WARNING: line length of 95 exceeds 80 columns
#47: FILE: kernel/bpf/verifier.c:9967:
+static bool retval_range_within(struct bpf_retval_range range, const struct bpf_reg_state *reg,

WARNING: line length of 96 exceeds 80 columns
#52: FILE: kernel/bpf/verifier.c:9971:
+		return range.minval <= reg->s32_min_value && reg->s32_max_value <= range.maxval;

WARNING: line length of 90 exceeds 80 columns
#54: FILE: kernel/bpf/verifier.c:9973:
+		return range.minval <= reg->smin_value && reg->smax_value <= range.maxval;

WARNING: line length of 85 exceeds 80 columns
#64: FILE: kernel/bpf/verifier.c:10010:
+		/* enforce R0 return value range, and bpf_callback_t returns 64bit */

WARNING: line length of 82 exceeds 80 columns
#65: FILE: kernel/bpf/verifier.c:10011:
+		if (!retval_range_within(callee->callback_ret_range, r0, false)) {

total: 0 errors, 5 warnings, 0 checks, 47 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 2b21d94c5957 ("bpf: Fix compare error in function retval_range_within") 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, 5 warnings, 0 checks, 47 lines checked