Re: [PATCH] remove raw pointer from printk message

From: Borislav Petkov
Date: Sat Feb 03 2018 - 04:52:13 EST


On Sat, Feb 03, 2018 at 01:48:19PM +0800, 540263207@xxxxxx wrote:
> From: qize wang <540263207@xxxxxx>
>
> The set_real_mode_mem function always print a raw kernel pointer to the kernel log
> at every boot. So just remove raw pointer from printk message.
>
> Reported-by: qize wang <wang_qize@xxxxxxxxxxxxxxxx>
> Cc: stable <stable@xxxxxxxxxxxxxxx>
> Signed-off-by: qize wang <540263207@xxxxxx>
> ---
> arch/x86/realmode/init.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
> index d101058..d76a138 100644
> --- a/arch/x86/realmode/init.c
> +++ b/arch/x86/realmode/init.c
> @@ -20,8 +20,8 @@ void __init set_real_mode_mem(phys_addr_t mem, size_t size)
> void *base = __va(mem);
>
> real_mode_header = (struct real_mode_header *) base;
> - printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n",
> - base, (unsigned long long)mem, size);
> + printk(KERN_DEBUG "Base memory trampoline at %llx size %zu\n",
> + (unsigned long long)mem, size);
> }
>
> void __init reserve_real_mode(void)
> --

No need, it gets hashed already:

[ 0.000000] Base memory trampoline at [ (ptrval)] 99000 size 24576

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Regards/Gruss,
Boris.

SUSE Linux GmbH, GF: Felix ImendÃrffer, Jane Smithard, Graham Norton, HRB 21284 (AG NÃrnberg)
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