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Subject: Re: [PATCH 07/19] powerpc/powermac: Make some functions static
To:     Mathieu Malaterre <malat@debian.org>,
        Michael Ellerman <mpe@ellerman.id.au>
Cc:     linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org,
        Paul Mackerras <paulus@samba.org>,
        linuxppc-dev@lists.ozlabs.org
References: <20180322202007.23088-1-malat@debian.org>
 <20180322202007.23088-8-malat@debian.org>
From:   christophe leroy <christophe.leroy@c-s.fr>
Message-ID: <b7bd65f6-af40-1f35-a0be-3f9cc810db7f@c-s.fr>
Date:   Fri, 23 Mar 2018 12:05:13 +0100
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Le 22/03/2018 à 21:19, Mathieu Malaterre a écrit :
> These functions can all be static, make it so. Fix warnings treated as
> errors with W=1:
> 
>    arch/powerpc/platforms/powermac/pci.c:1022:6: error: no previous prototype for ‘pmac_pci_fixup_ohci’ [-Werror=missing-prototypes]
>    arch/powerpc/platforms/powermac/pci.c:1057:6: error: no previous prototype for ‘pmac_pci_fixup_cardbus’ [-Werror=missing-prototypes]
>    arch/powerpc/platforms/powermac/pci.c:1094:6: error: no previous prototype for ‘pmac_pci_fixup_pciata’ [-Werror=missing-prototypes]
> 
> Also add gcc attribute unused to fix a warning treated as error with W=1:
> 
>    arch/powerpc/platforms/powermac/pci.c:784:19: error: variable ‘has_address’ set but not used [-Werror=unused-but-set-variable]
>    arch/powerpc/platforms/powermac/pci.c:907:22: error: variable ‘ht’ set but not used [-Werror=unused-but-set-variable]
> 
> Signed-off-by: Mathieu Malaterre <malat@debian.org>
> ---
>   arch/powerpc/platforms/powermac/pci.c | 10 +++++-----
>   1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
> index 0b8174a79993..d3b9818dd880 100644
> --- a/arch/powerpc/platforms/powermac/pci.c
> +++ b/arch/powerpc/platforms/powermac/pci.c
> @@ -781,7 +781,7 @@ static int __init pmac_add_bridge(struct device_node *dev)
>   	struct resource rsrc;
>   	char *disp_name;
>   	const int *bus_range;
> -	int primary = 1, has_address = 0;
> +	int primary = 1, has_address __maybe_unused = 0;

YOu could remove it completely, it is never used

>   
>   	DBG("Adding PCI host bridge %pOF\n", dev);
>   
> @@ -904,7 +904,7 @@ static int pmac_pci_root_bridge_prepare(struct pci_host_bridge *bridge)
>   void __init pmac_pci_init(void)
>   {
>   	struct device_node *np, *root;
> -	struct device_node *ht = NULL;
> +	struct device_node *ht __maybe_unused = NULL;

Shouldn't ht be enclosed into #ifdef CONFIG_PPC64 instead ?

Christophe

>   
>   	pci_set_flags(PCI_CAN_SKIP_ISA_ALIGN);
>   
> @@ -1019,7 +1019,7 @@ static bool pmac_pci_enable_device_hook(struct pci_dev *dev)
>   	return true;
>   }
>   
> -void pmac_pci_fixup_ohci(struct pci_dev *dev)
> +static void pmac_pci_fixup_ohci(struct pci_dev *dev)
>   {
>   	struct device_node *node = pci_device_to_OF_node(dev);
>   
> @@ -1054,7 +1054,7 @@ void __init pmac_pcibios_after_init(void)
>   	}
>   }
>   
> -void pmac_pci_fixup_cardbus(struct pci_dev* dev)
> +static void pmac_pci_fixup_cardbus(struct pci_dev *dev)
>   {
>   	if (!machine_is(powermac))
>   		return;
> @@ -1091,7 +1091,7 @@ void pmac_pci_fixup_cardbus(struct pci_dev* dev)
>   
>   DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_ANY_ID, pmac_pci_fixup_cardbus);
>   
> -void pmac_pci_fixup_pciata(struct pci_dev* dev)
> +static void pmac_pci_fixup_pciata(struct pci_dev *dev)
>   {
>          u8 progif = 0;
>   
> 

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