x86/purgatory: Include header for warn() declaration
The purgatory code uses parts of the decompressor and provides its own warn() function, but has to include the corresponding header file to avoid a -Wmissing-prototypes warning. It turns out that this function prototype actually differs from the declaration, so change it to get a constant pointer in the declaration and the other definition as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/20230803082619.1369127-5-arnd@kernel.org
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@ -7,7 +7,7 @@
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#include "misc.h"
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#include "error.h"
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void warn(char *m)
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void warn(const char *m)
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{
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error_putstr("\n\n");
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error_putstr(m);
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@ -4,7 +4,7 @@
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#include <linux/compiler.h>
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void warn(char *m);
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void warn(const char *m);
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void error(char *m) __noreturn;
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void panic(const char *fmt, ...) __noreturn __cold;
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@ -14,6 +14,7 @@
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#include <crypto/sha2.h>
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#include <asm/purgatory.h>
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#include "../boot/compressed/error.h"
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#include "../boot/string.h"
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u8 purgatory_sha256_digest[SHA256_DIGEST_SIZE] __section(".kexec-purgatory");
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