CC: [email protected] CC: [email protected] TO: Anton Yakovlev <[email protected]> CC: Takashi Iwai <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: cb690f5238d71f543f4ce874aa59237cf53a877c commit: f40a28679e0b7cb3a9cc6627a8dbb40961990f0a ALSA: virtio: handling control and I/O messages for the PCM device date: 8 months ago :::::: branch date: 21 hours ago :::::: commit date: 8 months ago config: arc-randconfig-m031-20210928 (attached as .config) compiler: arc-elf-gcc (GCC) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> smatch warnings: sound/virtio/virtio_pcm_msg.c:56 virtsnd_pcm_sg_num() warn: should '((pg - mem_map) + arch_pfn_offset) << 13' be a 64 bit type? vim +56 sound/virtio/virtio_pcm_msg.c f40a28679e0b7c Anton Yakovlev 2021-03-02 38 f40a28679e0b7c Anton Yakovlev 2021-03-02 39 /** f40a28679e0b7c Anton Yakovlev 2021-03-02 40 * virtsnd_pcm_sg_num() - Count the number of sg-elements required to represent f40a28679e0b7c Anton Yakovlev 2021-03-02 41 * vmalloc'ed buffer. f40a28679e0b7c Anton Yakovlev 2021-03-02 42 * @data: Pointer to vmalloc'ed buffer. f40a28679e0b7c Anton Yakovlev 2021-03-02 43 * @length: Buffer size. f40a28679e0b7c Anton Yakovlev 2021-03-02 44 * f40a28679e0b7c Anton Yakovlev 2021-03-02 45 * Context: Any context. f40a28679e0b7c Anton Yakovlev 2021-03-02 46 * Return: Number of physically contiguous parts in the @data. f40a28679e0b7c Anton Yakovlev 2021-03-02 47 */ f40a28679e0b7c Anton Yakovlev 2021-03-02 48 static int virtsnd_pcm_sg_num(u8 *data, unsigned int length) f40a28679e0b7c Anton Yakovlev 2021-03-02 49 { f40a28679e0b7c Anton Yakovlev 2021-03-02 50 phys_addr_t sg_address; f40a28679e0b7c Anton Yakovlev 2021-03-02 51 unsigned int sg_length; f40a28679e0b7c Anton Yakovlev 2021-03-02 52 int num = 0; f40a28679e0b7c Anton Yakovlev 2021-03-02 53 f40a28679e0b7c Anton Yakovlev 2021-03-02 54 while (length) { f40a28679e0b7c Anton Yakovlev 2021-03-02 55 struct page *pg = vmalloc_to_page(data); f40a28679e0b7c Anton Yakovlev 2021-03-02 @56 phys_addr_t pg_address = page_to_phys(pg); f40a28679e0b7c Anton Yakovlev 2021-03-02 57 size_t pg_length; f40a28679e0b7c Anton Yakovlev 2021-03-02 58 f40a28679e0b7c Anton Yakovlev 2021-03-02 59 pg_length = PAGE_SIZE - offset_in_page(data); f40a28679e0b7c Anton Yakovlev 2021-03-02 60 if (pg_length > length) f40a28679e0b7c Anton Yakovlev 2021-03-02 61 pg_length = length; f40a28679e0b7c Anton Yakovlev 2021-03-02 62 f40a28679e0b7c Anton Yakovlev 2021-03-02 63 if (!num || sg_address + sg_length != pg_address) { f40a28679e0b7c Anton Yakovlev 2021-03-02 64 sg_address = pg_address; f40a28679e0b7c Anton Yakovlev 2021-03-02 65 sg_length = pg_length; f40a28679e0b7c Anton Yakovlev 2021-03-02 66 num++; f40a28679e0b7c Anton Yakovlev 2021-03-02 67 } else { f40a28679e0b7c Anton Yakovlev 2021-03-02 68 sg_length += pg_length; f40a28679e0b7c Anton Yakovlev 2021-03-02 69 } f40a28679e0b7c Anton Yakovlev 2021-03-02 70 f40a28679e0b7c Anton Yakovlev 2021-03-02 71 data += pg_length; f40a28679e0b7c Anton Yakovlev 2021-03-02 72 length -= pg_length; f40a28679e0b7c Anton Yakovlev 2021-03-02 73 } f40a28679e0b7c Anton Yakovlev 2021-03-02 74 f40a28679e0b7c Anton Yakovlev 2021-03-02 75 return num; f40a28679e0b7c Anton Yakovlev 2021-03-02 76 } f40a28679e0b7c Anton Yakovlev 2021-03-02 77 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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