On Sat, Jan 29, 2022 at 12:38:04PM +0100, Moses Christopher Bollavarapu wrote: It's a bit too many people in Cc list (I dropped more than a half in this reply). I would suggest to use my script [1] or look into it for a hint how to reduce it. [1]: https://github.com/andy-shev/home-bin-tools/blob/master/ge2maintainer.sh > There is a BIT(nr) macro available in Linux Kernel, > which does the same thing. In some cases it might fix a (theoretical) UB issue. > Example: BIT(7) = (1UL << 7) ... > + s_config->source.tpg.x_mask = BIT(4) - 1; > + s_config->source.tpg.y_mask = BIT(4) - 1; > + s_config->source.tpg.xy_mask = BIT(8) - 1; For masks you may use GENMASK(). ... > - irq = irq & 1 << INTR_IIR; > + irq = irq & BIT(INTR_IIR); It may be: irq &= BIT(...); ... > - irq = irq & 1 << INTR_IIR; > + irq = irq & BIT(INTR_IIR); Ditto. ... > - virt += (1 << PAGE_SHIFT); > + virt += BIT(PAGE_SHIFT); This is weird. Shouldn't be as simple as virt += PAGE_SIZE; ? ... > enum ia_css_sp_sleep_mode { > SP_DISABLE_SLEEP_MODE = 0, > - SP_SLEEP_AFTER_FRAME = 1 << 0, > - SP_SLEEP_AFTER_IRQ = 1 << 1 > + SP_SLEEP_AFTER_FRAME = BIT(0), > + SP_SLEEP_AFTER_IRQ = BIT(1) While at it, add a comma here. > }; ... > + IA_CSS_DEBUG_DUMP_ALL = BIT(14) /** Dump all device parameters */ Ditto. ... On top of this don't forget to add #include <linux/bits.h> to the modified header files. -- With Best Regards, Andy Shevchenko