Commit 92b27907 authored by Ben Hutchings's avatar Ben Hutchings Committed by Herbert Xu

crypto: camellia_aesni_avx - Fix CPU feature checks

We need to explicitly check the AVX and AES CPU features, as we can't
infer them from the related XSAVE feature flags.  For example, the
Core i3 2310M passes the XSAVE feature test but does not implement
AES-NI.
Reported-and-tested-by: default avatarStéphane Glondu <glondu@debian.org>
References: https://bugs.debian.org/800934
Fixes: ce4f5f9b ("x86/fpu, crypto x86/camellia_aesni_avx: Simplify...")
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
Cc: stable <stable@vger.kernel.org> # 4.2
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent a66d7f72
......@@ -554,6 +554,11 @@ static int __init camellia_aesni_init(void)
{
const char *feature_name;
if (!cpu_has_avx || !cpu_has_aes || !cpu_has_osxsave) {
pr_info("AVX or AES-NI instructions are not detected.\n");
return -ENODEV;
}
if (!cpu_has_xfeatures(XSTATE_SSE | XSTATE_YMM, &feature_name)) {
pr_info("CPU feature '%s' is not supported.\n", feature_name);
return -ENODEV;
......
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