linux-kernel - Re: linux-next: build failure after merge of most trees

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Date:   Fri, 23 Jun 2017 16:43:23 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     David Miller <davem@...emloft.net>
Cc:     npiggin@...il.com, linux-next@...r.kernel.org,
        linux-kernel@...r.kernel.org, yamada.masahiro@...ionext.com,
        amodra@...il.com
Subject: Re: linux-next: build failure after merge of most trees

Hi all,

On Thu, 22 Jun 2017 10:56:48 -0400 (EDT) David Miller <davem@...emloft.net> wrote:
>
> Feel free to merge it into your series:
> 
> ====================
> sparc64: Use indirect calls in hamming weight stubs.
> 
> Otherwise, depending upon link order, the branch relocation
> limits could be exceeded.
> 
> Signed-off-by: David S. Miller <davem@...emloft.net>
> 
> diff --git a/arch/sparc/lib/hweight.S b/arch/sparc/lib/hweight.S
> index f9985f1..d21cf20 100644
> --- a/arch/sparc/lib/hweight.S
> +++ b/arch/sparc/lib/hweight.S
> @@ -4,9 +4,9 @@
>  	.text
>  	.align	32
>  ENTRY(__arch_hweight8)
> -	ba,pt	%xcc, __sw_hweight8
> +	sethi	%hi(__sw_hweight8), %g1
> +	jmpl	%g1 + %lo(__sw_hweight8), %g0
>  	 nop
> -	nop
>  ENDPROC(__arch_hweight8)
>  EXPORT_SYMBOL(__arch_hweight8)
>  	.section	.popc_3insn_patch, "ax"
> @@ -17,9 +17,9 @@ EXPORT_SYMBOL(__arch_hweight8)
>  	.previous
>  
>  ENTRY(__arch_hweight16)
> -	ba,pt	%xcc, __sw_hweight16
> +	sethi	%hi(__sw_hweight16), %g1
> +	jmpl	%g1 + %lo(__sw_hweight16), %g0
>  	 nop
> -	nop
>  ENDPROC(__arch_hweight16)
>  EXPORT_SYMBOL(__arch_hweight16)
>  	.section	.popc_3insn_patch, "ax"
> @@ -30,9 +30,9 @@ EXPORT_SYMBOL(__arch_hweight16)
>  	.previous
>  
>  ENTRY(__arch_hweight32)
> -	ba,pt	%xcc, __sw_hweight32
> +	sethi	%hi(__sw_hweight32), %g1
> +	jmpl	%g1 + %lo(__sw_hweight32), %g0
>  	 nop
> -	nop
>  ENDPROC(__arch_hweight32)
>  EXPORT_SYMBOL(__arch_hweight32)
>  	.section	.popc_3insn_patch, "ax"
> @@ -43,9 +43,9 @@ EXPORT_SYMBOL(__arch_hweight32)
>  	.previous
>  
>  ENTRY(__arch_hweight64)
> -	ba,pt	%xcc, __sw_hweight64
> +	sethi	%hi(__sw_hweight16), %g1
> +	jmpl	%g1 + %lo(__sw_hweight16), %g0
>  	 nop
> -	nop
>  ENDPROC(__arch_hweight64)
>  EXPORT_SYMBOL(__arch_hweight64)
>  	.section	.popc_3insn_patch, "ax"

I added that to linux-next today and it fixed the build problem.

-- 
Cheers,
Stephen Rothwell