diff mbox series

[v2,net,2/3] ionic: clear up notifyq alloc commentary

Message ID 20230202215537.69756-3-shannon.nelson@amd.com (mailing list archive)
State Accepted
Commit 1fffb0254178de1d4d9e67f467a3460d10680b10
Delegated to: Netdev Maintainers
Headers show
Series ionic: code maintenance | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 4 maintainers not CCed: mohamed@pensando.io edumazet@google.com pabeni@redhat.com brett.creeley@amd.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 20 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Nelson, Shannon Feb. 2, 2023, 9:55 p.m. UTC 
Make sure the q+cq alloc for NotifyQ is clearly documented
and don't bother with unnecessary local variables.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 5e2dfa79f0e4..e51d8be7911c 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -573,13 +573,15 @@  static int ionic_qcq_alloc(struct ionic_lif *lif, unsigned int type,
 	}
 
 	if (flags & IONIC_QCQ_F_NOTIFYQ) {
-		int q_size, cq_size;
+		int q_size;
 
-		/* q & cq need to be contiguous in case of notifyq */
+		/* q & cq need to be contiguous in NotifyQ, so alloc it all in q
+		 * and don't alloc qc.  We leave new->qc_size and new->qc_base
+		 * as 0 to be sure we don't try to free it later.
+		 */
 		q_size = ALIGN(num_descs * desc_size, PAGE_SIZE);
-		cq_size = ALIGN(num_descs * cq_desc_size, PAGE_SIZE);
-
-		new->q_size = PAGE_SIZE + q_size + cq_size;
+		new->q_size = PAGE_SIZE + q_size +
+			      ALIGN(num_descs * cq_desc_size, PAGE_SIZE);
 		new->q_base = dma_alloc_coherent(dev, new->q_size,
 						 &new->q_base_pa, GFP_KERNEL);
 		if (!new->q_base) {