Re: [PATCH] printf: add support for printing symbolic error codes

[Rasmus Villemoes]

On 30/08/2019 23.53, Joe Perches wrote:
> 
>> diff --git a/lib/vsprintf.c b/lib/vsprintf.c
> []
>> @@ -2178,8 +2204,6 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
>>  		return flags_string(buf, end, ptr, spec, fmt);
>>  	case 'O':
>>  		return kobject_string(buf, end, ptr, spec, fmt);
>> -	case 'x':
>> -		return pointer_string(buf, end, ptr, spec);
>>  	}
>>  
>>  	/* default is to _not_ leak addresses, hash before printing */
> 
> why remove this?
> 

The handling of %px is moved above the test for ptr being an ERR_PTR, so
that %px, ptr continues to be (roughly) equivalent to %08lx, (long)ptr.

Rasmus