July 28, 2015
3:10 p.m.
On Tue 28 Jul, 2015 20:24 Kevin Wilson <wkevils@gmail.com> wrote:
Hi all, Is there a kernel API for handling 32 bits ? I see a macro like BIT(nr) http://lxr.free-electrons.com/source/include/linux/bitops.h#L6
#define BIT(nr) (1UL << (nr))
and also #define BIT_ULL(nr) (1ULL << (nr))
However, these macros are using 64 bit semantics, so if I will use them with 32 bits values the results will be wrong.
Any ideas ?
Regards, Kevin
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The macros don't do type checking so it will work for both 32-bit and 64-bit.