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UPSTREAM: arm64/signal: Always allocate SVE signal frames on SME only systems

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Currently we only allocate space for SVE signal frames on systems that
support SVE, meaning that SME only systems do not allocate a signal frame
for streaming mode SVE state. Change the check so space is allocated if
either feature is supported.

Bug: 254441685
Fixes: 85ed24dad2 ("arm64/sme: Implement streaming SVE signal handling")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221223-arm64-fix-sme-only-v1-3-938d663f69e5@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit f26cd73721)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I74e735b2fba9e055acb1d43881eec814f7eba91d
This commit is contained in:
Mark Brown
2022-12-27 17:12:06 +00:00
committed by Lee Jones
parent d39a8ec550
commit 7d3d4eb2c3
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/kernel/signal.c
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@@ -726,7 +726,7 @@ static int setup_sigframe_layout(struct rt_sigframe_user_layout *user,
return err;
}
if (system_supports_sve()) {
if (system_supports_sve() || system_supports_sme()) {
unsigned int vq = 0;
if (add_all || test_thread_flag(TIF_SVE) ||