Commit 62ec818f authored Feb 13, 2015 by Joe Perches Committed by Linus Torvalds Feb 13, 2015

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: Joe Perches <joe@perches.com>
Original-patch-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus 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",

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