_cycles` dance, making it impossible for generic code to see if an arch-specific function was defined. While the get_cycles() ifdef is not currently used, the following timekeeping patch in this series will depend on the macro existing (or not existing) when defining random_get_entropy(). Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-13rtc: Check return value from mc146818_get_time()Mateusz Jończyk1-1/+6
[ Upstream commit 0dd8d6cb9eddfe637bcd821bbfd40ebd5a0737b9 ] There are 4 users of mc146818_get_time() and none of them was checking the return value from this function. Change this. Print the appropriate warnings in callers of mc146818_get_time() instead of in the function mc146818_get_time() itself, in order not to add strings to rtc-mc146818-lib.c, which is kind of a library. The callers of alpha_rtc_read_time() and cmos_read_time() may use the contents of (struct rtc_time *) even when the functions return a failure code. Therefore, set the contents of (struct rtc_time *) to 0x00, which looks more sensible then 0xff and aligns with the (possibly stale?) comment in cmos_read_time: /* * If pm_trace abused the RTC for storage, set the timespec to 0, * which tells the caller that this RTC value is unusable. */ For consistency, do this in mc146818_get_time(). Note: hpet_rtc_interrupt() may call mc146818_get_time() many times a second. It is very unlikely, though, that the RTC suddenly stops working and mc146818_get_time() would consistently fail. Only compile-tested on alpha. Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: linux-alpha@vger.kernel.org Cc: x86@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211210200131.153887-4-mat.jonczyk@o2.pl Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-19alpha: enable GENERIC_PCI_IOMAP unconditionallyLinus Torvalds1-1/+1
With the previous commit (9caea0007601: "parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled") we can now enable GENERIC_PCI_IOMAP unconditionally on alpha, and if PCI is not enabled we will just get the nice empty helper functions that allow mixed-bus drivers to build. Example driver: the old 3com/3c59x.c driver works with either the PCI or the EISA version of the 3x59x card, but wouldn't build in an EISA-only configuration because of missing pci_iomap() and pci_iounmap() dummy wrappers. Most of the other PCI infrastructure just becomes empty wrappers even without GENERIC_PCI_IOMAP, and it's not obvious that the pci_iomap functionality shouldn't do the same, but this works. Cc: Ulrich Teichert <krypton@ulrich-teichert.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-19alpha: move __udiv_qrnnd library function to arch/alpha/lib/Linus Torvalds5-3/+5
We already had the implementation for __udiv_qrnnd (unsigned divide for multi-precision arithmetic) as part of the alpha math emulation code. But you can disable the math emulation code - even if you shouldn't - and then the MPI code that actually wants this functionality (and is needed by various crypto functions) will fail to build. So move the extended-precision divide code to be a regular library function, just like all the regular division code is. That way ie is available regardless of math-emulation. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-19alpha: mark 'Jensen' platform as no longer brokenLinus Torvalds2-6/+5
Ok, it almost certainly is still broken on actual hardware, but the immediate reason for it having been marked BROKEN was a build error that is fixed by just making sure the low-level IO header file is included sufficiently early that the __EXTERN_INLINE hackery takes effect. This was marked broken back in 2017 by commit 1883c9f49d02 ("alpha: mark jensen as broken"), but Ulrich Teichert made me look at it as part of my cross-build work to make sure -Werror actually does the right thing. There are lots of alpha configurations that do not build cleanly, but now it's no longer because Jensen wouldn't be buildable. That said, because the Jensen platform doesn't force PCI to be enabled (Jensen only had EISA), it ends up being somewhat interesting as a source of odd configs. Reported-by: Ulrich Teichert <krypton@ulrich-teichert.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-18alpha: make 'Jensen' IO functions build againLinus Torvalds2-5/+5
