| Message ID | 20201022235531.65956-4-snelson@pensando.io |
|---|---|
| State | Accepted |
| Delegated to: | David Miller |
| Headers | show |
| Series | ionic: memory usage fixes | expand |
| Context | Check | Description |
|---|---|---|
| jkicinski/cover_letter | success | Link |
| jkicinski/fixes_present | success | Link |
| jkicinski/patch_count | success | Link |
| jkicinski/tree_selection | success | Clearly marked for net |
| jkicinski/subject_prefix | success | Link |
| jkicinski/source_inline | success | Was 0 now: 0 |
| jkicinski/verify_signedoff | success | Link |
| jkicinski/module_param | success | Was 0 now: 0 |
| jkicinski/build_32bit | success | Errors and warnings before: 0 this patch: 0 |
| jkicinski/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| jkicinski/verify_fixes | success | Link |
| jkicinski/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 33 lines checked |
| jkicinski/build_allmodconfig_warn | success | Errors and warnings before: 0 this patch: 0 |
| jkicinski/header_inline | success | Link |
| jkicinski/stable | success | Stable not CCed |
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c index 35acb4d66e31..b3d2250c77d0 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c @@ -400,22 +400,20 @@ static void ionic_rx_fill_cb(void *arg) void ionic_rx_empty(struct ionic_queue *q) { struct ionic_desc_info *desc_info; - struct ionic_rxq_desc *desc; - unsigned int i; - u16 idx; - - idx = q->tail_idx; - while (idx != q->head_idx) { - desc_info = &q->info[idx]; - desc = desc_info->desc; - desc->addr = 0; - desc->len = 0; + struct ionic_page_info *page_info; + unsigned int i, j; - for (i = 0; i < desc_info->npages; i++) - ionic_rx_page_free(q, &desc_info->pages[i]); + for (i = 0; i < q->num_descs; i++) { + desc_info = &q->info[i]; + for (j = 0; j < IONIC_RX_MAX_SG_ELEMS + 1; j++) { + page_info = &desc_info->pages[j]; + if (page_info->page) + ionic_rx_page_free(q, page_info); + } + desc_info->npages = 0; + desc_info->cb = NULL; desc_info->cb_arg = NULL; - idx = (idx + 1) & (q->num_descs - 1); } }
The sentinel descriptor entry was getting missed in the traverse of the ring from head to tail, so change to a loop of 0 to the end. Fixes: f1d2e894f1b7 ("ionic: use index not pointer for queue tracking") Signed-off-by: Shannon Nelson <snelson@pensando.io> --- .../net/ethernet/pensando/ionic/ionic_txrx.c | 24 +++++++++---------- 1 file changed, 11 insertions(+), 13 deletions(-)