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crypto: rockchip: utils: optimize alignment criteria

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There is no length alignment requirement for the last scatterlist.

Signed-off-by: Lin Jinhan <troy.lin@rock-chips.com>
Change-Id: I9625bce9379cef4c1a8507ba523f5f303d60c9e6
This commit is contained in:
Lin Jinhan
2023-06-15 16:44:35 +08:00
parent 43f141406e
commit 203965847c
1 changed files with 6 additions and 2 deletions
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8
drivers/crypto/rockchip/rk_crypto_utils.c
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@@ -72,14 +72,18 @@ static int check_scatter_align(struct scatterlist *sg_src,
{
int in, out, align;
/* The last piece has no need for length alignment */
in = IS_ALIGNED((u32)sg_src->offset, 4) &&
IS_ALIGNED((u32)sg_src->length, align_mask) &&
(!sg_next(sg_src) ||
IS_ALIGNED((u32)sg_src->length, align_mask)) &&
(sg_phys(sg_src) < SZ_4G);
if (!sg_dst)
return in;
/* The last piece has no need for length alignment */
out = IS_ALIGNED((u32)sg_dst->offset, 4) &&
IS_ALIGNED((u32)sg_dst->length, align_mask) &&
(!sg_next(sg_dst) ||
IS_ALIGNED((u32)sg_dst->length, align_mask)) &&
(sg_phys(sg_dst) < SZ_4G);
align = in && out;