linux-kernel - Re: [PATCH 05/16] powerpc: Skip objtool from running on drivers/crypto/vmx/aesp8-ppc.o

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Message-ID: <fad7cc16-7dfb-de90-50e7-f2524525e1c3@csgroup.eu>
Date:   Wed, 10 Aug 2022 08:34:50 +0000
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Sathvika Vasireddy <sv@...ux.ibm.com>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
CC:     "jpoimboe@...hat.com" <jpoimboe@...hat.com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "aik@...abs.ru" <aik@...abs.ru>,
        "mpe@...erman.id.au" <mpe@...erman.id.au>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "rostedt@...dmis.org" <rostedt@...dmis.org>,
        "mbenes@...e.cz" <mbenes@...e.cz>,
        "npiggin@...il.com" <npiggin@...il.com>,
        "chenzhongjin@...wei.com" <chenzhongjin@...wei.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "naveen.n.rao@...ux.vnet.ibm.com" <naveen.n.rao@...ux.vnet.ibm.com>
Subject: Re: [PATCH 05/16] powerpc: Skip objtool from running on
 drivers/crypto/vmx/aesp8-ppc.o



Le 08/08/2022 à 13:48, Sathvika Vasireddy a écrit :
> With objtool enabled, below warnings are seen when trying to build:
> 
> drivers/crypto/vmx/aesp8-ppc.o: warning: objtool: aes_p8_set_encrypt_key+0x44: unannotated intra-function call
> 
> drivers/crypto/vmx/aesp8-ppc.o: warning: objtool: .text+0x2448: unannotated intra-function call
> 
> drivers/crypto/vmx/aesp8-ppc.o: warning: objtool: .text+0x2d68: unannotated intra-function call
> 
> Skip objtool from running on this file, as
> there are no calls to _mcount.

Why not fix it the same way as for other files ? Please explain.

> 
> Signed-off-by: Sathvika Vasireddy <sv@...ux.ibm.com>
> ---
>   drivers/crypto/vmx/Makefile | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile
> index 2560cfea1dec..7b41f0da6807 100644
> --- a/drivers/crypto/vmx/Makefile
> +++ b/drivers/crypto/vmx/Makefile
> @@ -9,3 +9,5 @@ targets += aesp8-ppc.S ghashp8-ppc.S
>   
>   $(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S: $(obj)/%.S: $(src)/%.pl FORCE
>   	$(call if_changed,perl)
> +
> +OBJECT_FILES_NON_STANDARD_aesp8-ppc.o := y