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authorJason A. Donenfeld <Jason@zx2c4.com>2018-06-16 16:36:04 +0200
committerJason A. Donenfeld <Jason@zx2c4.com>2018-06-17 19:36:37 +0200
commit469fe2e3ee962c95cad57f2a30ca3e20a34b5244 (patch)
treed943652a5eaa8d82fcbeecbe5a9f5732ec8fcc74
parent3f62999e8e27a7f315ef9346f34885d76334575a (diff)
simd: no need to restore fpu state when no preemption
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
-rw-r--r--src/crypto/simd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/crypto/simd.h b/src/crypto/simd.h
index 21e3c55..07936bf 100644
--- a/src/crypto/simd.h
+++ b/src/crypto/simd.h
@@ -47,10 +47,12 @@ static inline void simd_put(bool was_on)
static inline bool simd_relax(bool was_on)
{
+#ifdef CONFIG_PREEMPT
if (was_on && need_resched()) {
simd_put(true);
return simd_get();
}
+#endif
return was_on;
}