The Jensen IO functions are overly copmplicated because some of the IO addresses refer to special 'local IO' ports, and they get accessed differently. That then makes gcc not actually inline them, and since they were marked "extern inline" when included through the regular <asm/io.h> path, and then only marked "inline" when included from sys_jensen.c, you never necessarily got a body for the IO functions at all. The intent of the sys_jensen.c code is to actually get the non-inlined copy generated, so remove the 'inline' from the magic macro that is supposed to sort this all out. Also, do not mix 'extern inline' functions (that may or may not be inlined and will not generate a function body if they are not) with 'static inline' (that _will_ generate a function body when not inlined). Because gcc will complain about this situation: error: ‘jensen_bus_outb’ is static but used in inline function ‘jensen_outb’ which is not static because gcc basically doesn't know whether to generate a body for that static inline function or not for that call site. So make all of these use that __EXTERN_INLINE marker. Gcc will generally not inline these things on use, and then generate the function body out-of-line in sys_jensen.c. This makes the core IO functions build for the alpha Jensen config. Not that the rest then builds, because it turns out Jensen also doesn't enable PCI, which then makes other drievrs very unhappy, but that's a separate issue. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-16alpha: Declare virt_to_phys and virt_to_bus parameter as pointer to volatileGuenter Roeck1-3/+3
Some drivers pass a pointer to volatile data to virt_to_bus() and virt_to_phys(), and that works fine. One exception is alpha. This results in a number of compile errors such as drivers/net/wan/lmc/lmc_main.c: In function 'lmc_softreset': drivers/net/wan/lmc/lmc_main.c:1782:50: error: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type drivers/atm/ambassador.c: In function 'do_loader_command': drivers/atm/ambassador.c:1747:58: error: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type Declare the parameter of virt_to_phys and virt_to_bus as pointer to volatile to fix the problem. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-15alpha: Use absolute_pointer to define COMMAND_LINEGuenter Roeck1-1/+1
alpha:allmodconfig fails to build with the following error when using gcc 11.x. arch/alpha/kernel/setup.c: In function 'setup_arch': arch/alpha/kernel/setup.c:493:13: error: 'strcmp' reading 1 or more bytes from a region of size 0 Avoid the problem by declaring COMMAND_LINE as absolute_pointer(). Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-15alpha: Move setup.h out of uapiGuenter Roeck2-39/+46
Most of the contents of setup.h have no value for userspace applications. The file was probably moved to uapi accidentally. Keep the file in uapi to define the alpha-specific COMMAND_LINE_SIZE. Move all other defines to arch/alpha/include/asm/setup.h. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-08Merge branch 'akpm' (patches from Andrew)Linus Torvalds2-6/+10
Merge more updates from Andrew Morton: "147 patches, based on 7d2a07b769330c34b4deabeed939325c77a7ec2f. Subsystems affected by this patch series: mm (memory-hotplug, rmap, ioremap, highmem, cleanups, secretmem, kfence, damon, and vmscan), alpha, percpu, procfs, misc, core-kernel, MAINTAINERS, lib, checkpatch, epoll, init, nilfs2, coredump, fork, pids, criu, kconfig, selftests, ipc, and scripts" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits) scripts: check_extable: fix typo in user error message mm/workingset: correct kernel-doc notations ipc: replace costly bailout check in sysvipc_find_ipc() selftests/memfd: remove unused variable Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH configs: remove the obsolete CONFIG_INPUT_POLLDEV prctl: allow to setup brk for et_dyn executables pid: cleanup the stale comment mentioning pidmap_init(). kernel/fork.c: unexport get_{mm,task}_exe_file coredump: fix memleak in dump_vma_snapshot() fs/coredump.c: log if a core dump is aborted due to changed file permissions nilfs2: use refcount_dec_and_lock() to fix potential UAF nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group nilfs2: fix NULL pointer in nilfs_##name##_attr_release nilfs2: fix memory leak in nilfs_sysfs_create_device_group trap: cleanup trap_init() init: move usermodehelper_enable() to populate_rootfs() ...
