[PATCH v2 1/4] arm64/sve: Remove bitrotted comment about syscall behaviour
flat view
STALE972d
LANDED: 1 (1M)
From: Mark Brown <broonie@kernel.org>
Date: 2024-01-24 18:12:47
Also in:
linux-doc, lkml
Subsystem:
arm64 port (aarch64 architecture), documentation, the rest · Maintainers:
Catalin Marinas, Will Deacon, Jonathan Corbet, Linus Torvalds
Revision v2 of 2 in this series; 1 review trailer; landed in mainline as b4725d3e4603 on 2024-02-21.
Revisions (2)
- v1 [diff vs current]
- v2 current
When we documented that we always clear state not shared with FPSIMD we didn't catch all of the places that mentioned that state might not be cleared, remove a lingering reference. Reported-by: Edmund Grimley-Evans <redacted> Reviewed-by: Dave Martin <Dave.Martin@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> --- Documentation/arch/arm64/sve.rst | 5 ----- 1 file changed, 5 deletions(-)
diff --git a/Documentation/arch/arm64/sve.rst b/Documentation/arch/arm64/sve.rst
index 0d9a426e9f85..b45a2da19bf1 100644
--- a/Documentation/arch/arm64/sve.rst
+++ b/Documentation/arch/arm64/sve.rst@@ -117,11 +117,6 @@ the SVE instruction set architecture. * The SVE registers are not used to pass arguments to or receive results from any syscall. -* In practice the affected registers/bits will be preserved or will be replaced - with zeros on return from a syscall, but userspace should not make - assumptions about this. The kernel behaviour may vary on a case-by-case - basis. - * All other SVE state of a thread, including the currently configured vector length, the state of the PR_SVE_VL_INHERIT flag, and the deferred vector length (if any), is preserved across all syscalls, subject to the specific
--
2.30.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel