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linux/net/tls
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Doron Roberts-Kedes 0a26cf3ff4 tls: Skip zerocopy path for ITER_KVEC 
The zerocopy path ultimately calls iov_iter_get_pages, which defines the
step function for ITER_KVECs as simply, return -EFAULT. Taking the
non-zerocopy path for ITER_KVECs avoids the unnecessary fallback.

See https://lore.kernel.org/lkml/20150401023311.GL29656@ZenIV.linux.org.uk/T/#u
for a discussion of why zerocopy for vmalloc data is not a good idea.

Discovered while testing NBD traffic encrypted with ktls.

Fixes: c46234ebb4 ("tls: RX path for ktls")
Signed-off-by: Doron Roberts-Kedes <doronrk@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26 14:11:34 -07:00
..
Kconfig net/tls: Add generic NIC offload infrastructure 2018-05-01 09:42:47 -04:00
Makefile net/tls: Add generic NIC offload infrastructure 2018-05-01 09:42:47 -04:00
tls_device_fallback.c tls: Add rx inline crypto offload 2018-07-16 00:13:11 -07:00
tls_device.c tls: Fix copy-paste error in tls_device_reencrypt 2018-07-20 12:12:45 -07:00
tls_main.c tls: Add rx inline crypto offload 2018-07-16 00:13:11 -07:00
tls_sw.c tls: Skip zerocopy path for ITER_KVEC 2018-07-26 14:11:34 -07:00