Hi Daniel, kernel test robot noticed the following build warnings: [auto build test WARNING on linuxtv-media-pending/master] [also build test WARNING on linus/master media-tree/master v6.13-rc1 next-20241128] [cannot apply to sailus-media-tree/streams sailus-media-tree/master] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Daniel-Scally/media-v4l2-Add-Renesas-Camera-Receiver-Unit-pixel-formats/20241203-014151 base: https://git.linuxtv.org/media-ci/media-pending.git master patch link: https://lore.kernel.org/r/20241202145831.127297-3-dan.scally%40ideasonboard.com patch subject: [PATCH v3 2/5] media: platform: rzg2l-cru: Use v4l2_get_link_freq() config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20241203/202412031405.75enPqVg-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241203/202412031405.75enPqVg-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412031405.75enPqVg-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c:10: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 548 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c:10: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c:10: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 585 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ In file included from drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c:21: In file included from include/media/v4l2-ctrls.h:14: In file included from include/media/media-request.h:20: In file included from include/media/media-device.h:16: In file included from include/linux/pci.h:2676: In file included from include/linux/dma-mapping.h:11: In file included from include/linux/scatterlist.h:8: In file included from include/linux/mm.h:2213: include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c:261:2: warning: comparison of distinct pointer types ('typeof ((mbps)) *' (aka 'long long *') and 'uint64_t *' (aka 'unsigned long long *')) [-Wcompare-distinct-pointer-types] 261 | do_div(mbps, 1000000); | ^~~~~~~~~~~~~~~~~~~~~ include/asm-generic/div64.h:222:28: note: expanded from macro 'do_div' 222 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ | ~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~ 8 warnings generated. vim +261 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c 238 239 static int rzg2l_csi2_calc_mbps(struct rzg2l_csi2 *csi2) 240 { 241 struct v4l2_subdev *source = csi2->remote_source; 242 const struct rzg2l_csi2_format *format; 243 const struct v4l2_mbus_framefmt *fmt; 244 struct v4l2_subdev_state *state; 245 s64 mbps; 246 247 state = v4l2_subdev_lock_and_get_active_state(&csi2->subdev); 248 fmt = v4l2_subdev_state_get_format(state, RZG2L_CSI2_SINK); 249 format = rzg2l_csi2_code_to_fmt(fmt->code); 250 v4l2_subdev_unlock_state(state); 251 252 /* Read the link frequency from remote subdevice. */ 253 mbps = v4l2_get_link_freq(source->ctrl_handler, format->bpp, 254 csi2->lanes); 255 if (mbps < 0) { 256 dev_err(csi2->dev, "can't retrieve link freq from subdev %s\n", 257 source->name); 258 return -EINVAL; 259 } 260 > 261 do_div(mbps, 1000000); 262 263 return mbps; 264 } 265 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
