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authorPaul Bolle <pebolle@tiscali.nl>2014-01-23 15:54:08 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 16:36:55 -0800
commita7e1d98f3e2a0d858fddcac7c66b78b6dcfd9d2e (patch)
tree0356a6bacbdaf9913ed82f0cd5c66291bcac3366 /scripts
parent59d42cd43c7335a3a8081fd6ee54ea41b0c239be (diff)
downloadlinux-a7e1d98f3e2a0d858fddcac7c66b78b6dcfd9d2e.tar.gz
headers_check: special case seqbuf_dump()
"make headers_check" warns about soundcard.h for (at least) five years now: [...]/usr/include/linux/soundcard.h:1054: userspace cannot reference function or variable defined in the kernel We're apparently stuck with providing OSSlib-3.8 compatibility, so let's special case this declaration just to silence it. Notes: 0) Support for OSSlib post 3.8 was already removed in commit 43a990765a ("sound: Remove OSSlib stuff from linux/soundcard.h"). Five years have passed since that commit: do people still care about OSSlib-3.8? If not, quite a bit of code could be remove from soundcard.h (and probably ultrasound.h). 2) By the way, what is actually meant by: It is no longer possible to actually link against OSSlib with this header, but we still provide these macros for programs using them. Doesn't that mean compatibility to OSSlib isn't even useful? 3) Anyhow, a previous discussion soundcard.h, which led to that commit, starts at https://lkml.org/lkml/2009/1/20/349 . 4) And, yes, I sneaked in a whitespace fix. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: Takashi Iwai <tiwai@suse.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/headers_check.pl6
1 files changed, 5 insertions, 1 deletions
diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
index 64ac2380e4d..62320f93e90 100644
--- a/scripts/headers_check.pl
+++ b/scripts/headers_check.pl
@@ -65,7 +65,11 @@ sub check_include
sub check_declarations
{
- if ($line =~m/^(\s*extern|unsigned|char|short|int|long|void)\b/) {
+ # soundcard.h is what it is
+ if ($line =~ m/^void seqbuf_dump\(void\);/) {
+ return;
+ }
+ if ($line =~ m/^(\s*extern|unsigned|char|short|int|long|void)\b/) {
printf STDERR "$filename:$lineno: " .
"userspace cannot reference function or " .
"variable defined in the kernel\n";