Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 62ec818f authored by Joe Perches's avatar Joe Perches Committed by Linus Torvalds
Browse files

checkpatch: emit an error when using predefined timestamp macros 



Since commit fe7c36c7 ("Makefile: Build with -Werror=date-time if
the compiler supports it"), use of __DATE__, __TIME__, and __TIMESTAMP__
has not been allowed.

As this test is gcc version specific (> 4.9), it hasn't prevented a few
new uses from creeping into the kernel sources.

Make checkpatch complain about them.

Signed-off-by: default avatarJoe Perches <joe@perches.com>
Original-patch-by: default avatarRasmus Villemoes <linux@rasmusvillemoes.dk>

Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 46385326

scripts/checkpatch.pl

+6 −0
Original line number Diff line number Diff line
@@ -5089,6 +5089,12 @@ sub process { 
			}

		}



# check for uses of __DATE__, __TIME__, __TIMESTAMP__

		while ($line =~ /\b(__(?:DATE|TIME|TIMESTAMP)__)\b/g) {

			ERROR("DATE_TIME",

			      "Use of the '$1' macro makes the build non-deterministic\n" . $herecurr);

		}



# check for use of yield()

		if ($line =~ /\byield\s*\(\s*\)/) {

			WARN("YIELD",