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kbuild: whitelist logo references from .text to .init.data 

drivers/video/logo has references from .text to .init.data
but function is only used during early init.
So reference is OK and we do not want to warn about them =>
whitelist the reference.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Sam Ravnborg 2007-02-27 09:14:58 +01:00
parent a61b2dfd18
commit 5a4910fbbe
1 changed files with 15 additions and 0 deletions
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15
scripts/mod/modpost.c
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@ -616,6 +616,15 @@ static int strrcmp(const char *s, const char *sub)
* fromsec = .text
* atsym = kernel_init
* Some symbols belong to init section but still it is ok to reference
*
* Pattern 7:
* Logos used in drivers/video/logo reside in __initdata but the
* funtion that references them are EXPORT_SYMBOL() so cannot be
* marker __init. So we whitelist them here.
* The pattern is:
* tosec = .init.data
* fromsec = .text*
* refsymname = logo_
**/
static int secref_whitelist(const char *modname, const char *tosec,
const char *fromsec, const char *atsym,
@ -687,6 +696,12 @@ static int secref_whitelist(const char *modname, const char *tosec,
(strcmp(fromsec, ".text") == 0) &&
(strcmp(refsymname, "kernel_init") == 0))
return 1;
/* Check for pattern 7 */
if ((strcmp(tosec, ".init.data") == 0) &&
(strncmp(fromsec, ".text", strlen(".text")) == 0) &&
(strncmp(refsymname, "logo_", strlen("logo_")) == 0))
return 1;
return 0;
}