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kbuild: prevent modpost from looking for a .cmd file for a static library linked into a module 

This fixes a compile time warning which occurs whenever a static library
is linked into a kernel module.  MODPOST tries to look for a
".<modulename>.cmd" file to look for its dependencies, but that file
doesn't exist or get generated for static libraries.

This patch prevents modpost from looking for a .cmd file when a module is
linked with a static library

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Ashutosh Naik <ashutosh.naik@gmail.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
hifive-unleashed-5.1
Ashutosh Naik 2008-10-25 15:02:53 -07:00 committed by Sam Ravnborg
parent 92f83cc56e
commit e6e6733ed9
1 changed files with 11 additions and 1 deletions
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12
scripts/mod/sumversion.c
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@ -290,6 +290,15 @@ static int parse_file(const char *fname, struct md4_ctx *md)
release_file(file, len);
return 1;
}
/* Check whether the file is a static library or not */
static int is_static_library(const char *objfile)
{
int len = strlen(objfile);
if (objfile[len - 2] == '.' && objfile[len - 1] == 'a')
return 1;
else
return 0;
}
/* We have dir/file.o. Open dir/.file.o.cmd, look for deps_ line to
* figure out source file. */
@ -420,7 +429,8 @@ void get_src_version(const char *modname, char sum[], unsigned sumlen)
while ((fname = strsep(&sources, " ")) != NULL) {
if (!*fname)
continue;
if (!parse_source_files(fname, &md))
if (!(is_static_library(fname)) &&
!parse_source_files(fname, &md))
goto release;
}