drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.o: warning: objtool: xgbe_phy_sfp_eeprom_info()+0xc: return with modified stack frame

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0a07b238e5f488b459b6113a62e06b6aab017f71
commit: 6974f0c4555e285ab217cee58b6e874f776ff409 include/linux/string.h: add the option of fortified string.h functions
date:   2 weeks ago
config: x86_64-randconfig-a0-07290908 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        git checkout 6974f0c4555e285ab217cee58b6e874f776ff409
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.o: warning: objtool: xgbe_phy_sfp_eeprom_info()+0xc: return with modified stack frame

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Attachment: .config.gz
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