Messages in this thread | | | Date | Sat, 27 Nov 2021 22:08:05 +0800 | From | kernel test robot <> | Subject | [norov:bitmap-20211125 9/11] drivers/irqchip/irq-gic.c:433:46: warning: comparison of constant '1' with boolean expression is always false |
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tree: https://github.com/norov/linux bitmap-20211125 head: e3a9cfe4830141c88aa5d8a93eae3512b2ae2882 commit: 9a237acabf8c32b395723ad4a1642201573e6ed1 [9/11] lib/cpumask: introduce num_possible_cpus_{eq,gt,le} config: arm-defconfig (https://download.01.org/0day-ci/archive/20211127/202111272225.wq15DtQK-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 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://github.com/norov/linux/commit/9a237acabf8c32b395723ad4a1642201573e6ed1 git remote add norov https://github.com/norov/linux git fetch --no-tags norov bitmap-20211125 git checkout 9a237acabf8c32b395723ad4a1642201573e6ed1 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash drivers/irqchip/
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/irqchip/irq-gic.c: In function 'gic_get_cpumask': >> drivers/irqchip/irq-gic.c:433:46: warning: comparison of constant '1' with boolean expression is always false [-Wbool-compare] 433 | if (!mask && num_possible_cpus_gt(1) > 1) | ^
vim +/1 +433 drivers/irqchip/irq-gic.c
419 420 static u8 gic_get_cpumask(struct gic_chip_data *gic) 421 { 422 void __iomem *base = gic_data_dist_base(gic); 423 u32 mask, i; 424 425 for (i = mask = 0; i < 32; i += 4) { 426 mask = readl_relaxed(base + GIC_DIST_TARGET + i); 427 mask |= mask >> 16; 428 mask |= mask >> 8; 429 if (mask) 430 break; 431 } 432 > 433 if (!mask && num_possible_cpus_gt(1) > 1) 434 pr_crit("GIC CPU mask not found - kernel will fail to boot.\n"); 435 436 return mask; 437 } 438
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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