Re: InfiniBand-ocrdma: Delete unnecessary variable initialisations in 11 functions

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Jan 15, 2016 at 03:50:27PM +0100, SF Markus Elfring wrote:
> >> The variable "status" will be set to an appropriate value a bit later.
> >> Thus omit the explicit initialisation at the beginning.
> > 
> > What did you try to achieve by this patch?
> 
> I would like to optimise the affected source files a bit.
> Would you like to clarify any measurable effects around the implementation
> detail when various variables will only be initialised immediately
> before they will be read again?

Compiler will drop this variable initialization by itself because
there are no reads between this variable initialization and write.

I recommend you to take a look on the assembly code and ensure it
by yourself.

The proposed change won't affect performance at all.

> 
> Regards,
> Markus
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Yosemite Photos]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux