diff options
| author | Petr Štetiar <ynezz@true.cz> | 2019-05-10 11:35:17 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-05-10 15:14:29 -0700 |
| commit | 2d2924af96881f3300239156d6ff316a1a3e48e5 (patch) | |
| tree | 1df8f756cf9047063d467ae56dd88080c5dd01eb /drivers/net/ethernet/freescale/fman | |
| parent | 1be91314532c4a2779fa17665b6d0368972b570b (diff) | |
net: ethernet: fix similar warning reported by kbuild test robot
This patch fixes following (similar) warning reported by kbuild test robot:
In function ‘memcpy’,
inlined from ‘smsc75xx_init_mac_address’ at drivers/net/usb/smsc75xx.c:778:3,
inlined from ‘smsc75xx_bind’ at drivers/net/usb/smsc75xx.c:1501:2:
./include/linux/string.h:355:9: warning: argument 2 null where non-null expected [-Wnonnull]
return __builtin_memcpy(p, q, size);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/usb/smsc75xx.c: In function ‘smsc75xx_bind’:
./include/linux/string.h:355:9: note: in a call to built-in function ‘__builtin_memcpy’
I've replaced the offending memcpy with ether_addr_copy, because I'm
100% sure, that of_get_mac_address can't return NULL as it returns valid
pointer or ERR_PTR encoded value, nothing else.
I'm hesitant to just change IS_ERR into IS_ERR_OR_NULL check, as this
would make the warning disappear also, but it would be confusing to
check for impossible return value just to make a compiler happy.
I'm now changing all occurencies of memcpy to ether_addr_copy after the
of_get_mac_address call, as it's very likely, that we're going to get
similar reports from kbuild test robot in the future.
Fixes: a51645f70f63 ("net: ethernet: support of_get_mac_address new ERR_PTR error")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/fman')
| -rw-r--r-- | drivers/net/ethernet/freescale/fman/mac.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c index 9cd2c28d17df..7ab8095db192 100644 --- a/drivers/net/ethernet/freescale/fman/mac.c +++ b/drivers/net/ethernet/freescale/fman/mac.c @@ -729,7 +729,7 @@ static int mac_probe(struct platform_device *_of_dev) err = -EINVAL; goto _return_of_get_parent; } - memcpy(mac_dev->addr, mac_addr, sizeof(mac_dev->addr)); + ether_addr_copy(mac_dev->addr, mac_addr); /* Get the port handles */ nph = of_count_phandle_with_args(mac_node, "fsl,fman-ports", NULL); |