RE: [RFC][PATCH] powerpc: Use the #address-cells information to parsememory/reg

2011-06-06 Thread David Laight
  Changed the add_usable_mem_property() to accept FILE* fp instead of
int fd,
  as most of the other users of read_memory_region_limits() deals with
FILE*.
 
  Signed-off-by: Suzuki K. Poulose suz...@in.ibm.com
 
 Could you please let me know your thoughts/comments about this patch ?

Is the change to use 'FILE *' actually progress?
I'd have thought that the randomly aligned read/lseek system calls
that this allows to happen are not desirable for anything that
isn't a true file.

I'd also suggest that the sizeof's should be applied to the
actual type of the variable being read/written, not arbitrarily
'long' or 'int', and this probably ought to be some fixed size type.

David


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Re: [RFC][PATCH] powerpc: Use the #address-cells information to parsememory/reg

2011-06-06 Thread Suzuki Poulose

On 06/06/11 14:30, David Laight wrote:

Changed the add_usable_mem_property() to accept FILE* fp instead of

int fd,

as most of the other users of read_memory_region_limits() deals with

FILE*.


Signed-off-by: Suzuki K. Poulosesuz...@in.ibm.com


Could you please let me know your thoughts/comments about this patch ?


Is the change to use 'FILE *' actually progress?
I'd have thought that the randomly aligned read/lseek system calls
that this allows to happen are not desirable for anything that
isn't a true file.

I will revert the other users back to 'fd'


I'd also suggest that the sizeof's should be applied to the
actual type of the variable being read/written, not arbitrarily
'long' or 'int', and this probably ought to be some fixed size type.

I have used 'unsigned long'(for word sized values) or 'unsigned long long'
(for double words) just to make sure we get the right values. Is this OK ?

Thanks
Suzuki
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