WARNING: Avoid unnecessary line continuations
#301: FILE: include/net/page_pool/types.h:168:
+static_assert(offsetof(struct page_pool_item_block, pp) == \

WARNING: line length of 81 exceeds 80 columns
#346: FILE: net/core/devmem.c:35:
+	return netmem_pp_item_to_pp(niov->pp_item)->mp_ops == &dmabuf_devmem_ops;

WARNING: line length of 81 exceeds 80 columns
#420: FILE: net/core/page_pool.c:342:
+#define ITEMS_PER_PAGE	((PAGE_SIZE -						\

WARNING: line length of 81 exceeds 80 columns
#421: FILE: net/core/page_pool.c:343:
+			  offsetof(struct page_pool_item_block, items)) /	\

WARNING: Argument 'item' is not used in function-like macro
#434: FILE: net/core/page_pool.c:356:
+#define page_pool_item_set_used(item)

WARNING: Argument 'item' is not used in function-like macro
#435: FILE: net/core/page_pool.c:357:
+#define page_pool_item_clear_used(item)

WARNING: Argument 'item' is not used in function-like macro
#436: FILE: net/core/page_pool.c:358:
+#define page_pool_item_is_used(item)		false

WARNING: line length of 86 exceeds 80 columns
#681: FILE: net/core/page_pool.c:742:
+	if (pool->dma_map && unlikely(!page_pool_dma_map(pool, page_to_netmem(page))))

CHECK: Please use a blank line after function/struct/union/enum declarations
#840: FILE: net/core/page_pool_priv.h:51:
 }
+static inline void page_pool_clear_pp_info(struct page_pool *pool,

total: 0 errors, 8 warnings, 1 checks, 665 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 9c52c0a17ba6 ("page_pool: fix IOMMU crash when driver has already unbound") 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, 8 warnings, 1 checks, 665 lines checked