crypto: hisilicon/debugfs - Resolve the problem of applying for redundant space in...

When dumping SQ, only the corresponding ID's SQE needs to be
dumped, and there is no need to apply for the entire SQE
memory. This is because excessive dump operations can lead to
memory resource waste.

Therefor apply for the space corresponding to sqe_id separately
to avoid space waste.

Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/hisilicon/debugfs.c b/drivers/crypto/hisilicon/debugfs.c
index e9fa423..8e7dfdc 100644 (file)
--- a/drivers/crypto/hisilicon/debugfs.c
+++ b/drivers/crypto/hisilicon/debugfs.c
@@ -311,7 +311,7 @@ static int q_dump_param_parse(struct hisi_qm *qm, char *s,
 static int qm_sq_dump(struct hisi_qm *qm, char *s, char *name)
 {
        u16 sq_depth = qm->qp_array->cq_depth;
-       void *sqe, *sqe_curr;
+       void *sqe;
        struct hisi_qp *qp;
        u32 qp_id, sqe_id;
        int ret;
@@ -320,17 +320,16 @@ static int qm_sq_dump(struct hisi_qm *qm, char *s, char *name)
        if (ret)
                return ret;
 
-       sqe = kzalloc(qm->sqe_size * sq_depth, GFP_KERNEL);
+       sqe = kzalloc(qm->sqe_size, GFP_KERNEL);
        if (!sqe)
                return -ENOMEM;
 
        qp = &qm->qp_array[qp_id];
-       memcpy(sqe, qp->sqe, qm->sqe_size * sq_depth);
-       sqe_curr = sqe + (u32)(sqe_id * qm->sqe_size);
-       memset(sqe_curr + qm->debug.sqe_mask_offset, QM_SQE_ADDR_MASK,
+       memcpy(sqe, qp->sqe + sqe_id * qm->sqe_size, qm->sqe_size);
+       memset(sqe + qm->debug.sqe_mask_offset, QM_SQE_ADDR_MASK,
               qm->debug.sqe_mask_len);
 
-       dump_show(qm, sqe_curr, qm->sqe_size, name);
+       dump_show(qm, sqe, qm->sqe_size, name);
 
        kfree(sqe);