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From:   =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= <bjorn@kernel.org>
To:     Song Shuai <suagrfillet@gmail.com>, paul.walmsley@sifive.com,
        palmer@dabbelt.com, aou@eecs.berkeley.edu, rostedt@goodmis.org,
        mhiramat@kernel.org, mark.rutland@arm.com, guoren@kernel.org,
        e.shatokhin@yadro.com
Cc:     linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-trace-kernel@vger.kernel.org,
        Song Shuai <suagrfillet@gmail.com>
Subject: Re: [PATCH V8 1/4] riscv: select
 FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
In-Reply-To: <20230324033342.3177979-2-suagrfillet@gmail.com>
References: <20230324033342.3177979-1-suagrfillet@gmail.com>
 <20230324033342.3177979-2-suagrfillet@gmail.com>
Date:   Wed, 10 May 2023 09:09:10 +0200
Message-ID: <87a5ycfysp.fsf@all.your.base.are.belong.to.us>
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Song Shuai <suagrfillet@gmail.com> writes:

> In RISC-V, -fpatchable-function-entry option is used to support
> dynamic ftrace in this commit afc76b8b8011 ("riscv: Using
> PATCHABLE_FUNCTION_ENTRY instead of MCOUNT"). So recordmcount
> don't have to be called to create the __mcount_loc section before
> the vmlinux linking.
>
> Here selects FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY to tell
> Makefile not to run recordmcount.
>
> Link: https://lore.kernel.org/linux-riscv/CAAYs2=3Dj3Eak9vU6xbAw0zPuoh00r=
h8v5C2U3fePkokZFibWs2g@mail.gmail.com/T/#t
> Link: https://lore.kernel.org/linux-riscv/Y4jtfrJt+%2FQ5nMOz@spud/
> Signed-off-by: Song Shuai <suagrfillet@gmail.com>
> Tested-by: Guo Ren <guoren@kernel.org>
> Signed-off-by: Guo Ren <guoren@kernel.org>

Acked-by: Bj=C3=B6rn T=C3=B6pel <bjorn@rivosinc.com>