diff mbox series

[13/23] wilc1000: sanitize config packet sequence number management a bit

Message ID 20211218235404.3963475-14-davidm@egauge.net (mailing list archive)
State Superseded
Delegated to: Kalle Valo
Headers show
Series wilc1000: rework tx path to use sk_buffs throughout | expand

Commit Message

David Mosberger-Tang Dec. 18, 2021, 11:54 p.m. UTC 
Always keep the config packet sequence number in the valid range from
0..255.

Signed-off-by: David Mosberger-Tang <davidm@egauge.net>
---
 drivers/net/wireless/microchip/wilc1000/wlan.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.c b/drivers/net/wireless/microchip/wilc1000/wlan.c
index 8cd2ede8d2775..6484e4ab8e159 100644
--- a/drivers/net/wireless/microchip/wilc1000/wlan.c
+++ b/drivers/net/wireless/microchip/wilc1000/wlan.c
@@ -1275,10 +1275,9 @@  static int wilc_wlan_cfg_commit(struct wilc_vif *vif, int type,
 
 	hdr = &cfg->hdr;
 	hdr->cmd_type = (type == WILC_CFG_SET) ? 'W' : 'Q';
-	hdr->seq_no = wilc->cfg_seq_no % 256;
+	hdr->seq_no = wilc->cfg_seq_no;
 	hdr->total_len = cpu_to_le16(t_len);
 	hdr->driver_handler = cpu_to_le32(drv_handler);
-	wilc->cfg_seq_no = cfg->hdr.seq_no;
 
 	if (!wilc_wlan_txq_add_cfg_pkt(vif, (u8 *)&cfg->hdr, t_len))
 		return -1;
@@ -1333,7 +1332,7 @@  static int wilc_wlan_cfg_apply_wid(struct wilc_vif *vif, int start, u16 wid,
 	}
 
 	wilc->cfg_frame_offset = 0;
-	wilc->cfg_seq_no += 1;
+	wilc->cfg_seq_no = (wilc->cfg_seq_no + 1) % 256;
 	mutex_unlock(&wilc->cfg_cmd_lock);
 
 	return ret_size;