diff options
| author | Martin Kaiser <martin@kaiser.cx> | 2023-02-07 20:23:14 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-08 13:30:00 +0100 |
| commit | f141c234cbc87a3189cdad67c6d547b77967e715 (patch) | |
| tree | f76a85da0b7d4a11ea76f859711885f020be4797 | |
| parent | aec9b5bb8f653277a96818d580035f8325de443c (diff) | |
staging: r8188eu: simplify rtw_alloc_xmitframe
Make the rtw_alloc_xmitframe function a bit simpler.
The container_of() call never returns NULL. The if (pxframe) check is
false only if pfree_xmit_queue is empty. Handle this special case
explicitly and save one level of indentation.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20230207192319.294203-3-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/r8188eu/core/rtw_xmit.c | 40 |
1 files changed, 17 insertions, 23 deletions
diff --git a/drivers/staging/r8188eu/core/rtw_xmit.c b/drivers/staging/r8188eu/core/rtw_xmit.c index 4d6210d89533..6ec342b726f9 100644 --- a/drivers/staging/r8188eu/core/rtw_xmit.c +++ b/drivers/staging/r8188eu/core/rtw_xmit.c @@ -1256,38 +1256,32 @@ struct xmit_frame *rtw_alloc_xmitframe(struct xmit_priv *pxmitpriv)/* _queue *pf spin_lock_bh(&pfree_xmit_queue->lock); - if (list_empty(&pfree_xmit_queue->queue)) { - pxframe = NULL; - } else { - phead = get_list_head(pfree_xmit_queue); - - plist = phead->next; + if (list_empty(&pfree_xmit_queue->queue)) + goto out; - pxframe = container_of(plist, struct xmit_frame, list); - - list_del_init(&pxframe->list); - } + phead = get_list_head(pfree_xmit_queue); + plist = phead->next; + pxframe = container_of(plist, struct xmit_frame, list); + list_del_init(&pxframe->list); - if (pxframe) { /* default value setting */ - pxmitpriv->free_xmitframe_cnt--; + pxmitpriv->free_xmitframe_cnt--; - pxframe->buf_addr = NULL; - pxframe->pxmitbuf = NULL; + pxframe->buf_addr = NULL; + pxframe->pxmitbuf = NULL; - memset(&pxframe->attrib, 0, sizeof(struct pkt_attrib)); - /* pxframe->attrib.psta = NULL; */ + memset(&pxframe->attrib, 0, sizeof(struct pkt_attrib)); + /* pxframe->attrib.psta = NULL; */ - pxframe->frame_tag = DATA_FRAMETAG; + pxframe->frame_tag = DATA_FRAMETAG; - pxframe->pkt = NULL; - pxframe->pkt_offset = 1;/* default use pkt_offset to fill tx desc */ + pxframe->pkt = NULL; + pxframe->pkt_offset = 1;/* default use pkt_offset to fill tx desc */ - pxframe->agg_num = 1; - pxframe->ack_report = 0; - } + pxframe->agg_num = 1; + pxframe->ack_report = 0; +out: spin_unlock_bh(&pfree_xmit_queue->lock); - return pxframe; } |