tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ef75bd71c5d31dc17ae41ff8bec92630a3037d69 commit: a51645f70f6384ae3329551750f7f502cb8de5fc net: ethernet: support of_get_mac_address new ERR_PTR error date: 31 hours ago config: i386-randconfig-c0-05090856 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: git checkout a51645f70f6384ae3329551750f7f502cb8de5fc # save the attached .config to linux build tree make ARCH=i386
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <l...@intel.com>
All warnings (new ones prefixed by >>):
In file included from arch/x86/include/asm/string.h:3:0,
from include/linux/string.h:20,
from include/linux/bitmap.h:9,
from include/linux/cpumask.h:12,
from include/linux/interrupt.h:8,
from drivers/net/ethernet/micrel/ks8851.c:16:
drivers/net/ethernet/micrel/ks8851.c: In function 'ks8851_probe':
arch/x86/include/asm/string_32.h:182:25: warning: argument 2 null where
non-null expected [-Wnonnull]
#define memcpy(t, f, n) __builtin_memcpy(t, f, n)
^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/micrel/ks8851.c:429:3: note: in expansion of macro
>> 'memcpy'
memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
^~~~~~
arch/x86/include/asm/string_32.h:182:25: note: in a call to built-in
function '__builtin_memcpy'
#define memcpy(t, f, n) __builtin_memcpy(t, f, n)
^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/micrel/ks8851.c:429:3: note: in expansion of macro
>> 'memcpy'
memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
^~~~~~
--
In file included from arch/x86/include/asm/string.h:3:0,
from include/linux/string.h:20,
from include/linux/bitmap.h:9,
from include/linux/cpumask.h:12,
from include/linux/interrupt.h:8,
from drivers/net/ethernet/micrel/ks8851_mll.c:25:
drivers/net/ethernet/micrel/ks8851_mll.c: In function 'ks8851_probe':
arch/x86/include/asm/string_32.h:182:25: warning: argument 2 null where
non-null expected [-Wnonnull]
#define memcpy(t, f, n) __builtin_memcpy(t, f, n)
^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/micrel/ks8851_mll.c:1331:4: note: in expansion of macro
>> 'memcpy'
memcpy(ks->mac_addr, mac, ETH_ALEN);
^~~~~~
arch/x86/include/asm/string_32.h:182:25: note: in a call to built-in
function '__builtin_memcpy'
#define memcpy(t, f, n) __builtin_memcpy(t, f, n)
^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/micrel/ks8851_mll.c:1331:4: note: in expansion of macro
>> 'memcpy'
memcpy(ks->mac_addr, mac, ETH_ALEN);
^~~~~~
vim +/memcpy +429 drivers/net/ethernet/micrel/ks8851.c
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 411
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 412 /**
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 413 *
ks8851_init_mac - initialise the mac address
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 414 *
@ks: The device structure
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 415 *
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 416 *
Get or create the initial mac address for the device and then set that
566bd54b drivers/net/ethernet/micrel/ks8851.c Lukas Wunner 2017-12-18 417 *
into the station address register. A mac address supplied in the device
566bd54b drivers/net/ethernet/micrel/ks8851.c Lukas Wunner 2017-12-18 418 *
tree takes precedence. Otherwise, if there is an EEPROM present, then
7efd26d0 drivers/net/ethernet/micrel/ks8851.c Joe Perches 2012-07-12 419 *
we try that. If no valid mac address is found we use eth_random_addr()
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 420 *
to create a new one.
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 421 */
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 422
static void ks8851_init_mac(struct ks8851_net *ks)
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 423 {
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 424
struct net_device *dev = ks->netdev;
566bd54b drivers/net/ethernet/micrel/ks8851.c Lukas Wunner 2017-12-18 425
const u8 *mac_addr;
566bd54b drivers/net/ethernet/micrel/ks8851.c Lukas Wunner 2017-12-18 426
566bd54b drivers/net/ethernet/micrel/ks8851.c Lukas Wunner 2017-12-18 427
mac_addr = of_get_mac_address(ks->spidev->dev.of_node);
a51645f7 drivers/net/ethernet/micrel/ks8851.c Petr Štetiar 2019-05-06 428
if (!IS_ERR(mac_addr)) {
566bd54b drivers/net/ethernet/micrel/ks8851.c Lukas Wunner 2017-12-18 @429
memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
566bd54b drivers/net/ethernet/micrel/ks8851.c Lukas Wunner 2017-12-18 430
ks8851_write_mac_addr(dev);
566bd54b drivers/net/ethernet/micrel/ks8851.c Lukas Wunner 2017-12-18 431
return;
566bd54b drivers/net/ethernet/micrel/ks8851.c Lukas Wunner 2017-12-18 432
}
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 433
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 434
if (ks->rc_ccr & CCR_EEPROM) {
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 435
ks8851_read_mac_addr(dev);
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 436
if (is_valid_ether_addr(dev->dev_addr))
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 437
return;
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 438
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 439
netdev_err(ks->netdev, "invalid mac address read %pM\n",
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 440
dev->dev_addr);
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 441
}
a9a8de21 drivers/net/ethernet/micrel/ks8851.c Ben Dooks 2011-11-21 442
7ce5d222 drivers/net/ethernet/micrel/ks8851.c Danny Kukawka 2012-02-15 443
eth_hw_addr_random(dev);
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 444
ks8851_write_mac_addr(dev);
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 445 }
3ba81f3e drivers/net/ks8851.c Ben Dooks 2009-07-16 446
:::::: The code at line 429 was first introduced by commit
:::::: 566bd54b067d5242043ce0560906bf4a2e3de289 net: ks8851: Support
DT-provided MAC address
:::::: TO: Lukas Wunner <lu...@wunner.de>
:::::: CC: David S. Miller <da...@davemloft.net>
---
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