diff options
| author | Rusty Russell <rusty@rustcorp.com.au> | 2010-08-11 23:04:16 -0600 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2010-08-11 23:04:17 +0930 |
| commit | 6a841528d288ac420052f5c98fd426b0fcdc5b52 (patch) | |
| tree | 2de0658e11c12e96a2e08e8793c61bf3ab728840 /scripts/mod/modpost.c | |
| parent | 549a8a030693912d5ec4106c2f538593c482a1e4 (diff) | |
| download | lwn-6a841528d288ac420052f5c98fd426b0fcdc5b52.tar.gz lwn-6a841528d288ac420052f5c98fd426b0fcdc5b52.zip | |
param: silence .init.text references from param ops
Ideally, we'd check that it was only the "set" function which was __init,
and that the permissions were r/o. But that's a little hard.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Diffstat (limited to 'scripts/mod/modpost.c')
| -rw-r--r-- | scripts/mod/modpost.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 1ce655dde99e..b16044002d91 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1033,6 +1033,13 @@ static const struct sectioncheck *section_mismatch( * fromsec = .data* * atsym =__param* * + * Pattern 1a: + * module_param_call() ops can refer to __init set function if permissions=0 + * The pattern is identified by: + * tosec = .init.text + * fromsec = .data* + * atsym = __param_ops_* + * * Pattern 2: * Many drivers utilise a *driver container with references to * add, remove, probe functions etc. @@ -1067,6 +1074,12 @@ static int secref_whitelist(const struct sectioncheck *mismatch, (strncmp(fromsym, "__param", strlen("__param")) == 0)) return 0; + /* Check for pattern 1a */ + if (strcmp(tosec, ".init.text") == 0 && + match(fromsec, data_sections) && + (strncmp(fromsym, "__param_ops_", strlen("__param_ops_")) == 0)) + return 0; + /* Check for pattern 2 */ if (match(tosec, init_exit_sections) && match(fromsec, data_sections) && |