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_pool_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_pool_encoded_page_ptr(unsigned long encoded_page)

WARNING: line length of 85 exceeds 80 columns
#158: FILE: include/linux/page_frag_cache.h:83:
+					    struct page_frag *pfrag, bool referenced,

WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
#162: FILE: include/linux/page_frag_cache.h:87:
+		VM_BUG_ON(!nc->pagecnt_bias);

WARNING: line length of 87 exceeds 80 columns
#166: FILE: include/linux/page_frag_cache.h:91:
+	/* Committed offset might be bigger than the current offset due to alignment */

WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
#167: FILE: include/linux/page_frag_cache.h:92:
+	VM_BUG_ON(nc->offset > pfrag->offset);

WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
#169: FILE: include/linux/page_frag_cache.h:94:
+	VM_BUG_ON(used_sz > pfrag->size);

WARNING: line length of 93 exceeds 80 columns
#170: FILE: include/linux/page_frag_cache.h:95:
+	VM_BUG_ON(pfrag->offset + pfrag->size > page_frag_cache_page_size(nc->encoded_page));

WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
#170: FILE: include/linux/page_frag_cache.h:95:
+	VM_BUG_ON(pfrag->offset + pfrag->size > page_frag_cache_page_size(nc->encoded_page));

WARNING: line length of 92 exceeds 80 columns
#175: FILE: include/linux/page_frag_cache.h:100:
+static inline void *__page_frag_alloc_align(struct page_frag_cache *nc, unsigned int fragsz,

WARNING: line length of 84 exceeds 80 columns
#176: FILE: include/linux/page_frag_cache.h:101:
+					    gfp_t gfp_mask, unsigned int align_mask)

WARNING: line length of 85 exceeds 80 columns
#181: FILE: include/linux/page_frag_cache.h:106:
+	va = __page_frag_cache_prepare(nc, fragsz, &page_frag, gfp_mask, align_mask);

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

total: 0 errors, 16 warnings, 0 checks, 271 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 de215d8dd991 ("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, 16 warnings, 0 checks, 271 lines checked