Messages in this thread | | | Date | Thu, 9 May 2019 10:14:36 +0800 | From | kbuild test robot <> | Subject | drivers/net/ethernet/micrel/ks8851.c:429:3: note: in expansion of macro 'memcpy' |
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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 <lkp@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 <lukas@wunner.de> :::::: CC: David S. Miller <davem@davemloft.net>
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