diff options
Diffstat (limited to 'target/linux/ipq40xx/patches-5.4/0014-v5.7-crypto-qce-use-cryptlen-when-adding-extra-sgl.patch')
| -rw-r--r-- | target/linux/ipq40xx/patches-5.4/0014-v5.7-crypto-qce-use-cryptlen-when-adding-extra-sgl.patch | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/target/linux/ipq40xx/patches-5.4/0014-v5.7-crypto-qce-use-cryptlen-when-adding-extra-sgl.patch b/target/linux/ipq40xx/patches-5.4/0014-v5.7-crypto-qce-use-cryptlen-when-adding-extra-sgl.patch deleted file mode 100644 index 160420b485..0000000000 --- a/target/linux/ipq40xx/patches-5.4/0014-v5.7-crypto-qce-use-cryptlen-when-adding-extra-sgl.patch +++ /dev/null @@ -1,89 +0,0 @@ -From d6364b8128439a8c0e381f80c38667de9f15eef8 Mon Sep 17 00:00:00 2001 -From: Eneas U de Queiroz <cotequeiroz@gmail.com> -Date: Fri, 7 Feb 2020 12:02:25 -0300 -Subject: [PATCH 09/11] crypto: qce - use cryptlen when adding extra sgl - -The qce crypto driver appends an extra entry to the dst sgl, to maintain -private state information. - -When the gcm driver sends requests to the ctr skcipher, it passes the -authentication tag after the actual crypto payload, but it must not be -touched. - -Commit 1336c2221bee ("crypto: qce - save a sg table slot for result -buf") limited the destination sgl to avoid overwriting the -authentication tag but it assumed the tag would be in a separate sgl -entry. - -This is not always the case, so it is better to limit the length of the -destination buffer to req->cryptlen before appending the result buf. - -Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com> -Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> ---- - drivers/crypto/qce/dma.c | 11 ++++++----- - drivers/crypto/qce/dma.h | 2 +- - drivers/crypto/qce/skcipher.c | 5 +++-- - 3 files changed, 10 insertions(+), 8 deletions(-) - ---- a/drivers/crypto/qce/dma.c -+++ b/drivers/crypto/qce/dma.c -@@ -48,9 +48,10 @@ void qce_dma_release(struct qce_dma_data - - struct scatterlist * - qce_sgtable_add(struct sg_table *sgt, struct scatterlist *new_sgl, -- int max_ents) -+ unsigned int max_len) - { - struct scatterlist *sg = sgt->sgl, *sg_last = NULL; -+ unsigned int new_len; - - while (sg) { - if (!sg_page(sg)) -@@ -61,13 +62,13 @@ qce_sgtable_add(struct sg_table *sgt, st - if (!sg) - return ERR_PTR(-EINVAL); - -- while (new_sgl && sg && max_ents) { -- sg_set_page(sg, sg_page(new_sgl), new_sgl->length, -- new_sgl->offset); -+ while (new_sgl && sg && max_len) { -+ new_len = new_sgl->length > max_len ? max_len : new_sgl->length; -+ sg_set_page(sg, sg_page(new_sgl), new_len, new_sgl->offset); - sg_last = sg; - sg = sg_next(sg); - new_sgl = sg_next(new_sgl); -- max_ents--; -+ max_len -= new_len; - } - - return sg_last; ---- a/drivers/crypto/qce/dma.h -+++ b/drivers/crypto/qce/dma.h -@@ -43,6 +43,6 @@ void qce_dma_issue_pending(struct qce_dm - int qce_dma_terminate_all(struct qce_dma_data *dma); - struct scatterlist * - qce_sgtable_add(struct sg_table *sgt, struct scatterlist *sg_add, -- int max_ents); -+ unsigned int max_len); - - #endif /* _DMA_H_ */ ---- a/drivers/crypto/qce/skcipher.c -+++ b/drivers/crypto/qce/skcipher.c -@@ -97,13 +97,14 @@ qce_skcipher_async_req_handle(struct cry - - sg_init_one(&rctx->result_sg, qce->dma.result_buf, QCE_RESULT_BUF_SZ); - -- sg = qce_sgtable_add(&rctx->dst_tbl, req->dst, rctx->dst_nents - 1); -+ sg = qce_sgtable_add(&rctx->dst_tbl, req->dst, req->cryptlen); - if (IS_ERR(sg)) { - ret = PTR_ERR(sg); - goto error_free; - } - -- sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg, 1); -+ sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg, -+ QCE_RESULT_BUF_SZ); - if (IS_ERR(sg)) { - ret = PTR_ERR(sg); - goto error_free; |