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>
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@ -616,6 +616,15 @@ static int strrcmp(const char *s, const char *sub)
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* fromsec = .text
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* fromsec = .text
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* atsym = kernel_init
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* atsym = kernel_init
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* Some symbols belong to init section but still it is ok to reference
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* Some symbols belong to init section but still it is ok to reference
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*
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* Pattern 7:
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* Logos used in drivers/video/logo reside in __initdata but the
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* funtion that references them are EXPORT_SYMBOL() so cannot be
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* marker __init. So we whitelist them here.
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* The pattern is:
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* tosec = .init.data
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* fromsec = .text*
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* refsymname = logo_
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**/
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**/
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static int secref_whitelist(const char *modname, const char *tosec,
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static int secref_whitelist(const char *modname, const char *tosec,
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const char *fromsec, const char *atsym,
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const char *fromsec, const char *atsym,
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@ -687,6 +696,12 @@ static int secref_whitelist(const char *modname, const char *tosec,
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(strcmp(fromsec, ".text") == 0) &&
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(strcmp(fromsec, ".text") == 0) &&
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(strcmp(refsymname, "kernel_init") == 0))
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(strcmp(refsymname, "kernel_init") == 0))
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return 1;
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return 1;
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/* Check for pattern 7 */
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if ((strcmp(tosec, ".init.data") == 0) &&
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(strncmp(fromsec, ".text", strlen(".text")) == 0) &&
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(strncmp(refsymname, "logo_", strlen("logo_")) == 0))
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return 1;
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return 0;
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return 0;
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}
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}
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