WARNING: suspect code indent for conditional statements (16, 23)
#66: FILE: drivers/net/tun.c:2187:
 		else
+                       skb_attempt_defer_free(skb);

ERROR: code indent should use tabs where possible
#68: FILE: drivers/net/tun.c:2188:
+                       skb_attempt_defer_free(skb);$

WARNING: please, no spaces at the start of a line
#68: FILE: drivers/net/tun.c:2188:
+                       skb_attempt_defer_free(skb);$

total: 1 errors, 2 warnings, 0 checks, 22 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.

NOTE: Whitespace errors detected.
      You may wish to use scripts/cleanpatch or scripts/cleanfile

Commit 4a4cb34c1dfd ("tun: use skb_attempt_defer_free in tun_do_read") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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.