On Fri, Oct 14, 2011 at 3:14 PM, rohan puri <rohan.puri15@xxxxxxxxx> wrote:
Hi,On Fri, Oct 14, 2011 at 2:51 PM, Prabhakar Lad <prabhakar.csengg@xxxxxxxxx> wrote:
_______________________________________________Hi everyone,
I had question in want eradicate volatile from here: for example:
#define 0x01c40800
if ((volatile void *)pllbase == (volatile void *)DAVINCI_PLL_CNTRL0_BASE) /*HERE*/
return 8;
else
return pll_div(pllbase, PLLC_PREDIV);
Thanks.
Regards
--Prabhakar
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volatile keyword is make use of to enforce compiler that not to optimize the code that contains this qualifier.
In this case maybe any of the two compared values could be changed in an unknowing way to the compiler which are to be considered and no optimization is required, hence volatile keyword is made use of.
Regards,
Rohan Puri
Hi,
I think Prabhakar is referring to Documentation/volatile-considered-harmful.txt in the
Linux kernel source code and is hence trying to avoid volatile.. Am I right Prabhakar?
Regards,
Srivatsa S. Bhat
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