2021-09-08alpha: pci-sysfs: fix all kernel-doc warningsRandy Dunlap1-4/+8
Fix all kernel-doc warnings in arch/alpha/kernel/pci-sysfs.c: arch/alpha/kernel/pci-sysfs.c:67: warning: No description found for return value of 'pci_mmap_resource' arch/alpha/kernel/pci-sysfs.c:115: warning: Function parameter or member 'pdev' not described in 'pci_remove_resource_files' arch/alpha/kernel/pci-sysfs.c:115: warning: Excess function parameter 'dev' description in 'pci_remove_resource_files' arch/alpha/kernel/pci-sysfs.c:230: warning: Function parameter or member 'pdev' not described in 'pci_create_resource_files' arch/alpha/kernel/pci-sysfs.c:230: warning: Excess function parameter 'dev' description in 'pci_create_resource_files' arch/alpha/kernel/pci-sysfs.c:232: warning: No description found for return value of 'pci_create_resource_files' arch/alpha/kernel/pci-sysfs.c:305: warning: Function parameter or member 'bus' not described in 'pci_adjust_legacy_attr' arch/alpha/kernel/pci-sysfs.c:305: warning: Excess function parameter 'b' description in 'pci_adjust_legacy_attr' Link: https://lkml.kernel.org/r/20210808185249.31442-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-08alpha: agp: make empty macros use do-while-0 styleRandy Dunlap1-2/+2
Copy these macros from ia64/include/asm/agp.h to avoid the "empty-body" in 'if' statment warning. drivers/char/agp/generic.c: In function 'agp_generic_destroy_page': ../drivers/char/agp/generic.c:1265:42: warning: suggest braces around empty body in an 'if' statement [-Wempty-body] 1265 | unmap_page_from_agp(page); Link: https://lkml.kernel.org/r/20210809030822.20658-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: David Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-03Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-0/+2
Merge misc updates from Andrew Morton: "173 patches. Subsystems affected by this series: ia64, ocfs2, block, and mm (debug, pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap, bootmem, sparsemem, vmalloc, kasan, pagealloc, memory-failure, hugetlb, userfaultfd, vmscan, compaction, mempolicy, memblock, oom-kill, migration, ksm, percpu, vmstat, and madvise)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (173 commits) mm/madvise: add MADV_WILLNEED to process_madvise() mm/vmstat: remove unneeded return value mm/vmstat: simplify the array size calculation mm/vmstat: correct some wrong comments mm/percpu,c: remove obsolete comments of pcpu_chunk_populated() selftests: vm: add COW time test for KSM pages selftests: vm: add KSM merging time test mm: KSM: fix data type selftests: vm: add KSM merging across nodes test selftests: vm: add KSM zero page merging test selftests: vm: add KSM unmerge test selftests: vm: add KSM merge test mm/migrate: correct kernel-doc notation mm: wire up syscall process_mrelease mm: introduce process_mrelease system call memblock: make memblock_find_in_range method private mm/mempolicy.c: use in_task() in mempolicy_slab_node() mm/mempolicy: unify the create() func for bind/interleave/prefer-many policies mm/mempolicy: advertise new MPOL_PREFERRED_MANY mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY ...
