brcm80211: util: move brcmu_pkttotlen() function to brcmfmac

The functions brcmu_pkttotlen() is only used in brcmfmac driver
so it has been moved there. It also does not use the sk_buff
next pointer anymore but walks a skb queue to determine the total
length.
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: NAlwin Beukers <alwin@broadcom.com>
Signed-off-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c

@@ -1107,6 +1107,18 @@ static uint brcmf_sdbrcm_glom_from_buf(struct brcmf_bus *bus, uint len)
 	return ret;
 }
 
+/* return total length of buffer chain */
+static uint brcmf_sdbrcm_glom_len(struct brcmf_bus *bus)
+{
+	struct sk_buff *p;
+	uint total;
+
+	total = 0;
+	skb_queue_walk(&bus->glom, p)
+		total += p->len;
+	return total;
+}
+
 static u8 brcmf_sdbrcm_rxglom(struct brcmf_bus *bus, u8 rxseq)
 {
 	u16 dlen, totlen;
@@ -1218,7 +1230,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_bus *bus, u8 rxseq)
 		}
 
 		pfirst = skb_peek(&bus->glom);
-		dlen = (u16) brcmu_pkttotlen(pfirst);
+		dlen = (u16) brcmf_sdbrcm_glom_len(bus);
 
 		/* Do an SDIO read for the superframe.  Configurable iovar to
 		 * read directly into the chained packet, or allocate a large

drivers/net/wireless/brcm80211/brcmutil/utils.c

@@ -66,19 +66,6 @@ void brcmu_pkt_buf_free_skb(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(brcmu_pkt_buf_free_skb);
 
-
-/* return total length of buffer chain */
-uint brcmu_pkttotlen(struct sk_buff *p)
-{
-	uint total;
-
-	total = 0;
-	for (; p; p = p->next)
-		total += p->len;
-	return total;
-}
-EXPORT_SYMBOL(brcmu_pkttotlen);
-
 /*
  * osl multiple-precedence packet queue
  * hi_prec is always >= the number of the highest non-empty precedence

drivers/net/wireless/brcm80211/include/brcmu_utils.h

@@ -170,9 +170,6 @@ extern void brcmu_pktq_flush(struct pktq *pq, bool dir,
 		bool (*fn)(struct sk_buff *, void *), void *arg);
 
 /* externs */
-/* packet */
-extern uint brcmu_pkttotlen(struct sk_buff *p);
-
 /* ip address */
 struct ipv4_addr;