brcmfmac: avoid error output on header only packet

During SDIO layer flow control signalling firmware can issue
invalid packets. Prevent printing of parsing errors in such case.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Piotr Haber <phaber@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
index e224bcb900247a4557d2cd076c549cd4ca2a44ec..59c77aa3b9597894385a9b8c4c8d72aa5f6db84f 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
@@ -303,8 +303,8 @@ int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws, u8 *ifidx,
 
        /* Pop BDC header used to convey priority for buses that don't */
 
-       if (pktbuf->len < BDC_HEADER_LEN) {
-               brcmf_err("rx data too short (%d < %d)\n",
+       if (pktbuf->len <= BDC_HEADER_LEN) {
+               brcmf_dbg(INFO, "rx data too short (%d <= %d)\n",
                          pktbuf->len, BDC_HEADER_LEN);
                return -EBADE;
        }