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authorSam Ravnborg <sam@ravnborg.org>2007-02-27 03:14:58 -0500
committerSam Ravnborg <sam@ravnborg.org>2007-05-02 14:58:08 -0400
commit5a4910fbbeef14cc91daa41086449a1a4acebc96 (patch)
treed81c13661f886b960712cdfd11f97a95a81d5922 /scripts
parenta61b2dfd1823506dbf1f9b046e0b09237ec1b985 (diff)
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>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/mod/modpost.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 281abb77e033..5f2ecd51bde3 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -616,6 +616,15 @@ static int strrcmp(const char *s, const char *sub)
616 * fromsec = .text 616 * fromsec = .text
617 * atsym = kernel_init 617 * atsym = kernel_init
618 * Some symbols belong to init section but still it is ok to reference 618 * Some symbols belong to init section but still it is ok to reference
619 *
620 * Pattern 7:
621 * Logos used in drivers/video/logo reside in __initdata but the
622 * funtion that references them are EXPORT_SYMBOL() so cannot be
623 * marker __init. So we whitelist them here.
624 * The pattern is:
625 * tosec = .init.data
626 * fromsec = .text*
627 * refsymname = logo_
619 **/ 628 **/
620static int secref_whitelist(const char *modname, const char *tosec, 629static int secref_whitelist(const char *modname, const char *tosec,
621 const char *fromsec, const char *atsym, 630 const char *fromsec, const char *atsym,
@@ -687,6 +696,12 @@ static int secref_whitelist(const char *modname, const char *tosec,
687 (strcmp(fromsec, ".text") == 0) && 696 (strcmp(fromsec, ".text") == 0) &&
688 (strcmp(refsymname, "kernel_init") == 0)) 697 (strcmp(refsymname, "kernel_init") == 0))
689 return 1; 698 return 1;
699
700 /* Check for pattern 7 */
701 if ((strcmp(tosec, ".init.data") == 0) &&
702 (strncmp(fromsec, ".text", strlen(".text")) == 0) &&
703 (strncmp(refsymname, "logo_", strlen("logo_")) == 0))
704 return 1;
690 return 0; 705 return 0;
691} 706}
692 707