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[209.85.208.46]) by smtp.gmail.com with ESMTPSA id un1-20020a170907cb8100b00a35cd148c7esm8785ejc.212.2024.02.01.09.48.51 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 01 Feb 2024 09:48:51 -0800 (PST) Received: by mail-ed1-f46.google.com with SMTP id 4fb4d7f45d1cf-55f2b0c5ae9so1612340a12.2 for ; Thu, 01 Feb 2024 09:48:51 -0800 (PST) X-Received: by 2002:aa7:d6d1:0:b0:55f:1a79:8b8d with SMTP id x17-20020aa7d6d1000000b0055f1a798b8dmr3775037edr.3.1706809731384; Thu, 01 Feb 2024 09:48:51 -0800 (PST) MIME-Version: 1.0 References: <20240201-exception_ip-v1-0-aa26ab3ee0b5@flygoat.com> In-Reply-To: <20240201-exception_ip-v1-0-aa26ab3ee0b5@flygoat.com> From: Linus Torvalds Date: Thu, 1 Feb 2024 09:48:34 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 0/3] Handle delay slot for extable lookup To: Jiaxun Yang Cc: Oleg Nesterov , Thomas Bogendoerfer , Andrew Morton , Ben Hutchings , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, Xi Ruoyao Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 0B81EC0003 X-Rspam-User: X-Stat-Signature: z1x8mt8inxqanicgndds5tc87jp46q3f X-Rspamd-Server: rspam01 X-HE-Tag: 1706809733-290007 X-HE-Meta: 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 qvtoiJyn 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, 1 Feb 2024 at 07:46, Jiaxun Yang wrote: > > arch/alpha/include/asm/ptrace.h | 1 + > arch/arc/include/asm/ptrace.h | 1 + > arch/arm/include/asm/ptrace.h | 1 + > arch/csky/include/asm/ptrace.h | 1 + > arch/hexagon/include/uapi/asm/ptrace.h | 1 + > arch/loongarch/include/asm/ptrace.h | 1 + > arch/m68k/include/asm/ptrace.h | 1 + > arch/microblaze/include/asm/ptrace.h | 3 ++- > arch/mips/include/asm/ptrace.h | 2 ++ > arch/mips/kernel/ptrace.c | 7 +++++++ > arch/nios2/include/asm/ptrace.h | 3 ++- > arch/openrisc/include/asm/ptrace.h | 1 + > arch/parisc/include/asm/ptrace.h | 1 + > arch/s390/include/asm/ptrace.h | 1 + > arch/sparc/include/asm/ptrace.h | 2 ++ > arch/um/include/asm/ptrace-generic.h | 1 + > mm/memory.c | 4 ++-- > 17 files changed, 28 insertions(+), 4 deletions(-) The only user right now is mm/memory.c, and it doesn't even include , but instead does the proper thing and includes So please make just do #ifndef exception_ip #define exception_ip(x) instruction_pointer(x) #endif and all those non-MIPS architecture updates should just go away, and the diffstat should look something like arch/mips/kernel/ptrace.c | 7 +++++++ include/linux/ptrace.h | 4 ++++ mm/memory.c | 4 ++-- instead. Linus