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Wed, 16 Oct 2024 03:02:56 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Wed, 16 Oct 2024 07:02:36 +0000 From: "Arnd Bergmann" To: "Binbin Zhou" , "Arnd Bergmann" Cc: "Liam Girdwood" , "Mark Brown" , "Jaroslav Kysela" , "Takashi Iwai" , "Tang Bin" , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, "Binbin Zhou" Message-Id: <887501dc-6bcc-4f98-b472-af609c4c370b@app.fastmail.com> In-Reply-To: <52c7e318.434f.192941d2bee.Coremail.zhoubinbin@loongson.cn> References: <20241015150958.2294155-1-arnd@kernel.org> <52c7e318.434f.192941d2bee.Coremail.zhoubinbin@loongson.cn> Subject: Re: [PATCH] ASoC: loongson: make loongson-i2s.o a separate module Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Wed, Oct 16, 2024, at 06:56, =E5=91=A8=E5=BD=AC=E5=BD=AC wrote: >> -----Original Messages----- >> From: "Arnd Bergmann" >> Send time:Tuesday, 10/15/2024 23:09:54 >> To: "Liam Girdwood" , "Mark Brown" , "Jaroslav Kysela" , "Takashi Iwai" , "Binbin Zhou" >> Cc: "Arnd Bergmann" , tangbin , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org >> Subject: [PATCH] ASoC: loongson: make loongson-i2s.o a separate module >>=20 >> From: Arnd Bergmann >>=20 >> An object file should not be linked into multiple modules and/or >> vmlinux: >>=20 >> scripts/Makefile.build:221: /home/arnd/arm-soc/sound/soc/loongson/Mak= efile: loongson_i2s.o is added to multiple modules: snd-soc-loongson-i2s= -pci snd-soc-loongson-i2s-plat > > I would like to ask for some advice. > I didn't notice this warning before when I submitted the patch, is=20 > there some specific compilation option that needs to be turned on? I think this is one of the warnings that are currently only enabled when building with "make W=3D1". I have this enabled by default as I hope to make it a default warning soon. In general, I would recommend to build new driver code with W=3D1 before submitting.=20 Arnd