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From: Thorsten Blum <thorsten.blum@linux.dev>
To: Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	Eric Biggers <ebiggers@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>
Cc: Thorsten Blum <thorsten.blum@linux.dev>,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] riscv/purgatory: add asm/purgatory.h
Date: Sun, 12 Apr 2026 21:41:16 +0200	[thread overview]
Message-ID: <20260412194113.228703-6-thorsten.blum@linux.dev> (raw)
In-Reply-To: <20260412194113.228703-4-thorsten.blum@linux.dev>

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>
---
 arch/riscv/include/asm/purgatory.h | 11 +++++++++++
 arch/riscv/purgatory/purgatory.c   |  5 +----
 2 files changed, 12 insertions(+), 4 deletions(-)
 create mode 100644 arch/riscv/include/asm/purgatory.h

diff --git a/arch/riscv/include/asm/purgatory.h b/arch/riscv/include/asm/purgatory.h
new file mode 100644
index 000000000000..a63687be2517
--- /dev/null
+++ b/arch/riscv/include/asm/purgatory.h
@@ -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>
+
+extern void purgatory(void);
+#endif	/* __ASSEMBLER__ */
+
+#endif /* _ASM_RISCV_PURGATORY_H */
diff --git a/arch/riscv/purgatory/purgatory.c b/arch/riscv/purgatory/purgatory.c
index 15c72dafa3d8..6a6e6f611a56 100644
--- a/arch/riscv/purgatory/purgatory.c
+++ b/arch/riscv/purgatory/purgatory.c
@@ -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));
 }
 
-/* workaround for a warning with -Wmissing-prototypes */
-void purgatory(void);
-
 void purgatory(void)
 {
 	if (verify_sha256_digest())

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WARNING: multiple messages have this Message-ID (diff)
From: Thorsten Blum <thorsten.blum@linux.dev>
To: Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	Eric Biggers <ebiggers@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>
Cc: Thorsten Blum <thorsten.blum@linux.dev>,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] riscv/purgatory: add asm/purgatory.h
Date: Sun, 12 Apr 2026 21:41:16 +0200	[thread overview]
Message-ID: <20260412194113.228703-6-thorsten.blum@linux.dev> (raw)
In-Reply-To: <20260412194113.228703-4-thorsten.blum@linux.dev>

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>
---
 arch/riscv/include/asm/purgatory.h | 11 +++++++++++
 arch/riscv/purgatory/purgatory.c   |  5 +----
 2 files changed, 12 insertions(+), 4 deletions(-)
 create mode 100644 arch/riscv/include/asm/purgatory.h

diff --git a/arch/riscv/include/asm/purgatory.h b/arch/riscv/include/asm/purgatory.h
new file mode 100644
index 000000000000..a63687be2517
--- /dev/null
+++ b/arch/riscv/include/asm/purgatory.h
@@ -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>
+
+extern void purgatory(void);
+#endif	/* __ASSEMBLER__ */
+
+#endif /* _ASM_RISCV_PURGATORY_H */
diff --git a/arch/riscv/purgatory/purgatory.c b/arch/riscv/purgatory/purgatory.c
index 15c72dafa3d8..6a6e6f611a56 100644
--- a/arch/riscv/purgatory/purgatory.c
+++ b/arch/riscv/purgatory/purgatory.c
@@ -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));
 }
 
-/* workaround for a warning with -Wmissing-prototypes */
-void purgatory(void);
-
 void purgatory(void)
 {
 	if (verify_sha256_digest())

  reply	other threads:[~2026-04-12 19:42 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-12 19:41 [PATCH 1/2] riscv/purgatory: return bool from verify_sha256_digest Thorsten Blum
2026-04-12 19:41 ` Thorsten Blum
2026-04-12 19:41 ` Thorsten Blum [this message]
2026-04-12 19:41   ` [PATCH 2/2] riscv/purgatory: add asm/purgatory.h Thorsten Blum

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