CHECK: braces {} should be used on all arms of this statement
#65: FILE: fs/proc/proc_sysctl.c:440:
+	if (!name) {
[...]
+	} else for (node = dir->root.rb_node; node;) {
[...]

ERROR: trailing statements should be on next line
#67: FILE: fs/proc/proc_sysctl.c:442:
+	} else for (node = dir->root.rb_node; node;) {

ERROR: trailing statements should be on next line
#67: FILE: fs/proc/proc_sysctl.c:442:
+	} else for (node = dir->root.rb_node; node;) {

WARNING: Prefer kmalloc_obj over kmalloc with sizeof
#120: FILE: fs/proc/proc_sysctl.c:746:
+		cursor = kmalloc(sizeof(*cursor), GFP_KERNEL);

WARNING: line length of 81 exceeds 80 columns
#140: FILE: fs/proc/proc_sysctl.c:836:
+		sysctl_cursor_set(file, table->procname, strlen(table->procname),

CHECK: From:/Signed-off-by: email comments mismatch: 'From: Christian Brauner <brauner@kernel.org>' != 'Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>'

total: 2 errors, 2 warnings, 2 checks, 150 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 df40dd41b309 ("proc: sysctl: resume readdir after the last name it returned") 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.