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riscv/purgatory: add asm/purgatory.h

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Add arch/riscv/include/asm/purgatory.h and provide the purgatory()
prototype via the architecture header, mirroring the x86 layout.

Remove the workaround from arch/riscv/purgatory/purgatory.c.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260509073850.44595-4-thorsten.blum@linux.dev
[pjw@kernel.org: drop superfluous extern in header file]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
This commit is contained in:
Thorsten Blum 2026-06-06 20:17:52 -06:00 committed by Paul Walmsley
parent 1e01a786a9
commit a24c7f3523
2 changed files with 12 additions and 4 deletions
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11
arch/riscv/include/asm/purgatory.h Normal file
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@ -0,0 +1,11 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_RISCV_PURGATORY_H
#define _ASM_RISCV_PURGATORY_H
#ifndef __ASSEMBLER__
#include <linux/purgatory.h>
void purgatory(void);
#endif /* __ASSEMBLER__ */
#endif /* _ASM_RISCV_PURGATORY_H */

5
arch/riscv/purgatory/purgatory.c
View File

@ -8,9 +8,9 @@
*
*/
#include <linux/purgatory.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <asm/purgatory.h>
#include <asm/string.h>
u8 purgatory_sha256_digest[SHA256_DIGEST_SIZE] __section(".kexec-purgatory");
@ -32,9 +32,6 @@ static bool verify_sha256_digest(void)
return memcmp(digest, purgatory_sha256_digest, sizeof(digest)) == 0;
}
/* workaround for a warning with -Wmissing-prototypes */
void purgatory(void);
void purgatory(void)
{
if (!verify_sha256_digest())