Hi Damien, I love your patch! Yet something to improve: [auto build test ERROR on block/for-next] [also build test ERROR on v5.2-rc6 next-20190621] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Damien-Le-Moal/Fix-zone-revalidation-memory-allocation-failures/20190625-175053 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: sparc64-allyesconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): drivers/scsi/sd_zbc.c: In function 'sd_zbc_alloc_report_buffer': >> drivers/scsi/sd_zbc.c:141:8: error: implicit declaration of function '__vmalloc'; did you mean '__kmalloc'? [-Werror=implicit-function-declaration] buf = __vmalloc(bufsize, gfp_mask, PAGE_KERNEL); ^~~~~~~~~ __kmalloc >> drivers/scsi/sd_zbc.c:141:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion] buf = __vmalloc(bufsize, gfp_mask, PAGE_KERNEL); ^ cc1: some warnings being treated as errors vim +141 drivers/scsi/sd_zbc.c 110 111 /** 112 * Allocate a buffer for report zones reply. 113 * @disk: The target disk 114 * @nr_zones: Maximum number of zones to report 115 * @buflen: Size of the buffer allocated 116 * @gfp_mask: Memory allocation mask 117 * 118 */ 119 static void *sd_zbc_alloc_report_buffer(struct request_queue *q, 120 unsigned int nr_zones, size_t *buflen, 121 gfp_t gfp_mask) 122 { 123 size_t bufsize; 124 void *buf; 125 126 /* 127 * Report zone buffer size should be at most 64B times the number of 128 * zones requested plus the 64B reply header, but should be at least 129 * SECTOR_SIZE for ATA devices. 130 * Make sure that this size does not exceed the hardware capabilities. 131 * Furthermore, since the report zone command cannot be split, make 132 * sure that the allocated buffer can always be mapped by limiting the 133 * number of pages allocated to the HBA max segments limit. 134 */ 135 nr_zones = min(nr_zones, SD_ZBC_REPORT_MAX_ZONES); 136 bufsize = roundup((nr_zones + 1) * 64, 512); 137 bufsize = min_t(size_t, bufsize, 138 queue_max_hw_sectors(q) << SECTOR_SHIFT); 139 bufsize = min_t(size_t, bufsize, queue_max_segments(q) << PAGE_SHIFT); 140 > 141 buf = __vmalloc(bufsize, gfp_mask, PAGE_KERNEL); 142 if (buf) 143 *buflen = bufsize; 144 145 return buf; 146 } 147 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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