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| author | Petr Štetiar <ynezz@true.cz> | 2019-05-10 12:35:18 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-05-11 01:14:29 +0300 |
| commit | 1b9705d9713b67996608763e2317673d8378b03c (patch) | |
| tree | 2b2fa498721cf6fbe217e1bd99cf40b63378394f /drivers/net/wireless | |
| parent | 2d2924af96881f3300239156d6ff316a1a3e48e5 (diff) | |
| download | linux-1b9705d9713b67996608763e2317673d8378b03c.tar.xz | |
net: wireless: mt76: 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: d31a36b5f407 ("net: wireless: 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/wireless')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/eeprom.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/eeprom.c b/drivers/net/wireless/mediatek/mt76/eeprom.c index 04964937a3af..b7a49ae6b327 100644 --- a/drivers/net/wireless/mediatek/mt76/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/eeprom.c @@ -95,7 +95,7 @@ mt76_eeprom_override(struct mt76_dev *dev) mac = of_get_mac_address(np); if (!IS_ERR(mac)) - memcpy(dev->macaddr, mac, ETH_ALEN); + ether_addr_copy(dev->macaddr, mac); #endif if (!is_valid_ether_addr(dev->macaddr)) { |