2021-09-03mm: wire up syscall process_mreleaseSuren Baghdasaryan1-0/+2
Split off from prev patch in the series that implements the syscall. Link: https://lkml.kernel.org/r/20210809185259.405936-2-surenb@google.com Signed-off-by: Suren Baghdasaryan <surenb@google.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: David Rientjes <rientjes@google.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Jan Engelhardt <jengelh@inai.de> Cc: Jann Horn <jannh@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Rik van Riel <riel@surriel.com> Cc: Roman Gushchin <guro@fb.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Tim Murray <timmurray@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-02Merge tag 'dma-mapping-5.15' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds1-3/+7
Pull dma-mapping updates from Christoph Hellwig: - fix debugfs initialization order (Anthony Iliopoulos) - use memory_intersects() directly (Kefeng Wang) - allow to return specific errors from ->map_sg (Logan Gunthorpe, Martin Oliveira) - turn the dma_map_sg return value into an unsigned int (me) - provide a common global coherent pool іmplementation (me) * tag 'dma-mapping-5.15' of git://git.infradead.org/users/hch/dma-mapping: (31 commits) hexagon: use the generic global coherent pool dma-mapping: make the global coherent pool conditional dma-mapping: add a dma_init_global_coherent helper dma-mapping: simplify dma_init_coherent_memory dma-mapping: allow using the global coherent pool for !ARM ARM/nommu: use the generic dma-direct code for non-coherent devices dma-direct: add support for dma_coherent_default_memory dma-mapping: return an unsigned int from dma_map_sg{,_attrs} dma-mapping: disallow .map_sg operations from returning zero on error dma-mapping: return error code from dma_dummy_map_sg() x86/amd_gart: don't set failed sg dma_address to DMA_MAPPING_ERROR x86/amd_gart: return error code from gart_map_sg() xen: swiotlb: return error code from xen_swiotlb_map_sg() parisc: return error code from .map_sg() ops sparc/iommu: don't set failed sg dma_address to DMA_MAPPING_ERROR sparc/iommu: return error codes from .map_sg() ops s390/pci: don't set failed sg dma_address to DMA_MAPPING_ERROR s390/pci: return error code from s390_dma_map_sg() powerpc/iommu: don't set failed sg dma_address to DMA_MAPPING_ERROR powerpc/iommu: return error code from .map_sg() ops ...
2021-09-02Merge tag 'asm-generic-5.15' of ↵Linus Torvalds1-2/+0
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic updates from Arnd Bergmann: "The main content for 5.15 is a series that cleans up the handling of strncpy_from_user() and strnlen_user(), removing a lot of slightly incorrect versions of these in favor of the lib/strn*.c helpers that implement these correctly and more efficiently. The only architectures that retain a private version now are mips, ia64, um and parisc. I had offered to convert those at all, but Thomas Bogendoerfer wanted to keep the mips version for the moment until he had a chance to do regression testing. The branch also contains two patches for bitops and for ffs()" * tag 'asm-generic-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: bitops/non-atomic: make @nr unsigned to avoid any DIV asm-generic: ffs: Drop bogus reference to ffz location asm-generic: reverse GENERIC_{STRNCPY_FROM,STRNLEN}_USER symbols asm-generic: remove extra strn{cpy_from,len}_user declarations asm-generic: uaccess: remove inline strncpy_from_user/strnlen_user s390: use generic strncpy/strnlen from_user microblaze: use generic strncpy/strnlen from_user csky: use generic strncpy/strnlen from_user arc: use generic strncpy/strnlen from_user hexagon: use generic strncpy/strnlen from_user h8300: remove stale strncpy_from_user asm-generic/uaccess.h: remove __strncpy_from_user/__strnlen_user
