[PATCH 2/3] ath10k: dump hex bytes with dev string prefix

[Michal Kazior]

This makes it easier to debug hex dumps on systems
with more than a single ath10k device.

Signed-off-by: Michal Kazior <michal.kazior at tieto.com>
---
 drivers/net/wireless/ath/ath10k/debug.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index f1e5916..9f8dddc 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1264,11 +1264,30 @@ void ath10k_dbg_dump(struct ath10k *ar,
 		     const char *msg, const char *prefix,
 		     const void *buf, size_t len)
 {
+	char linebuf[256];
+	unsigned int linebuflen;
+	const void *ptr;
+
 	if (ath10k_debug_mask & mask) {
 		if (msg)
 			ath10k_dbg(ar, mask, "%s\n", msg);
 
-		print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
+		for (ptr = buf; (ptr - buf) < len; ptr += 16) {
+			linebuflen = 0;
+			if (prefix)
+				linebuflen += scnprintf(linebuf + linebuflen,
+							sizeof(linebuf) -
+							linebuflen,
+							"%s", prefix);
+			linebuflen += scnprintf(linebuf + linebuflen,
+						sizeof(linebuf) - linebuflen,
+						"%08x: ",
+						(unsigned int)(ptr - buf));
+			hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
+					   linebuf + linebuflen,
+					   sizeof(linebuf) - linebuflen, true);
+			dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
+		}
 	}
 
 	/* tracing code doesn't like null strings :/ */
-- 
1.8.5.3