On Fri, Oct 14, 2011 at 2:51 PM, Prabhakar Lad <[email protected]>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 > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > Hi, 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
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