2021-09-02Merge branch 'exit-cleanups-for-v5.15' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull exit cleanups from Eric Biederman: "In preparation of doing something about PTRACE_EVENT_EXIT I have started cleaning up various pieces of code related to do_exit. Most of that code I did not manage to get tested and reviewed before the merge window opened but a handful of very useful cleanups are ready to be merged. The first change is simply the removal of the bdflush system call. The code has now been disabled long enough that even the oldest userspace working userspace setups anyone can find to test are fine with the bdflush system call being removed. Changing m68k fsp040_die to use force_sigsegv(SIGSEGV) instead of calling do_exit directly is interesting only in that it is nearly the most difficult of the incorrect uses of do_exit to remove. The change to the seccomp code to simply send a signal instead of calling do_coredump directly is a very nice little cleanup made possible by realizing the existing signal sending helpers were missing a little bit of functionality that is easy to provide" * 'exit-cleanups-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: signal/seccomp: Dump core when there is only one live thread signal/seccomp: Refactor seccomp signal and coredump generation signal/m68k: Use force_sigsegv(SIGSEGV) in fpsp040_die exit/bdflush: Remove the deprecated bdflush system call
2021-09-02Merge branch 'siginfo-si_trapno-for-v5.15' of ↵Linus Torvalds5-20/+18
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull siginfo si_trapno updates from Eric Biederman: "The full set of si_trapno changes was not appropriate as a fix for the newly added SIGTRAP TRAP_PERF, and so I postponed the rest of the related cleanups. This is the rest of the cleanups for si_trapno that reduces it from being a really weird arch special case that is expect to be always present (but isn't) on the architectures that support it to being yet another field in the _sigfault union of struct siginfo. The changes have been reviewed and marinated in linux-next. With the removal of this awkward special case new code (like SIGTRAP TRAP_PERF) that works across architectures should be easier to write and maintain" * 'siginfo-si_trapno-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: signal: Rename SIL_PERF_EVENT SIL_FAULT_PERF_EVENT for consistency signal: Verify the alignment and size of siginfo_t signal: Remove the generic __ARCH_SI_TRAPNO support signal/alpha: si_trapno is only used with SIGFPE and SIGTRAP TRAP_UNK signal/sparc: si_trapno is only used with SIGILL ILL_ILLTRP arm64: Add compile-time asserts for siginfo_t offsets arm: Add compile-time asserts for siginfo_t offsets sparc64: Add compile-time asserts for siginfo_t offsets
2021-09-01Merge tag 'tty-5.15-rc1' of ↵Linus Torvalds1-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial updates from Greg KH: "Here is the "big" set of tty/serial driver patches for 5.15-rc1 Nothing major in here at all, just some driver updates and more cleanups on old tty apis and code that needed it that includes: - tty.h cleanup of things that didn't belong in it - other tty cleanups by Jiri - driver cleanups - rs485 support added to amba-pl011 driver - dts updates - stm32 serial driver updates - other minor fixes and driver updates All have been in linux-next for a while with no reported problems" * tag 'tty-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (83 commits) tty: serial: uartlite: Use read_poll_timeout for a polling loop tty: serial: uartlite: Use constants in early_uartlite_putc tty: Fix data race between tiocsti() and flush_to_ldisc() serial: vt8500: Use of_device_get_match_data serial: tegra: Use of_device_get_match_data serial: 8250_ingenic: Use of_device_get_match_data tty: serial: linflexuart: Remove redundant check to simplify the code tty: serial: fsl_lpuart: do software reset for imx7ulp and imx8qxp tty: serial: fsl_lpuart: enable two stop bits for lpuart32 tty: serial: fsl_lpuart: fix the wrong mapbase value mxser: use semi-colons instead of commas tty: moxa: use semi-colons instead of commas tty: serial: fsl_lpuart: check dma_tx_in_progress in tx dma callback tty: replace in_irq() with in_hardirq() serial: sh-sci: fix break handling for sysrq serial: stm32: use devm_platform_get_and_ioremap_resource() serial: stm32: use the defined variable to simplify code Revert "arm pl011 serial: support multi-irq request" tty: serial: samsung: Add Exynos850 SoC data tty: serial: samsung: Fix driver data macros style ...
2021-08-09alpha: return error code from alpha_pci_map_sg()Martin Oliveira1-3/+7
The .map_sg() op now expects an error code instead of zero on failure. pci_map_single_1() can fail for different reasons, but since the only supported type of error return is DMA_MAPPING_ERROR, we coalesce those errors into EIO. ENOMEM is returned when no page tables can be allocated. Signed-off-by: Martin Oliveira <martin.oliveira@eideticom.com> Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2021-08-09Merge 5.14-rc5 into tty-nextGreg Kroah-Hartman15-31/+31
