Hi Vignesh, [auto build test WARNING on spi/for-next] [also build test WARNING on v4.11-rc4 next-20170331] [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/Vignesh-R/spi-ti-qspi-Handle-vmalloc-d-buffers/20170403-030332 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next config: x86_64-allmodconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute drivers/spi/spi-ti-qspi.c:449:35: sparse: incompatible types in comparison expression (different type sizes) drivers/spi/spi-ti-qspi.c: In function 'ti_qspi_dma_bounce_buffer': >> drivers/spi/spi-ti-qspi.c:440:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] unsigned int to = (unsigned int)msg->buf; ^ In file included from drivers/spi/spi-ti-qspi.c:16:0: include/linux/kernel.h:755:16: warning: comparison of distinct pointer types lacks a cast (void) (&min1 == &min2); \ ^ include/linux/kernel.h:758:2: note: in expansion of macro '__min' __min(typeof(x), typeof(y), \ ^~~~~ >> drivers/spi/spi-ti-qspi.c:449:21: note: in expansion of macro 'min' size_t xfer_len = min(QSPI_DMA_BUFFER_SIZE, readsize); ^~~ >> drivers/spi/spi-ti-qspi.c:455:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] memcpy((void *)to, qspi->rx_bb_addr, xfer_len); ^ sparse warnings: (new ones prefixed by >>) include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute >> drivers/spi/spi-ti-qspi.c:449:35: sparse: incompatible types in comparison expression (different type sizes) drivers/spi/spi-ti-qspi.c: In function 'ti_qspi_dma_bounce_buffer': drivers/spi/spi-ti-qspi.c:440:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] unsigned int to = (unsigned int)msg->buf; ^ In file included from drivers/spi/spi-ti-qspi.c:16:0: include/linux/kernel.h:755:16: warning: comparison of distinct pointer types lacks a cast (void) (&min1 == &min2); \ ^ include/linux/kernel.h:758:2: note: in expansion of macro '__min' __min(typeof(x), typeof(y), \ ^~~~~ drivers/spi/spi-ti-qspi.c:449:21: note: in expansion of macro 'min' size_t xfer_len = min(QSPI_DMA_BUFFER_SIZE, readsize); ^~~ drivers/spi/spi-ti-qspi.c:455:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] memcpy((void *)to, qspi->rx_bb_addr, xfer_len); ^ vim +440 drivers/spi/spi-ti-qspi.c 434 } 435 436 static int ti_qspi_dma_bounce_buffer(struct ti_qspi *qspi, 437 struct spi_flash_read_message *msg) 438 { 439 size_t readsize = msg->len; > 440 unsigned int to = (unsigned int)msg->buf; 441 dma_addr_t dma_src = qspi->mmap_phys_base + msg->from; 442 int ret = 0; 443 444 /* 445 * Use bounce buffer as FS like jffs2, ubifs may pass 446 * buffers that does not belong to kernel lowmem region. 447 */ 448 while (readsize != 0) { > 449 size_t xfer_len = min(QSPI_DMA_BUFFER_SIZE, readsize); 450 451 ret = ti_qspi_dma_xfer(qspi, qspi->rx_bb_dma_addr, 452 dma_src, xfer_len); 453 if (ret != 0) 454 return ret; > 455 memcpy((void *)to, qspi->rx_bb_addr, xfer_len); 456 readsize -= xfer_len; 457 dma_src += xfer_len; 458 to += xfer_len; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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