[linux-stable-rc:linux-5.4.y 5545/5583] drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.o: warning: objtool: ipq806x_gmac_probe() falls through to next function phy_modes()

[linux-stable-rc:linux-5.4.y 5545/5583] drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.o: warning: objtool: ipq806x_gmac_probe() falls through to next function phy_modes()

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 1811 bytes --]

TO: Jonathan McDowell <noodles@earth.li>
CC: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>
CC: Sasha Levin <sashal@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y
head:   12a5ce113626ce8208aef76d4d2e9fc93ea48ddf
commit: aea1423a6334b6179f630879a8fe2149edac8bc5 [5545/5583] net: ethernet: stmmac: Enable interface clocks on probe for IPQ806x
config: x86_64-randconfig-a012-20210509 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 1312852040b3190a6cb7d7c1f61fe95a5e930d8d)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=aea1423a6334b6179f630879a8fe2149edac8bc5
        git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
        git fetch --no-tags linux-stable-rc linux-5.4.y
        git checkout aea1423a6334b6179f630879a8fe2149edac8bc5
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.o: warning: objtool: ipq806x_gmac_probe() falls through to next function phy_modes()

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 44002 bytes --]