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Re: [Qemu-trivial] [Qemu-devel] [PATCH][v4 1/3] debugcon: fix always pri


From: Andreas Färber
Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH][v4 1/3] debugcon: fix always print "addr=0x0, val=0x0" bug when use DEBUG_DEBUGCON
Date: Thu, 23 May 2013 15:05:12 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130329 Thunderbird/17.0.5

Am 23.05.2013 08:58, schrieb liguang:
> when use DEBUG_DEBUGCON, screen spits:
> debugcon: write addr=0x0000 val=0x00
> Rdebugcon: write addr=0x0000 val=0x00
> udebugcon: write addr=0x0000 val=0x00
> ndebugcon: write addr=0x0000 val=0x00
> ndebugcon: write addr=0x0000 val=0x00
> idebugcon: write addr=0x0000 val=0x00
> ndebugcon: write addr=0x0000 val=0x00
> gdebugcon: write addr=0x0000 val=0x00
>  debugcon: write addr=0x0000 val=0x00
> odebugcon: write addr=0x0000 val=0x00
> pdebugcon: write addr=0x0000 val=0x00
> tdebugcon: write addr=0x0000 val=0x00
> idebugcon: write addr=0x0000 val=0x00
> odebugcon: write addr=0x0000 val=0x00
> ndebugcon: write addr=0x0000 val=0x00
>  debugcon: write addr=0x0000 val=0x00
> rdebugcon: write addr=0x0000 val=0x00
> odebugcon: write addr=0x0000 val=0x00
> mdebugcon: write addr=0x0000 val=0x00
>  debugcon: write addr=0x0000 val=0x00
> adebugcon: write addr=0x0000 val=0x00
> tdebugcon: write addr=0x0000 val=0x00
>  debugcon: write addr=0x0000 val=0x00
> 
> Oh, that's wrong, val is not always be 0.
> this bug caused by lack of length modifier
> for specifier 'x'.
> 
> Signed-off-by: liguang <address@hidden>
> ---
> v4: fix misleading subject

As I've reminded before, please prepend a cover letter (0/x) when
sending more than once patch!

> ---
>  hw/char/debugcon.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/hw/char/debugcon.c b/hw/char/debugcon.c
> index 02c9577..7e41c90 100644
> --- a/hw/char/debugcon.c
> +++ b/hw/char/debugcon.c
> @@ -55,7 +55,7 @@ static void debugcon_ioport_write(void *opaque, hwaddr 
> addr, uint64_t val,
>      unsigned char ch = val;
>  
>  #ifdef DEBUG_DEBUGCON
> -    printf("debugcon: write addr=0x%04x val=0x%02x\n", addr, val);
> +    printf("debugcon: write addr=0x%04" HWADDR_PRIx " val=0x%02x\n", addr, 
> val);

Please merge 3/3 with this patch - the changes are pretty obviously
correct, so you can shorten the commit message by dropping the example
output.

Andreas

>  #endif
>  
>      qemu_chr_fe_write(s->chr, &ch, 1);
> 


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