[PATCH -next] net: dsa: hellcreek: Use is_zero_ether_addr() instead of memcmp()

Using is_zero_ether_addr() instead of directly use
memcmp() to determine if the ethernet address is all
zeros.

Reported-by: Hulk Robot <redacted>
Signed-off-by: Zou Wei <redacted>
---
 drivers/net/dsa/hirschmann/hellcreek.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c
index 4d78219..9fdcc4b 100644
--- a/drivers/net/dsa/hirschmann/hellcreek.c
+++ b/drivers/net/dsa/hirschmann/hellcreek.c

@@ -927,7 +927,6 @@ static int hellcreek_fdb_dump(struct dsa_switch *ds, int port,
 
 	/* Read table */
 	for (i = 0; i < hellcreek->fdb_entries; ++i) {
-		unsigned char null_addr[ETH_ALEN] = { 0 };
 		struct hellcreek_fdb_entry entry = { 0 };
 
 		/* Read entry */

@@ -937,7 +936,7 @@ static int hellcreek_fdb_dump(struct dsa_switch *ds, int port,
 		hellcreek_write(hellcreek, 0x00, HR_FDBRDH);
 
 		/* Check valid */
-		if (!memcmp(entry.mac, null_addr, ETH_ALEN))
+		if (is_zero_ether_addr(entry.mac))
 			continue;
 
 		/* Check port mask */

-- 
2.6.2

On Mon Jun 07 2021, Zou Wei wrote:

Using is_zero_ether_addr() instead of directly use
memcmp() to determine if the ethernet address is all
zeros.

Reported-by: Hulk Robot <redacted>
Signed-off-by: Zou Wei <redacted>

Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Mon, 7 Jun 2021 10:57:09 +0800 you wrote:

Using is_zero_ether_addr() instead of directly use
memcmp() to determine if the ethernet address is all
zeros.

Reported-by: Hulk Robot <redacted>
Signed-off-by: Zou Wei <redacted>

[...]

Here is the summary with links:
  - [-next] net: dsa: hellcreek: Use is_zero_ether_addr() instead of memcmp()
    https://git.kernel.org/netdev/net-next/c/3f07ce8e5287

You are awesome, thank you!
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