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SubjectRe: [PATCH] x86, earlyprintk: Fix two 'defined but not used' compile warnings
On Tue, Mar 31, 2015 at 10:20:12PM +0100, Mark Einon wrote:
> Two static functions are only used if CONFIG_PCI is defined,so only build them
> if this is the case. Fixes the build warnings:
>
> arch/x86/kernel/early_printk.c:98:13: warning: ‘mem32_serial_out’ defined but not used [-Wunused-function]
> static void mem32_serial_out(unsigned long addr, int offset, int value)
> ^
> arch/x86/kernel/early_printk.c:105:21: warning: ‘mem32_serial_in’ defined but not used [-Wunused-function]
> static unsigned int mem32_serial_in(unsigned long addr, int offset)
> ^
> Signed-off-by: Mark Einon <mark.einon@gmail.com>
> ---
> arch/x86/kernel/early_printk.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
> index f85e3fb..6a69625 100644
> --- a/arch/x86/kernel/early_printk.c
> +++ b/arch/x86/kernel/early_printk.c
> @@ -95,6 +95,7 @@ static unsigned long early_serial_base = 0x3f8; /* ttyS0 */
> #define DLL 0 /* Divisor Latch Low */
> #define DLH 1 /* Divisor latch High */
>
> +#ifdef CONFIG_PCI
> static void mem32_serial_out(unsigned long addr, int offset, int value)
> {
> uint32_t *vaddr = (uint32_t *)addr;
> @@ -108,6 +109,7 @@ static unsigned int mem32_serial_in(unsigned long addr, int offset)
> /* shift implied by pointer type */
> return readl(vaddr + offset);
> }
> +#endif

I'm sceptical we ever build x86 with CONFIG_PCI disabled but whatever.

Instead of adding another #ifdef CONFIG_PCI, please move those two
functions right over early_pci_serial_init() inside the #ifdef
CONFIG_PCI there.

Thanks.

--
Regards/Gruss,
Boris.

ECO tip #101: Trim your mails when you reply.
--


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