Sam Ravnborg wrote:
And in linux/const.h we have yet another variant: /* Some constant macros are used in both assembler and * C code. Therefore we cannot annotate them always with * 'UL' and other type specifiers unilaterally. We * use the following macros to deal with this. * * Similarly, _AT() will cast an expression with a type in C, but * leave it unchanged in asm. */ #ifdef __ASSEMBLY__ #define _AC(X,Y) X #define _AT(T,X) X #else #define __AC(X,Y) (X##Y) #define _AC(X,Y) __AC(X,Y) #define _AT(T,X) ((T)(X)) #endif Not as typestrict as hpa's and arm's version but used in a few placed already.
These, unfortunately, don't solve the issue of gcc warnings, and you don't want to make them paste ULL on before the cast, since I think they're used with non-simple constants.
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