crypto: mediatek - fix incorrect data transfer result

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This patch fixes mtk_aes_xmit() data transfer bug.

The original function uses the same loop and ring->pos
to handle both command and result descriptors. But this
produces incomplete results when src.sg_len != dst.sg_len.

To solve the problem, we splits the descriptors into different
loops and uses cmd_pos and res_pos to record them respectively.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Ryder Lee 2017-01-20 13:41:09 +08:00 • committed by Herbert Xu

parent a873996238

commit 4432861fb9

3 changed files with 47 additions and 32 deletions

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44

drivers/crypto/mediatek/mtk-aes.c

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6

drivers/crypto/mediatek/mtk-platform.h

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29

drivers/crypto/mediatek/mtk-sha.c

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