WARNING: line length of 81 exceeds 80 columns
#45: FILE: include/linux/mm_types_task.h:53:
+	/* encoded_page consists of the virtual address, pfmemalloc bit and order

WARNING: line length of 85 exceeds 80 columns
#90: FILE: include/linux/page_frag_cache.h:19:
+#define PAGE_FRAG_CACHE_PFMEMALLOC_BIT		BIT(PAGE_FRAG_CACHE_PFMEMALLOC_SHIFT)

WARNING: line length of 85 exceeds 80 columns
#97: FILE: include/linux/page_frag_cache.h:26:
+#define PAGE_FRAG_CACHE_PFMEMALLOC_BIT		BIT(PAGE_FRAG_CACHE_PFMEMALLOC_SHIFT)

WARNING: line length of 84 exceeds 80 columns
#112: FILE: include/linux/page_frag_cache.h:41:
+static inline unsigned long page_frag_encoded_page_order(unsigned long encoded_page)

WARNING: line length of 81 exceeds 80 columns
#127: FILE: include/linux/page_frag_cache.h:56:
+static inline struct page *page_frag_encoded_page_ptr(unsigned long encoded_page)

WARNING: line length of 84 exceeds 80 columns
#261: FILE: mm/page_frag_cache.c:121:
+					page_frag_encoded_page_order(encoded_page));

total: 0 errors, 6 warnings, 0 checks, 220 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit cd4a483393a8 ("mm: page_frag: reuse existing space for 'size' and 'pfmemalloc'") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 6 warnings, 0 checks, 220 lines checked