Hi, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on arm-perf/for-next/perf] [also build test WARNING on linus/master v5.18-rc6] [cannot apply to joro-iommu/next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/intel-lab-lkp/linux/commits/yf-wang-mediatek-com/iommu-io-pgtable-arm-v7s-Add-a-quirk-to-allow-pgtable-PA-up-to-35bit/20220512-234603 base: https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-next/perf config: arm-qcom_defconfig (https://download.01.org/0day-ci/archive/20220513/[email protected]/config) compiler: arm-linux-gnueabi-gcc (GCC) 11.3.0 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://github.com/intel-lab-lkp/linux/commit/916a5fc41cbb8ddfe343193598f250d06b09e3fa git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review yf-wang-mediatek-com/iommu-io-pgtable-arm-v7s-Add-a-quirk-to-allow-pgtable-PA-up-to-35bit/20220512-234603 git checkout 916a5fc41cbb8ddfe343193598f250d06b09e3fa # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/iommu/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All warnings (new ones prefixed by >>): In file included from include/linux/ratelimit_types.h:5, from include/linux/ratelimit.h:5, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from include/linux/dma-mapping.h:7, from drivers/iommu/io-pgtable-arm-v7s.c:25: drivers/iommu/io-pgtable-arm-v7s.c: In function 'arm_v7s_alloc_pgtable': include/linux/bits.h:35:29: warning: left shift count >= width of type [-Wshift-count-overflow] 35 | (((~UL(0)) - (UL(1) << (l)) + 1) & \ | ^~ include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/iommu/io-pgtable-arm-v7s.c:154:46: note: in expansion of macro 'GENMASK' 154 | ((ttbr & ((u32)(~0U << 3))) | ((pa & GENMASK(34, 32)) >> 32)) | ^~~~~~~ drivers/iommu/io-pgtable-arm-v7s.c:886:25: note: in expansion of macro 'ARM_V7S_TTBR_35BIT_PA' 886 | ARM_V7S_TTBR_35BIT_PA(cfg->arm_v7s_cfg.ttbr, paddr); | ^~~~~~~~~~~~~~~~~~~~~ include/linux/bits.h:36:18: warning: right shift count is negative [-Wshift-count-negative] 36 | (~UL(0) >> (BITS_PER_LONG - 1 - (h)))) | ^~ include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~ drivers/iommu/io-pgtable-arm-v7s.c:154:46: note: in expansion of macro 'GENMASK' 154 | ((ttbr & ((u32)(~0U << 3))) | ((pa & GENMASK(34, 32)) >> 32)) | ^~~~~~~ drivers/iommu/io-pgtable-arm-v7s.c:886:25: note: in expansion of macro 'ARM_V7S_TTBR_35BIT_PA' 886 | ARM_V7S_TTBR_35BIT_PA(cfg->arm_v7s_cfg.ttbr, paddr); | ^~~~~~~~~~~~~~~~~~~~~ >> drivers/iommu/io-pgtable-arm-v7s.c:154:63: warning: right shift count >= >> width of type [-Wshift-count-overflow] 154 | ((ttbr & ((u32)(~0U << 3))) | ((pa & GENMASK(34, 32)) >> 32)) | ^~ drivers/iommu/io-pgtable-arm-v7s.c:886:25: note: in expansion of macro 'ARM_V7S_TTBR_35BIT_PA' 886 | ARM_V7S_TTBR_35BIT_PA(cfg->arm_v7s_cfg.ttbr, paddr); | ^~~~~~~~~~~~~~~~~~~~~ vim +154 drivers/iommu/io-pgtable-arm-v7s.c 145 146 #define ARM_V7S_TTBR_S BIT(1) 147 #define ARM_V7S_TTBR_NOS BIT(5) 148 #define ARM_V7S_TTBR_ORGN_ATTR(attr) (((attr) & 0x3) << 3) 149 #define ARM_V7S_TTBR_IRGN_ATTR(attr) \ 150 ((((attr) & 0x1) << 6) | (((attr) & 0x2) >> 1)) 151 152 /* Mediatek extend ttbr bits[2:0] for PA bits[34:32] */ 153 #define ARM_V7S_TTBR_35BIT_PA(ttbr, pa) \ > 154 ((ttbr & ((u32)(~0U << 3))) | ((pa & GENMASK(34, 32)) >> 32)) 155 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
