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From: Arnd Bergmann <arnd@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>, Ard Biesheuvel <ardb@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Marc Zyngier <maz@kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>,
	James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	Kees Cook <keescook@chromium.org>,
	Suren Baghdasaryan <surenb@google.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org,
	kvmarm@lists.linux.dev
Subject: [PATCH 04/15] arm64: move cpu_suspend_set_dbg_restorer() prototype to header
Date: Tue, 16 May 2023 18:06:31 +0200	[thread overview]
Message-ID: <20230516160642.523862-5-arnd@kernel.org> (raw)
In-Reply-To: <20230516160642.523862-1-arnd@kernel.org>

From: Arnd Bergmann <arnd@arndb.de>

The cpu_suspend_set_dbg_restorer() function is called by the hw_breakpoint
code but defined in another file. Since the declaration is in the
same file as the caller, the compiler warns about the definition
without a prior prototype:

arch/arm64/kernel/suspend.c:35:13: error: no previous prototype for 'cpu_suspend_set_dbg_restorer' [-Werror=missing-prototypes]

Move it into the corresponding header instead to avoid the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm64/include/asm/hw_breakpoint.h | 8 ++++++++
 arch/arm64/kernel/hw_breakpoint.c      | 8 --------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/include/asm/hw_breakpoint.h b/arch/arm64/include/asm/hw_breakpoint.h
index fa4c6ff3aa9b..84055329cd8b 100644
--- a/arch/arm64/include/asm/hw_breakpoint.h
+++ b/arch/arm64/include/asm/hw_breakpoint.h
@@ -154,4 +154,12 @@ static inline int get_num_wrps(void)
 						ID_AA64DFR0_EL1_WRPs_SHIFT);
 }
 
+#ifdef CONFIG_CPU_PM
+extern void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int));
+#else
+static inline void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int))
+{
+}
+#endif
+
 #endif	/* __ASM_BREAKPOINT_H */
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index b29a311bb055..db2a1861bb97 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -973,14 +973,6 @@ static int hw_breakpoint_reset(unsigned int cpu)
 	return 0;
 }
 
-#ifdef CONFIG_CPU_PM
-extern void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int));
-#else
-static inline void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int))
-{
-}
-#endif
-
 /*
  * One-time initialisation.
  */
-- 
2.39.2


WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>, Ard Biesheuvel <ardb@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Marc Zyngier <maz@kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>,
	James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	Kees Cook <keescook@chromium.org>,
	Suren Baghdasaryan <surenb@google.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org,
	kvmarm@lists.linux.dev
Subject: [PATCH 04/15] arm64: move cpu_suspend_set_dbg_restorer() prototype to header
Date: Tue, 16 May 2023 18:06:31 +0200	[thread overview]
Message-ID: <20230516160642.523862-5-arnd@kernel.org> (raw)
In-Reply-To: <20230516160642.523862-1-arnd@kernel.org>

From: Arnd Bergmann <arnd@arndb.de>

The cpu_suspend_set_dbg_restorer() function is called by the hw_breakpoint
code but defined in another file. Since the declaration is in the
same file as the caller, the compiler warns about the definition
without a prior prototype:

arch/arm64/kernel/suspend.c:35:13: error: no previous prototype for 'cpu_suspend_set_dbg_restorer' [-Werror=missing-prototypes]

Move it into the corresponding header instead to avoid the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm64/include/asm/hw_breakpoint.h | 8 ++++++++
 arch/arm64/kernel/hw_breakpoint.c      | 8 --------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/include/asm/hw_breakpoint.h b/arch/arm64/include/asm/hw_breakpoint.h
index fa4c6ff3aa9b..84055329cd8b 100644
--- a/arch/arm64/include/asm/hw_breakpoint.h
+++ b/arch/arm64/include/asm/hw_breakpoint.h
@@ -154,4 +154,12 @@ static inline int get_num_wrps(void)
 						ID_AA64DFR0_EL1_WRPs_SHIFT);
 }
 
+#ifdef CONFIG_CPU_PM
+extern void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int));
+#else
+static inline void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int))
+{
+}
+#endif
+
 #endif	/* __ASM_BREAKPOINT_H */
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index b29a311bb055..db2a1861bb97 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -973,14 +973,6 @@ static int hw_breakpoint_reset(unsigned int cpu)
 	return 0;
 }
 
-#ifdef CONFIG_CPU_PM
-extern void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int));
-#else
-static inline void cpu_suspend_set_dbg_restorer(int (*hw_bp_restore)(unsigned int))
-{
-}
-#endif
-
 /*
  * One-time initialisation.
  */
-- 
2.39.2


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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2023-05-16 16:07 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-16 16:06 [PATCH 00/15] arm64: address -Wmissing-prototype warnings Arnd Bergmann
2023-05-16 16:06 ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 01/15] arm64: xor-neon: mark xor_arm64_neon_*() static Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 02/15] arm64: add scs_patch_vmlinux prototype Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 03/15] arm64: avoid prototype warnings for syscalls Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` Arnd Bergmann [this message]
2023-05-16 16:06   ` [PATCH 04/15] arm64: move cpu_suspend_set_dbg_restorer() prototype to header Arnd Bergmann
2023-05-16 16:06 ` [PATCH 05/15] arm64: spectre: provide prototypes for internal functions Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 06/15] arm64: kvm: add prototypes for functions called in asm Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 07/15] arm64: cpuidle: fix #ifdef for acpi functions Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 08/15] arm64: efi: add efi_handle_corrupted_x18 prototype Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 09/15] arm64: hide unused is_valid_bugaddr() Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 10/15] arm64: module-plts: inline linux/moduleloader.h Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 11/15] arm64: flush: include linux/libnvdimm.h Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 12/15] arm64: kaslr: add kaslr_early_init() declaration Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 13/15] arm64: signal: include asm/exception.h Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 14/15] arm64: move early_brk64 prototype to header Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 16:06 ` [PATCH 15/15] arm64: add alt_cb_patch_nops prototype Arnd Bergmann
2023-05-16 16:06   ` Arnd Bergmann
2023-05-16 17:17 ` [PATCH 00/15] arm64: address -Wmissing-prototype warnings Ard Biesheuvel
2023-05-16 17:17   ` Ard Biesheuvel
2023-05-16 19:53 ` Kees Cook
2023-05-16 19:53   ` Kees Cook
2023-05-25 18:25 ` Catalin Marinas
2023-05-25 18:25   ` Catalin Marinas

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