linux-kernel - [PATCH v10 1/8] crash: introduce arch/*/asm/crash.h

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Message-Id: <20220721181747.1640-2-eric.devolder@oracle.com>
Date:   Thu, 21 Jul 2022 14:17:40 -0400
From:   Eric DeVolder <eric.devolder@...cle.com>
To:     linux-kernel@...r.kernel.org, x86@...nel.org,
        kexec@...ts.infradead.org, ebiederm@...ssion.com,
        dyoung@...hat.com, bhe@...hat.com, vgoyal@...hat.com
Cc:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, hpa@...or.com,
        nramas@...ux.microsoft.com, thomas.lendacky@....com,
        robh@...nel.org, efault@....de, rppt@...nel.org, david@...hat.com,
        sourabhjain@...ux.ibm.com, konrad.wilk@...cle.com,
        boris.ostrovsky@...cle.com, eric.devolder@...cle.com
Subject: [PATCH v10 1/8] crash: introduce arch/*/asm/crash.h

The use of __weak is being eliminated within kexec sources.
The technique uses macros mapped onto inline functions in
order to replace __weak.

This patchset was using __weak and so in order to replace
__weak, this patch introduces arch/*/asm/crash.h, patterned
after how kexec is moving away from __weak and to the macro
definitions.

No functionality changed, yet.

Signed-off-by: Eric DeVolder <eric.devolder@...cle.com>
---
 arch/arm/include/asm/crash.h     | 5 +++++
 arch/arm64/include/asm/crash.h   | 5 +++++
 arch/ia64/include/asm/crash.h    | 5 +++++
 arch/m68k/include/asm/crash.h    | 5 +++++
 arch/mips/include/asm/crash.h    | 5 +++++
 arch/parisc/include/asm/crash.h  | 5 +++++
 arch/powerpc/include/asm/crash.h | 5 +++++
 arch/riscv/include/asm/crash.h   | 5 +++++
 arch/s390/include/asm/crash.h    | 5 +++++
 arch/sh/include/asm/crash.h      | 5 +++++
 include/linux/crash_core.h       | 2 ++
 11 files changed, 52 insertions(+)
 create mode 100644 arch/arm/include/asm/crash.h
 create mode 100644 arch/arm64/include/asm/crash.h
 create mode 100644 arch/ia64/include/asm/crash.h
 create mode 100644 arch/m68k/include/asm/crash.h
 create mode 100644 arch/mips/include/asm/crash.h
 create mode 100644 arch/parisc/include/asm/crash.h
 create mode 100644 arch/powerpc/include/asm/crash.h
 create mode 100644 arch/riscv/include/asm/crash.h
 create mode 100644 arch/s390/include/asm/crash.h
 create mode 100644 arch/sh/include/asm/crash.h

diff --git a/arch/arm/include/asm/crash.h b/arch/arm/include/asm/crash.h
new file mode 100644
index 000000000000..385646957d60
--- /dev/null
+++ b/arch/arm/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ARM_CRASH_H
+#define _ASM_ARM_CRASH_H
+
+#endif /* _ASM_ARM_CRASH_H */
diff --git a/arch/arm64/include/asm/crash.h b/arch/arm64/include/asm/crash.h
new file mode 100644
index 000000000000..ec8870c1ea49
--- /dev/null
+++ b/arch/arm64/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ARM64_CRASH_H
+#define _ASM_ARM64_CRASH_H
+
+#endif /* _ASM_ARM64_CRASH_H */
diff --git a/arch/ia64/include/asm/crash.h b/arch/ia64/include/asm/crash.h
new file mode 100644
index 000000000000..02a457cccda3
--- /dev/null
+++ b/arch/ia64/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_IA64_CRASH_H
+#define _ASM_IA64_CRASH_H
+
+#endif /* _ASM_IA64_CRASH_H */
diff --git a/arch/m68k/include/asm/crash.h b/arch/m68k/include/asm/crash.h
new file mode 100644
index 000000000000..ba6e412a1267
--- /dev/null
+++ b/arch/m68k/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_M68K_CRASH_H
+#define _ASM_M68K_CRASH_H
+
+#endif /* _ASM_M68K_CRASH_H */
diff --git a/arch/mips/include/asm/crash.h b/arch/mips/include/asm/crash.h
new file mode 100644
index 000000000000..35872522c574
--- /dev/null
+++ b/arch/mips/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_MIPS_CRASH_H
+#define _ASM_MIPS_CRASH_H
+
+#endif /* _ASM_MIPS_CRASH_H */
diff --git a/arch/parisc/include/asm/crash.h b/arch/parisc/include/asm/crash.h
new file mode 100644
index 000000000000..96833b727179
--- /dev/null
+++ b/arch/parisc/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_PARISC_CRASH_H
+#define _ASM_PARISC_CRASH_H
+
+#endif /* _ASM_PARISC_CRASH_H */
diff --git a/arch/powerpc/include/asm/crash.h b/arch/powerpc/include/asm/crash.h
new file mode 100644
index 000000000000..40ce71e56ac1
--- /dev/null
+++ b/arch/powerpc/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_CRASH_H
+#define _ASM_POWERPC_CRASH_H
+
+#endif /* _ASM_POWERPC_CRASH_H */
diff --git a/arch/riscv/include/asm/crash.h b/arch/riscv/include/asm/crash.h
new file mode 100644
index 000000000000..24f3aea99707
--- /dev/null
+++ b/arch/riscv/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_RISCV_CRASH_H
+#define _ASM_RISCV_CRASH_H
+
+#endif /* _ASM_RISCV_CRASH_H */
diff --git a/arch/s390/include/asm/crash.h b/arch/s390/include/asm/crash.h
new file mode 100644
index 000000000000..0db16ad4c75f
--- /dev/null
+++ b/arch/s390/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_S390_CRASH_H
+#define _ASM_S390_CRASH_H
+
+#endif /* _ASM_S390_CRASH_H */
diff --git a/arch/sh/include/asm/crash.h b/arch/sh/include/asm/crash.h
new file mode 100644
index 000000000000..f54e12f88cae
--- /dev/null
+++ b/arch/sh/include/asm/crash.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_SH_CRASH_H
+#define _ASM_SH_CRASH_H
+
+#endif /* _ASM_SH_CRASH_H */
diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h
index de62a722431e..cb0f1916fbf5 100644
--- a/include/linux/crash_core.h
+++ b/include/linux/crash_core.h
@@ -6,6 +6,8 @@
 #include <linux/elfcore.h>
 #include <linux/elf.h>
 
+#include <asm/crash.h>
+
 #define CRASH_CORE_NOTE_NAME	   "CORE"
 #define CRASH_CORE_NOTE_HEAD_BYTES ALIGN(sizeof(struct elf_note), 4)
 #define CRASH_CORE_NOTE_NAME_BYTES ALIGN(sizeof(CRASH_CORE_NOTE_NAME), 4)
-- 
2.31.1