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authorGilad Ben-Yossef <gilad@benyossef.com>2017-04-25 11:25:40 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-05-18 08:19:48 +0300
commit981a2e3e45c554611316b6eb28d00204586637b3 (patch)
tree310e15245f40b98612e41bdbafce578ea9d7d1fc /crypto
parent9933e113c2e87a9f46a40fde8dafbf801dca1ab9 (diff)
downloadlinux-981a2e3e45c554611316b6eb28d00204586637b3.tar.xz
crypto: tcrypt - don't disable irqs and wait
The tcrypt AEAD cycles speed tests disables irqs during the test, which is broken at the very least since commit '1425d2d17f7309c6 ("crypto: tcrypt - Fix AEAD speed tests")' adds a wait for completion as part of the test and probably since switching to the new AEAD API. While the result of taking a cycle count diff may not mean much on SMP systems if the task migrates, it's good enough for tcrypt being the quick & dirty dev tool it is. It's also what all the other (i.e. hash) cycle speed tests do. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Reported-by: Ofir Drang <ofir.drang@arm.com> Reviewed-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/tcrypt.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 9a11f3c2bf98..0dd6a432d6ca 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -138,8 +138,6 @@ static int test_aead_cycles(struct aead_request *req, int enc, int blen)
int ret = 0;
int i;
- local_irq_disable();
-
/* Warm-up run. */
for (i = 0; i < 4; i++) {
if (enc)
@@ -169,8 +167,6 @@ static int test_aead_cycles(struct aead_request *req, int enc, int blen)
}
out:
- local_irq_enable();
-
if (ret == 0)
printk("1 operation in %lu cycles (%d bytes)\n",
(cycles + 4) / 8, blen);