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checkpatch: emit an error when using predefined timestamp macros

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Since commit fe7c36c7bd ("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>
This commit is contained in:
Joe Perches 2015-02-13 14:38:18 -08:00 committed by Linus Torvalds
parent 46385326cc
commit 62ec818f55
1 changed files with 6 additions and 0 deletions
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6
scripts/checkpatch.pl
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@ -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",