We need the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-04sock: allow reading and changing sk_userlocks with setsockoptPavel Tikhomirov1-0/+2
SOCK_SNDBUF_LOCK and SOCK_RCVBUF_LOCK flags disable automatic socket buffers adjustment done by kernel (see tcp_fixup_rcvbuf() and tcp_sndbuf_expand()). If we've just created a new socket this adjustment is enabled on it, but if one changes the socket buffer size by setsockopt(SO_{SND,RCV}BUF*) it becomes disabled. CRIU needs to call setsockopt(SO_{SND,RCV}BUF*) on each socket on restore as it first needs to increase buffer sizes for packet queues restore and second it needs to restore back original buffer sizes. So after CRIU restore all sockets become non-auto-adjustable, which can decrease network performance of restored applications significantly. CRIU need to be able to restore sockets with enabled/disabled adjustment to the same state it was before dump, so let's add special setsockopt for it. Let's also export SOCK_SNDBUF_LOCK and SOCK_RCVBUF_LOCK flags to uAPI so that using these interface one can reenable automatic socket buffer adjustment on their sockets. Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-30Merge tag 'libata-5.14-2021-07-30' of git://git.kernel.dk/linux-blockLinus Torvalds1-1/+0
Pull libata fixlets from Jens Axboe: - A fix for PIO highmem (Christoph) - Kill HAVE_IDE as it's now unused (Lukas) * tag 'libata-5.14-2021-07-30' of git://git.kernel.dk/linux-block: arch: Kconfig: clean up obsolete use of HAVE_IDE libata: fix ata_pio_sector for CONFIG_HIGHMEM
2021-07-30arch: Kconfig: clean up obsolete use of HAVE_IDELukas Bulwahn1-1/+0
The arch-specific Kconfig files use HAVE_IDE to indicate if IDE is supported. As IDE support and the HAVE_IDE config vanishes with commit b7fb14d3ac63 ("ide: remove the legacy ide driver"), there is no need to mention HAVE_IDE in all those arch-specific Kconfig files. The issue was identified with ./scripts/checkkconfigsymbols.py. Fixes: b7fb14d3ac63 ("ide: remove the legacy ide driver") Suggested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20210728182115.4401-1-lukas.bulwahn@gmail.com Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-07-30asm-generic: reverse GENERIC_{STRNCPY_FROM,STRNLEN}_USER symbolsArnd Bergmann1-2/+0
Most architectures do not need a custom implementation, and in most cases the generic implementation is preferred, so change the polariy on these Kconfig symbols to require architectures to select them when they provide their own version. The new name is CONFIG_ARCH_HAS_{STRNCPY_FROM,STRNLEN}_USER. The remaining architectures at the moment are: ia64, mips, parisc, um and xtensa. We should probably convert these as well, but I was not sure how far to take this series. Thomas Bogendoerfer had some concerns about converting mips but may still do some more detailed measurements to see which version is better. Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Jeff Dike <jdike@addtoit.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Richard Weinberger <richard@nod.at> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: linux-ia64@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: linux-parisc@vger.kernel.org Cc: linux-s390@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-xtensa@linux-xtensa.org Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Helge Deller <deller@gmx.de> # parisc Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-07-29alpha: register early reserved memory in memblockMike Rapoport1-6/+7
The memory reserved by console/PALcode or non-volatile memory is not added to memblock.memory. Since commit fa3354e4ea39 (mm: free_area_init: use maximal zone PFNs rather than zone sizes) the initialization of the memory map relies on the accuracy of memblock.memory to properly calculate zone sizes. The holes in memblock.memory caused by absent regions reserved by the firmware cause incorrect initialization of struct pages which leads to BUG() during the initial page freeing: BUG: Bad page state in process swapper pfn:2ffc53 page:fffffc000ecf14c0 refcount:0 mapcount:1 mapping:0000000000000000 index:0x0 flags: 0x0() raw: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 raw: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 page dumped because: nonzero mapcount Modules linked in: CPU: 0 PID: 0 Comm: swapper Not tainted 5.7.0-03841-gfa3354e4ea39-dirty #26 fffffc0001b5bd68 fffffc0001b5be80 fffffc00011cd148 fffffc000ecf14c0 fffffc00019803df fffffc0001b5be80 fffffc00011ce340 