WARNING: line length of 81 exceeds 80 columns
#71: FILE: include/linux/gfp.h:370:
+				       __GFP_TRYLOCK | __GFP_NOWARN | __GFP_ZERO,

WARNING: line length of 96 exceeds 80 columns
#74: FILE: include/linux/gfp.h:373:
+#define try_alloc_pages(...)			alloc_hooks(try_alloc_pages_noprof(__VA_ARGS__))

CHECK: Please use a blank line after function/struct/union/enum declarations
#74: FILE: include/linux/gfp.h:373:
+}
+#define try_alloc_pages(...)			alloc_hooks(try_alloc_pages_noprof(__VA_ARGS__))

WARNING: line length of 88 exceeds 80 columns
#144: FILE: mm/internal.h:1178:
+#define ALLOC_TRYLOCK		0x1000000 /* Only use spin_trylock in allocation path */

ERROR: space required before the open brace '{'
#170: FILE: mm/page_alloc.c:2911:
+		if (!spin_trylock_irqsave(&zone->lock, flags)){

CHECK: No space is necessary after a cast
#182: FILE: mm/page_alloc.c:4012:
+	BUILD_BUG_ON(__GFP_TRYLOCK != (__force gfp_t) ALLOC_TRYLOCK);

WARNING: line length of 81 exceeds 80 columns
#191: FILE: mm/page_alloc.c:4021:
+		(gfp_mask & (__GFP_HIGH | __GFP_KSWAPD_RECLAIM | __GFP_TRYLOCK));

CHECK: No space is necessary after a cast
#199: FILE: mm/page_alloc.c:4521:
+	*alloc_flags |= (__force int) (gfp_mask & __GFP_TRYLOCK);

total: 1 errors, 4 warnings, 3 checks, 132 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 a06000a098a3 ("mm, bpf: Introduce __GFP_TRYLOCK for opportunistic page allocation") 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.