linux-kernel - Re: [PATCH] arch: powerpc: kernel: vio.c: Remove unused function

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Message-ID: <1418102997.527.3.camel@concordia>
Date:	Tue, 09 Dec 2014 16:29:57 +1100
From:	Michael Ellerman <mpe@...erman.id.au>
To:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Alistair Popple <alistair@...ple.id.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Daniel Walter <dwalter@...gle.com>,
	Li Zhong <zhong@...ux.vnet.ibm.com>,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH] arch: powerpc: kernel: vio.c:  Remove unused function

On Sun, 2014-12-07 at 23:31 +0100, Rickard Strandqvist wrote:
> Remove the function cmo_high_show() that is not used anywhere.
> 
> This was partially found by using a static code analysis program called cppcheck.
> 
> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
> ---
>  arch/powerpc/kernel/vio.c |    5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
> index 5bfdab9..11657d2 100644
> --- a/arch/powerpc/kernel/vio.c
> +++ b/arch/powerpc/kernel/vio.c
> @@ -1032,11 +1032,6 @@ viobus_cmo_pool_rd_attr(reserve, size);
>  viobus_cmo_pool_rd_attr(excess, size);
>  viobus_cmo_pool_rd_attr(excess, free);
>  
> -static ssize_t cmo_high_show(struct bus_type *bt, char *buf)
> -{
> -	return sprintf(buf, "%lu\n", vio_cmo.high);
> -}


from ../arch/powerpc/kernel/vio.c:17:
../arch/powerpc/kernel/vio.c:1046:20: error: 'cmo_high_show' undeclared here (not in a function)
static BUS_ATTR_RW(cmo_high);
^
../include/linux/sysfs.h:76:10: note: in definition of macro '__ATTR'
.show = _show,      \
^
../include/linux/device.h:53:42: note: in expansion of macro '__ATTR_RW'
struct bus_attribute bus_attr_##_name = __ATTR_RW(_name)
^
../arch/powerpc/kernel/vio.c:1046:8: note: in expansion of macro 'BUS_ATTR_RW'
static BUS_ATTR_RW(cmo_high);
^

cheers


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