3:53 a.m.
Hi Krzysztof,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 009c9aa5be652675a06d5211e1640e02bbb1c33d
commit: 4a2d5f663dab6614772d8e28ca190b127ba46d9d i2c: Enable compile testing for more
drivers
date: 1 year, 5 months ago
config: parisc-randconfig-r023-20210615 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
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
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4a2d5f663dab6614772d8e28ca190b127ba46d9d
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc
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 >>):
In file included from arch/parisc/include/asm/io.h:6,
from include/linux/io.h:13,
from drivers/i2c/busses/i2c-mlxcpld.c:37:
include/asm-generic/pgtable.h: In function 'pte_clear_not_present_full':
arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not
used [-Wunused-but-set-variable]
96 | pte_t old_pte; \
| ^~~~~~~
arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro
'set_pte_at'
322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0))
| ^~~~~~~~~~
include/asm-generic/pgtable.h:201:2: note: in expansion of macro 'pte_clear'
201 | pte_clear(mm, address, ptep);
| ^~~~~~~~~
include/asm-generic/pgtable.h: In function '__ptep_modify_prot_commit':
arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not
used [-Wunused-but-set-variable]
96 | pte_t old_pte; \
| ^~~~~~~
include/asm-generic/pgtable.h:640:2: note: in expansion of macro 'set_pte_at'
640 | set_pte_at(vma->vm_mm, addr, ptep, pte);
| ^~~~~~~~~~
drivers/i2c/busses/i2c-mlxcpld.c: In function 'mlxcpld_i2c_check_busy':
> drivers/i2c/busses/i2c-mlxcpld.c:271:10: warning: 'val'
is used uninitialized in this function [-Wuninitialized]
271 | if (val &
MLXCPLD_LPCI2C_TRANS_END)
| ^
vim +/val +271 drivers/i2c/busses/i2c-mlxcpld.c
6bec23bff91491 Vadim Pasternak 2016-11-20 263
6bec23bff91491 Vadim Pasternak 2016-11-20 264 /* Make sure the CPLD is ready to start
transmitting. */
6bec23bff91491 Vadim Pasternak 2016-11-20 265 static int mlxcpld_i2c_check_busy(struct
mlxcpld_i2c_priv *priv)
6bec23bff91491 Vadim Pasternak 2016-11-20 266 {
6bec23bff91491 Vadim Pasternak 2016-11-20 267 u8 val;
6bec23bff91491 Vadim Pasternak 2016-11-20 268
6bec23bff91491 Vadim Pasternak 2016-11-20 269 mlxcpld_i2c_read_comm(priv,
MLXCPLD_LPCI2C_STATUS_REG, &val, 1);
6bec23bff91491 Vadim Pasternak 2016-11-20 270
6bec23bff91491 Vadim Pasternak 2016-11-20 @271 if (val & MLXCPLD_LPCI2C_TRANS_END)
6bec23bff91491 Vadim Pasternak 2016-11-20 272 return 0;
6bec23bff91491 Vadim Pasternak 2016-11-20 273
6bec23bff91491 Vadim Pasternak 2016-11-20 274 return -EIO;
6bec23bff91491 Vadim Pasternak 2016-11-20 275 }
6bec23bff91491 Vadim Pasternak 2016-11-20 276
:::::: The code at line 271 was first introduced by commit
:::::: 6bec23bff914915822f2c34d0555902fb2b9be1f i2c: mlxcpld: add master driver for
mellanox systems
:::::: TO: Vadim Pasternak <vadimp(a)mellanox.com>
:::::: CC: Wolfram Sang <wsa(a)the-dreams.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org