path: root/Documentation/arm64
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authorMark Brown <broonie@kernel.org>2021-12-10 18:40:59 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2021-12-14 18:33:44 +0000
commitaed34d9e52b80b4e7485119272c77c5553a21499 (patch)
tree875f784a9a0adb2da8fb791959454dd570fb0aa4 /Documentation/arm64
parentarm64/sve: Generalise vector length configuration prctl() for SME (diff)
arm64/sve: Minor clarification of ABI documentation
As suggested by Luis for the SME version of this explicitly say that the vector length should be extracted from the return value of a set vector length prctl() with a bitwise and rather than just any old and. Suggested-by: Luis Machado <Luis.Machado@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20211210184133.320748-4-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'Documentation/arm64')
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/arm64/sve.rst b/Documentation/arm64/sve.rst
index 03137154299e..9d9a4de5bc34 100644
--- a/Documentation/arm64/sve.rst
+++ b/Documentation/arm64/sve.rst
@@ -255,7 +255,7 @@ prctl(PR_SVE_GET_VL)
vector length change (which would only normally be the case between a
fork() or vfork() and the corresponding execve() in typical use).
- To extract the vector length from the result, and it with
+ To extract the vector length from the result, bitwise and it with
Return value: a nonnegative value on success, or a negative value on error: