CC: [email protected] TO: [email protected] tree: https://android.googlesource.com/kernel/common android-4.19 head: a2038b4794fe99dd786877b89c98b84d78650f69 commit: dfc0e46bcf54404b2614e007efc6848c3727a537 [7/14] ANDROID: GKI: common: dma-mapping: make dma_common_contiguous_remap more robust :::::: branch date: 12 months ago :::::: commit date: 12 months ago config: i386-randconfig-m021-20210430 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
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: kernel/dma/mapping.c:298 dma_common_contiguous_remap() error: kvmalloc() only makes sense with GFP_KERNEL vim +298 kernel/dma/mapping.c 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 284 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 285 /* 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 286 * remaps an allocated contiguous region into another vm_area. 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 287 * Cannot be used in non-sleeping contexts 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 288 */ 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 289 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 290 void *dma_common_contiguous_remap(struct page *page, size_t size, 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 291 unsigned long vm_flags, 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 292 pgprot_t prot, const void *caller) 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 293 { dfc0e46bcf5440 kernel/dma/mapping.c Liam Mark 2015-08-11 294 unsigned long i; 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 295 struct page **pages; 1a3389ffc538a3 drivers/base/dma-mapping.c Catalin Marinas 2017-05-25 296 struct vm_struct *area; 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 297 dfc0e46bcf5440 kernel/dma/mapping.c Liam Mark 2015-08-11 @298 pages = kvmalloc(sizeof(struct page *) << get_order(size), GFP_KERNEL); dfc0e46bcf5440 kernel/dma/mapping.c Liam Mark 2015-08-11 299 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 300 if (!pages) 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 301 return NULL; 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 302 0dd89119614ba7 drivers/base/dma-mapping.c Geliang Tang 2017-03-24 303 for (i = 0; i < (size >> PAGE_SHIFT); i++) 0dd89119614ba7 drivers/base/dma-mapping.c Geliang Tang 2017-03-24 304 pages[i] = nth_page(page, i); 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 305 1a3389ffc538a3 drivers/base/dma-mapping.c Catalin Marinas 2017-05-25 306 area = __dma_common_pages_remap(pages, size, vm_flags, prot, caller); 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 307 dfc0e46bcf5440 kernel/dma/mapping.c Liam Mark 2015-08-11 308 kvfree(pages); 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 309 1a3389ffc538a3 drivers/base/dma-mapping.c Catalin Marinas 2017-05-25 310 if (!area) 1a3389ffc538a3 drivers/base/dma-mapping.c Catalin Marinas 2017-05-25 311 return NULL; 1a3389ffc538a3 drivers/base/dma-mapping.c Catalin Marinas 2017-05-25 312 return area->addr; 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 313 } 513510ddba9650 drivers/base/dma-mapping.c Laura Abbott 2014-10-09 314 --- 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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