From: Rusty Russell Date: Thu, 12 Aug 2010 05:04:16 +0000 (-0600) Subject: param: silence .init.text references from param ops X-Git-Tag: v2.6.36-rc1~57^2~14 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6a841528d288ac420052f5c98fd426b0fcdc5b52;p=pandora-kernel.git 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 Acked-by: Sam Ravnborg Tested-by: Phil Carmody --- 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) &&