On Sun, 3 Jan 2016, SF Markus Elfring wrote:
> >> Pass the address of the data structure element "time" directly in calls > >> of the function "rtc_update_irq" instead of an extra initialisation > >> for one local variable at the beginning. > > > > Why is it better? > > I suggest to refer to the data item "rtc_data->rtc" directly because > the variable "rtc" was read only in two if branches. > Does it make sense then to reduce the variable allocation? No. That is the job of the compiler. For a local variable whose address is never taken, the compiler can easily detect its live region, and place the initialization in an optimal way. julia -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