fffffc000ecf14c0 0000000000000000 fffffc0001b5be80 fffffc0001b482c0 fffffc00027d6618 fffffc00027da7d0 00000000002ff97a 0000000000000000 fffffc0001b5be80 fffffc00011d1abc fffffc000ecf14c0 fffffc0002d00000 fffffc0001b5be80 fffffc0001b2350c 0000000000300000 fffffc0001b48298 fffffc0001b482c0 Trace: [<fffffc00011cd148>] bad_page+0x168/0x1b0 [<fffffc00011ce340>] free_pcp_prepare+0x1e0/0x290 [<fffffc00011d1abc>] free_unref_page+0x2c/0xa0 [<fffffc00014ee5f0>] cmp_ex_sort+0x0/0x30 [<fffffc00014ee5f0>] cmp_ex_sort+0x0/0x30 [<fffffc000101001c>] _stext+0x1c/0x20 Fix this by registering the reserved ranges in memblock.memory. Link: https://lore.kernel.org/lkml/20210726192311.uffqnanxw3ac5wwi@ivybridge Fixes: fa3354e4ea39 ("mm: free_area_init: use maximal zone PFNs rather than zone sizes") Reported-by: Matt Turner <mattst88@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Matt Turner <mattst88@gmail.com>
2021-07-27tty: drop put_tty_driverJiri Slaby1-1/+1
put_tty_driver() is an alias for tty_driver_kref_put(). There is no need for two exported identical functions, therefore switch all users of old put_tty_driver() to new tty_driver_kref_put() and remove the former for good. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Scott Branden <scott.branden@broadcom.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: David Lin <dtwlin@gmail.com> Cc: Johan Hovold <johan@kernel.org> Cc: Alex Elder <elder@kernel.org> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: David Sterba <dsterba@suse.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: Oliver Neukum <oneukum@suse.com> Cc: Felipe Balbi <balbi@kernel.org> Cc: Mathias Nyman <mathias.nyman@intel.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Acked-by: Alex Elder <elder@linaro.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: David Sterba <dsterba@suse.com> Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210723074317.32690-8-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-27tty: stop using alloc_tty_driverJiri Slaby1-3/+3
alloc_tty_driver was deprecated by tty_alloc_driver in commit 7f0bc6a68ed9 (TTY: pass flags to alloc_tty_driver) in 2012. I never got into eliminating alloc_tty_driver until now. So we still have two functions for allocating drivers which might be confusing. So get rid of alloc_tty_driver uses to eliminate it for good in the next patch. Note we need to switch return value checking as tty_alloc_driver uses ERR_PTR. And flags are now a parameter of tty_alloc_driver. Cc: Richard Henderson <rth@twiddle.net>(odd fixer:ALPHA PORT) Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Helge Deller <deller@gmx.de> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: David Sterba <dsterba@suse.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Oliver Neukum <oneukum@suse.com> Cc: Felipe Balbi <balbi@kernel.org> Cc: Johan Hovold <johan@kernel.org> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: David Sterba <dsterba@suse.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210723074317.32690-5-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-26alpha: fix spelling mistakesgushengxian5-6/+6
Fix some spelling mistakes in comments: delarations ==> declarations softare ==> software suffiently ==> sufficiently requred ==> required unaliged ==> unaligned Signed-off-by: gushengxian <gushengxian@yulong.com> Signed-off-by: Matt Turner <mattst88@gmail.com>
2021-07-26alpha: Remove space between * and parameter namegushengxian1-1/+1
'struct pcb_struct * pcb_va' should be 'struct pcb_struct *pcb_va'. Signed-off-by: gushengxian <gushengxian@yulong.com> Signed-off-by: Matt Turner <mattst88@gmail.com>
2021-07-26alpha: fp_emul: avoid init/cleanup_module namesArnd Bergmann1-2/+4
This is one of the last modules using the old calling conventions for module init/exit functions. Change it over to the style used everywhere else. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Matt Turner <mattst88@gmail.com>
2021-07-26alpha: Add syscall_get_return_value()He Zhe1-0/+6
audit now requires syscall_get_return_value instead of regs_return_value to retrieve syscall return code . Other architectures that support audit have already define this function. Signed-off-by: He Zhe <zhe.he@windriver.com> Signed-off-by: Matt Turner <mattst88@gmail.com>
2021-07-26alpha: fix typos in a commenttangchunyou1-1/+1
"kerne" -> "kernel" Signed-off-by: tangchunyou <tangchunyou@yulong.com> Signed-off-by: Matt Turner <mattst88@gmail.com>