1:27 p.m.
Hi Dan,
I love your patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
url:
https://github.com/0day-ci/linux/commits/Dan-Murphy/RGMII-Internal-delay-...
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
cb8e59cc87201af93dfbb6c3dccc8fcad72a09c2
config: x86_64-allyesconfig (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project
487ca07fcc75d52755c9fe2ee05bcb3b6eeeec44)
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
# 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(a)intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
> drivers/net/phy/dp83822.c:284:7: warning: variable
'rgmii_delay' is used uninitialized whenever 'if' condition is true
[-Wsometimes-uninitialized]
if (rx_int_delay <= 0)
^~~~~~~~~~~~~~~~~
drivers/net/phy/dp83822.c:296:7: note: uninitialized use occurs here
if (rgmii_delay) {
^~~~~~~~~~~
drivers/net/phy/dp83822.c:284:3: note: remove the 'if' if its condition is always
false
if (rx_int_delay <= 0)
^~~~~~~~~~~~~~~~~~~~~~
drivers/net/phy/dp83822.c:276:17: note: initialize the variable 'rgmii_delay' to
silence this warning
int rgmii_delay;
^
= 0
1 warning generated.
vim +284 drivers/net/phy/dp83822.c
272
273 static int dp83822_config_init(struct phy_device *phydev)
274 {
275 struct device *dev = &phydev->mdio.dev;
276 int rgmii_delay;
277 s32 rx_int_delay;
278 s32 tx_int_delay;
279 int err = 0;
280
281 if (phy_interface_is_rgmii(phydev)) {
282 rx_int_delay = phy_get_internal_delay(phydev, dev, NULL, 0,
283 true);
284 if (rx_int_delay <= 0)
285 rx_int_delay = 0;
286 else
287 rgmii_delay = DP83822_RX_CLK_SHIFT;
288
289 tx_int_delay = phy_get_internal_delay(phydev, dev, NULL, 0,
290 false);
291 if (tx_int_delay <= 0)
292 tx_int_delay = 0;
293 else
294 rgmii_delay |= DP83822_TX_CLK_SHIFT;
295
296 if (rgmii_delay) {
297 err = phy_set_bits_mmd(phydev, DP83822_DEVADDR,
298 MII_DP83822_RCSR, rgmii_delay);
299 if (err)
300 return err;
301 }
302 }
303
304 return dp8382x_disable_wol(phydev);
305 }
306
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org