From patchwork Thu Aug 10 14:19:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 1819871 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=MhFCHi3J; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RM8L95J8pz1yYl for ; Fri, 11 Aug 2023 00:23:45 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=MhFCHi3J; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4RM8L92tn3z3c5k for ; Fri, 11 Aug 2023 00:23:45 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=MhFCHi3J; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2604:1380:4641:c500::1; helo=dfw.source.kernel.org; envelope-from=arnd@kernel.org; receiver=lists.ozlabs.org) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4RM8Kr2fhSz2xBV for ; Fri, 11 Aug 2023 00:23:28 +1000 (AEST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 9286565DB4; Thu, 10 Aug 2023 14:23:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87822C433C7; Thu, 10 Aug 2023 14:23:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1691677406; bh=cs9hAoMZsISt2PoCjIqaqsE5Y0qpeoj7NexdJjqc7FI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MhFCHi3JfnnOM/wH/IUOXANZeACqMVIJZ1ytPw9oqirmgzUbc4ifzc3UZCYagrzFa ab1BvcU8okF47/4vwMqvZE5SZcJsgFQR1j3MeDVm2xwJkG9X3SnjwhfSt3QZ8F5Tmz WbTe91EB1rcFkUsKbPcVuSqsvK1JV67KuASRjv0aOxBQc/TX+0g5x8CYtAo/w9ZN0T xAA6+TqvJPn7tmPP1BasNe0rDYp2JDl17cAbUzvfKuyAk7KJBvEI1h9mu8/Kr1hehw 4aa2owUC1brNn4/3U/VkfmM8Bkm2fdDLdQUnKxG3D1cch/NrLlHAsCUdn7G2Ox4pZ6 z8Zf/Z+WsCXJA== From: Arnd Bergmann To: Andrew Morton , linux-kernel@vger.kernel.org, "Naveen N. Rao" , Anil S Keshavamurthy , Masami Hiramatsu Subject: [PATCH 14/17] kprobes: unify kprobes_exceptions_nofify() prototypes Date: Thu, 10 Aug 2023 16:19:32 +0200 Message-Id: <20230810141947.1236730-15-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230810141947.1236730-1-arnd@kernel.org> References: <20230810141947.1236730-1-arnd@kernel.org> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rich Felker , linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Catalin Marinas , Dave Hansen , Alexei Starovoitov , "H. Peter Anvin" , sparclinux@vger.kernel.org, Alexander Gordeev , Will Deacon , Gaosheng Cui , linux-s390@vger.kernel.org, linux-snps-arc@lists.infradead.org, Arnd Bergmann , Yoshinori Sato , x86@kernel.org, Russell King , Ingo Molnar , Vineet Gupta , Christian Borntraeger , linux-trace-kernel@vger.kernel.org, Vasily Gorbik , Heiko Carstens , Nicholas Piggin , Yang Jihong , Borislav Petkov , "Steven Rostedt \(Google\)" , John Paul Adrian Glaubitz , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Thomas Bogendoerfer , linux-mips@vger.kernel.org, Sven Schnelle , Jiri Olsa , linuxppc-dev@lists.ozlabs.org, "David S. Miller" Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Arnd Bergmann Most architectures that support kprobes declare this function in their own asm/kprobes.h header and provide an override, but some are missing the prototype, which causes a warning for the __weak stub implementation: kernel/kprobes.c:1865:12: error: no previous prototype for 'kprobe_exceptions_notify' [-Werror=missing-prototypes] 1865 | int __weak kprobe_exceptions_notify(struct notifier_block *self, Move the prototype into linux/kprobes.h so it is visible to all the definitions. Signed-off-by: Arnd Bergmann Acked-by: Masami Hiramatsu (Google) --- arch/arc/include/asm/kprobes.h | 3 --- arch/arm/include/asm/kprobes.h | 2 -- arch/arm64/include/asm/kprobes.h | 2 -- arch/ia64/include/asm/kprobes.h | 2 -- arch/mips/include/asm/kprobes.h | 2 -- arch/powerpc/include/asm/kprobes.h | 2 -- arch/s390/include/asm/kprobes.h | 2 -- arch/sh/include/asm/kprobes.h | 2 -- arch/sparc/include/asm/kprobes.h | 2 -- arch/x86/include/asm/kprobes.h | 2 -- include/linux/kprobes.h | 4 ++++ 11 files changed, 4 insertions(+), 21 deletions(-) diff --git a/arch/arc/include/asm/kprobes.h b/arch/arc/include/asm/kprobes.h index de1566e32cb89..68e8301c0df2c 100644 --- a/arch/arc/include/asm/kprobes.h +++ b/arch/arc/include/asm/kprobes.h @@ -32,9 +32,6 @@ struct kprobe; void arch_remove_kprobe(struct kprobe *p); -int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); - struct prev_kprobe { struct kprobe *kp; unsigned long status; diff --git a/arch/arm/include/asm/kprobes.h b/arch/arm/include/asm/kprobes.h index e26a278d301ab..5b8dbf1b0be49 100644 --- a/arch/arm/include/asm/kprobes.h +++ b/arch/arm/include/asm/kprobes.h @@ -40,8 +40,6 @@ struct kprobe_ctlblk { void arch_remove_kprobe(struct kprobe *); int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr); -int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); /* optinsn template addresses */ extern __visible kprobe_opcode_t optprobe_template_entry[]; diff --git a/arch/arm64/include/asm/kprobes.h b/arch/arm64/include/asm/kprobes.h index 05cd82eeca136..be7a3680dadff 100644 --- a/arch/arm64/include/asm/kprobes.h +++ b/arch/arm64/include/asm/kprobes.h @@ -37,8 +37,6 @@ struct kprobe_ctlblk { void arch_remove_kprobe(struct kprobe *); int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr); -int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); void __kretprobe_trampoline(void); void __kprobes *trampoline_probe_handler(struct pt_regs *regs); diff --git a/arch/ia64/include/asm/kprobes.h b/arch/ia64/include/asm/kprobes.h index 9e956768946cc..56004f97df6d2 100644 --- a/arch/ia64/include/asm/kprobes.h +++ b/arch/ia64/include/asm/kprobes.h @@ -107,8 +107,6 @@ struct arch_specific_insn { }; extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); -extern int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); extern void arch_remove_kprobe(struct kprobe *p); diff --git a/arch/mips/include/asm/kprobes.h b/arch/mips/include/asm/kprobes.h index 68b1e5d458cfb..bc27d99c94363 100644 --- a/arch/mips/include/asm/kprobes.h +++ b/arch/mips/include/asm/kprobes.h @@ -71,8 +71,6 @@ struct kprobe_ctlblk { struct prev_kprobe prev_kprobe; }; -extern int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); #endif /* CONFIG_KPROBES */ #endif /* _ASM_KPROBES_H */ diff --git a/arch/powerpc/include/asm/kprobes.h b/arch/powerpc/include/asm/kprobes.h index c8e4b4fd4e330..4525a9c68260d 100644 --- a/arch/powerpc/include/asm/kprobes.h +++ b/arch/powerpc/include/asm/kprobes.h @@ -84,8 +84,6 @@ struct arch_optimized_insn { kprobe_opcode_t *insn; }; -extern int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); extern int kprobe_handler(struct pt_regs *regs); extern int kprobe_post_handler(struct pt_regs *regs); diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h index 83f732ca3af4d..3f87125dd9b0d 100644 --- a/arch/s390/include/asm/kprobes.h +++ b/arch/s390/include/asm/kprobes.h @@ -72,8 +72,6 @@ struct kprobe_ctlblk { void arch_remove_kprobe(struct kprobe *p); int kprobe_fault_handler(struct pt_regs *regs, int trapnr); -int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); #define flush_insn_slot(p) do { } while (0) diff --git a/arch/sh/include/asm/kprobes.h b/arch/sh/include/asm/kprobes.h index eeba83e0a7d29..65d4c3316a5bd 100644 --- a/arch/sh/include/asm/kprobes.h +++ b/arch/sh/include/asm/kprobes.h @@ -46,8 +46,6 @@ struct kprobe_ctlblk { }; extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); -extern int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); extern int kprobe_handle_illslot(unsigned long pc); #else diff --git a/arch/sparc/include/asm/kprobes.h b/arch/sparc/include/asm/kprobes.h index 06c2bc767ef75..aec742cd898f2 100644 --- a/arch/sparc/include/asm/kprobes.h +++ b/arch/sparc/include/asm/kprobes.h @@ -47,8 +47,6 @@ struct kprobe_ctlblk { struct prev_kprobe prev_kprobe; }; -int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); int kprobe_fault_handler(struct pt_regs *regs, int trapnr); asmlinkage void __kprobes kprobe_trap(unsigned long trap_level, struct pt_regs *regs); diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h index a2e9317aad495..5939694dfb28d 100644 --- a/arch/x86/include/asm/kprobes.h +++ b/arch/x86/include/asm/kprobes.h @@ -113,8 +113,6 @@ struct kprobe_ctlblk { }; extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); -extern int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); extern int kprobe_int3_handler(struct pt_regs *regs); #else diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 85a64cb95d755..987911cdc90a2 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -450,6 +450,10 @@ int kprobe_get_kallsym(unsigned int symnum, unsigned long *value, char *type, int arch_kprobe_get_kallsym(unsigned int *symnum, unsigned long *value, char *type, char *sym); + +int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data); + #else /* !CONFIG_KPROBES: */ static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)