diff options
Diffstat (limited to 'target/linux/ipq40xx/patches-5.10/0010-v5.6-crypto-qce-save-a-sg-table-slot-for-result-buf.patch')
| -rw-r--r-- | target/linux/ipq40xx/patches-5.10/0010-v5.6-crypto-qce-save-a-sg-table-slot-for-result-buf.patch | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/target/linux/ipq40xx/patches-5.10/0010-v5.6-crypto-qce-save-a-sg-table-slot-for-result-buf.patch b/target/linux/ipq40xx/patches-5.10/0010-v5.6-crypto-qce-save-a-sg-table-slot-for-result-buf.patch deleted file mode 100644 index 2385d483f2..0000000000 --- a/target/linux/ipq40xx/patches-5.10/0010-v5.6-crypto-qce-save-a-sg-table-slot-for-result-buf.patch +++ /dev/null @@ -1,85 +0,0 @@ -From 3ee50c896d712dc2fc8f34c2cd1918d035e74045 Mon Sep 17 00:00:00 2001 -From: Eneas U de Queiroz <cotequeiroz@gmail.com> -Date: Fri, 20 Dec 2019 16:02:15 -0300 -Subject: [PATCH 04/11] crypto: qce - save a sg table slot for result buf - -When ctr-aes-qce is used for gcm-mode, an extra sg entry for the -authentication tag is present, causing trouble when the qce driver -prepares the dst-results sg table for dma. - -It computes the number of entries needed with sg_nents_for_len, leaving -out the tag entry. Then it creates a sg table with that number plus -one, used to store a result buffer. - -When copying the sg table, there's no limit to the number of entries -copied, so the extra slot is filled with the authentication tag sg. -When the driver tries to add the result sg, the list is full, and it -returns EINVAL. - -By limiting the number of sg entries copied to the dest table, the slot -for the result buffer is guaranteed to be unused. - -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 | 6 ++++-- - drivers/crypto/qce/dma.h | 3 ++- - drivers/crypto/qce/skcipher.c | 4 ++-- - 3 files changed, 8 insertions(+), 5 deletions(-) - ---- a/drivers/crypto/qce/dma.c -+++ b/drivers/crypto/qce/dma.c -@@ -47,7 +47,8 @@ void qce_dma_release(struct qce_dma_data - } - - struct scatterlist * --qce_sgtable_add(struct sg_table *sgt, struct scatterlist *new_sgl) -+qce_sgtable_add(struct sg_table *sgt, struct scatterlist *new_sgl, -+ int max_ents) - { - struct scatterlist *sg = sgt->sgl, *sg_last = NULL; - -@@ -60,12 +61,13 @@ qce_sgtable_add(struct sg_table *sgt, st - if (!sg) - return ERR_PTR(-EINVAL); - -- while (new_sgl && sg) { -+ while (new_sgl && sg && max_ents) { - sg_set_page(sg, sg_page(new_sgl), new_sgl->length, - new_sgl->offset); - sg_last = sg; - sg = sg_next(sg); - new_sgl = sg_next(new_sgl); -+ max_ents--; - } - - return sg_last; ---- a/drivers/crypto/qce/dma.h -+++ b/drivers/crypto/qce/dma.h -@@ -42,6 +42,7 @@ int qce_dma_prep_sgs(struct qce_dma_data - void qce_dma_issue_pending(struct qce_dma_data *dma); - int qce_dma_terminate_all(struct qce_dma_data *dma); - struct scatterlist * --qce_sgtable_add(struct sg_table *sgt, struct scatterlist *sg_add); -+qce_sgtable_add(struct sg_table *sgt, struct scatterlist *sg_add, -+ int max_ents); - - #endif /* _DMA_H_ */ ---- a/drivers/crypto/qce/skcipher.c -+++ b/drivers/crypto/qce/skcipher.c -@@ -95,13 +95,13 @@ 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); -+ sg = qce_sgtable_add(&rctx->dst_tbl, req->dst, rctx->dst_nents - 1); - if (IS_ERR(sg)) { - ret = PTR_ERR(sg); - goto error_free; - } - -- sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg); -+ sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg, 1); - if (IS_ERR(sg)) { - ret = PTR_ERR(sg); - goto error_free; |