Changes in testclearbit.S

dda5f312 - locking/atomic: arm: fix sync ops

Mon, 05 Jun 2023 07:00:58 +0000

locking/atomic: arm: fix sync opsThe sync_*() ops on arch/arm are defined in terms of the regular bitopswith no special handling. This is not correct, as UP kernels elidebarriers for the fully-ordered operations, and so the required orderingis lost when such UP kernels are run under a hypervsior on an SMPsystem.Fix this by defining sync ops with the required barriers.Note: On 32-bit arm, the sync_*() ops are currently only used by Xen,which requires ARMv7, but the semantics can be implemented for ARMv6+.Fixes: e54d2f61528165bb ("xen/arm: sync_bitops")Signed-off-by: Mark Rutland Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Kees Cook Link: https://lore.kernel.org/r/20230605070124.3741859-2-mark.rutland@arm.com List of files: /linux-6.15/arch/arm/lib/testclearbit.S

d2912cb1 - treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

Tue, 04 Jun 2019 08:11:33 +0000

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation #extracted by the scancode license scanner the SPDX license identifier GPL-2.0-onlyhas been chosen to replace the boilerplate/reference in 4122 file(s).Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.orgLink: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.deSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/arch/arm/lib/testclearbit.S

c36ef4b1 - ARM: 7171/1: unwind: add unwind directives to bitops assembly macros

Wed, 23 Nov 2011 10:28:25 +0000

ARM: 7171/1: unwind: add unwind directives to bitops assembly macrosThe bitops functions (e.g. _test_and_set_bit) on ARM do not have unwindannotations and therefore the kernel cannot backtrace out of them on afatal error (for example, NULL pointer dereference).This patch annotates the bitops assembly macros with UNWIND annotationsso that we can produce a meaningful backtrace on error. Callers of themacros are modified to pass their function name as a macro parameter,enforcing that the macros are used as standalone function implementations.Acked-by: Dave Martin Signed-off-by: Will Deacon Signed-off-by: Russell King List of files: /linux-6.15/arch/arm/lib/testclearbit.S

6323f0cc - ARM: bitops: switch set/clear/change bitops to use ldrex/strex

Sun, 16 Jan 2011 18:02:17 +0000

ARM: bitops: switch set/clear/change bitops to use ldrex/strexSwitch the set/clear/change bitops to use the word-based exclusiveoperations, which are only present in a wider range of ARM architecturesthan the byte-based exclusive operations.Tested record:- Nicolas Pitre: ext3,rw,le- Sourav Poddar: nfs,le- Will Deacon: ext3,rw,le- Tony Lindgren: ext3+nfs,leReviewed-by: Nicolas Pitre Tested-by: Sourav Poddar Tested-by: Will Deacon Tested-by: Tony Lindgren Signed-off-by: Russell King List of files: /linux-6.15/arch/arm/lib/testclearbit.S

93ed3970 - [ARM] 5227/1: Add the ENDPROC declarations to the .S files

Thu, 28 Aug 2008 10:22:32 +0000

[ARM] 5227/1: Add the ENDPROC declarations to the .S filesThis declaration specifies the "function" type and size for variousassembly functions, mainly needed for generating the correct branchinstructions in Thumb-2.Signed-off-by: Catalin Marinas Signed-off-by: Russell King List of files: /linux-6.15/arch/arm/lib/testclearbit.S

684f970e - [PATCH] ARM: bitops

Sun, 17 Apr 2005 14:51:02 +0000

[PATCH] ARM: bitopsConvert ARM bitop assembly to a macro. All bitops follow the sameformat, so it's silly duplicating the code when only one or twoinstructions are different.Signed-off-by: Russell King List of files: /linux-6.15/arch/arm/lib/testclearbit.S

1da177e4 - Linux-2.6.12-rc2

Sat, 16 Apr 2005 22:20:36 +0000

Linux-2.6.12-rc2Initial git repository build. I'm not bothering with the full history,even though we have it. We can create a separate "historical" gitarchive of that later if we want to, and in the meantime it's about3.2GB when imported into git - space that would just make the earlygit days unnecessarily complicated, when we don't have a lot of goodinfrastructure for it.Let it rip! List of files: /linux-6.15/arch/arm/lib/testclearbit.S