Commit 870897a5 authored Feb 07, 2008 by Jason Uhlenkott Committed by Linus Torvalds Feb 07, 2008

drivers/edac/i3000: document type promotion



By popular request, add a comment documenting the implicit type promotion
here.

Signed-off-by: Jason Uhlenkott <juhlenko@akamai.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 7ed31e0f

drivers/edac/i3000_edac.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -44,6 +44,13 @@
		*/
		#define I3000_DEAP_GRAIN (1 << 7)

		/*
		* Helper functions to decode the DEAP/EDEAP hardware registers.
		*
		* The type promotion here is deliberate; we're deriving an
		* unsigned long pfn and offset from hardware regs which are u8/u32.
		*/

		static inline unsigned long deap_pfn(u8 edeap, u32 deap)
		{
		deap >>= PAGE_SHIFT;