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SubjectRe: [PATCH v2 net-next] net: stmmac: Enable EEE HW LPI timer with auto SW/HW switching
Hi Voon,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]

url: https://github.com/0day-ci/linux/commits/Voon-Weifeng/net-stmmac-Enable-EEE-HW-LPI-timer-with-auto-SW-HW-switching/20201016-000231
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git d25e2e9388eda61b6e298585024ee3355f50c493
config: x86_64-randconfig-a012-20201015 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project e7b4feea8e1bf520b34ad8c116abab6677344b74)
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://github.com/0day-ci/linux/commit/b208a1e7f74a391d1d7c2950e35b97c59af55585
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Voon-Weifeng/net-stmmac-Enable-EEE-HW-LPI-timer-with-auto-SW-HW-switching/20201016-000231
git checkout b208a1e7f74a391d1d7c2950e35b97c59af55585
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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/stmmac_main.c:297:6: warning: no previous prototype for function 'stmmac_lpi_entry_timer_config' [-Wmissing-prototypes]
void stmmac_lpi_entry_timer_config(struct stmmac_priv *priv, bool en)
^
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:297:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void stmmac_lpi_entry_timer_config(struct stmmac_priv *priv, bool en)
^
static
1 warning generated.

vim +/stmmac_lpi_entry_timer_config +297 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

296
> 297 void stmmac_lpi_entry_timer_config(struct stmmac_priv *priv, bool en)
298 {
299 int tx_lpi_timer;
300
301 /* Clear/set the SW EEE timer flag based on LPI ET enablement */
302 priv->eee_sw_timer_en = en ? 0 : 1;
303 tx_lpi_timer = en ? priv->tx_lpi_timer : 0;
304 stmmac_set_eee_lpi_timer(priv, priv->hw, tx_lpi_timer);
305 }
306

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