From 46b8af50ba5c072b74740c5fa8ba08e6eabb22f8 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sat, 27 Dec 2008 02:43:36 -0500 Subject: headers_check.pl: disallow extern's Since prototypes with "extern" refer to kernel functions, they make no sense in userspace, so reject them automatically. Signed-off-by: Mike Frysinger [sam: made it into a warning] Signed-off-by: Sam Ravnborg --- scripts/headers_check.pl | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'scripts/headers_check.pl') diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl index 488a3b1f760f..5bdd9753007a 100644 --- a/scripts/headers_check.pl +++ b/scripts/headers_check.pl @@ -14,7 +14,9 @@ # Only include files located in asm* and linux* are checked. # The rest are assumed to be system include files. # -# 2) TODO: check for leaked CONFIG_ symbols +# 2) It is checked that prototypes does not use "extern" +# +# 3) TODO: check for leaked CONFIG_ symbols use strict; @@ -33,6 +35,7 @@ foreach my $file (@files) { while ($line = ) { $lineno++; check_include(); + check_prototypes(); } close FH; } @@ -54,3 +57,10 @@ sub check_include } } } + +sub check_prototypes +{ + if ($line =~ m/^\s*extern\b/) { + printf STDERR "$filename:$lineno: extern's make no sense in userspace\n"; + } +} -- cgit v1.2.3-70-g09d2