tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 444fc5cde64330661bf59944c43844e7d4c2ccd8 commit: afe956c577b2d5a3d9834e4424587c1ebcf90c4c kbuild: Enable -Wtautological-compare date: 7 weeks ago config: mips-randconfig-r033-20200527 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 3393cc4cebf9969db94dc424b7a2b6195589c33b) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu git checkout afe956c577b2d5a3d9834e4424587c1ebcf90c4c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <l...@intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
>> arch/mips/bmips/setup.c:170:23: warning: array comparison always evaluates
>> to true [-Wtautological-compare]
else if (__dtb_start != __dtb_end)
^
1 warning generated.
vim +170 arch/mips/bmips/setup.c
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 155
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 156
void __init plat_mem_setup(void)
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 157
{
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 158
void *dtb;
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 159
const struct bmips_quirk *q;
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 160
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 161
set_io_port_base(0);
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 162
ioport_resource.start = 0;
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 163
ioport_resource.end = ~0;
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 164
dc7a12bdfccd94c arch/mips/bmips/setup.c Mauro Carvalho Chehab 2019-04-14 165
/* intended to somewhat resemble ARM; see Documentation/arm/booting.rst
*/
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 166
if (fw_arg0 == 0 && fw_arg1 == 0xffffffff)
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 167
dtb = phys_to_virt(fw_arg2);
e524c788bfc1d5e arch/mips/bmips/setup.c Yasha Cherikovsky 2018-09-25 168
else if (fw_passed_dtb) /* UHI interface or appended dtb */
15f37e1588920e0 arch/mips/bmips/setup.c Jonas Gorski 2016-06-20 169
dtb = (void *)fw_passed_dtb;
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 @170
else if (__dtb_start != __dtb_end)
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 171
dtb = (void *)__dtb_start;
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 172
else
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 173
panic("no dtb found");
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 174
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 175
__dt_setup_arch(dtb);
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 176
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 177
for (q = bmips_quirk_list; q->quirk_fn; q++) {
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 178
if (of_flat_dt_is_compatible(of_get_flat_dt_root(),
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 179
q->compatible)) {
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 180
q->quirk_fn();
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 181
}
4b049a6b275db68 arch/mips/bmips/setup.c Kevin Cernekee 2014-12-25 182
}
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 183
}
d666cd0246f78bd arch/mips/bcm3384/setup.c Kevin Cernekee 2014-10-20 184
:::::: The code at line 170 was first introduced by commit
:::::: 4b049a6b275db68c2c028937b89abd732dcdf536 MIPS: BMIPS: Add quirks for
several Broadcom platforms
:::::: TO: Kevin Cernekee <cerne...@gmail.com>
:::::: CC: Ralf Baechle <r...@linux-mips.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
