diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ppc64/ppc32.h | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/include/asm-ppc64/ppc32.h b/include/asm-ppc64/ppc32.h index f4a36ea035f2..2897d3281b43 100644 --- a/include/asm-ppc64/ppc32.h +++ b/include/asm-ppc64/ppc32.h @@ -14,30 +14,6 @@ * 2 of the License, or (at your option) any later version. */ -/* Use this to get at 32-bit user passed pointers. */ -/* Things to consider: the low-level assembly stub does - srl x, 0, x for first four arguments, so if you have - pointer to something in the first four arguments, just - declare it as a pointer, not u32. On the other side, - arguments from 5th onwards should be declared as u32 - for pointers, and need AA() around each usage. - A() macro should be used for places where you e.g. - have some internal variable u32 and just want to get - rid of a compiler warning. AA() has to be used in - places where you want to convert a function argument - to 32bit pointer or when you e.g. access pt_regs - structure and want to consider 32bit registers only. - - - */ -#define A(__x) ((unsigned long)(__x)) -#define AA(__x) \ -({ unsigned long __ret; \ - __asm__ ("clrldi %0, %0, 32" \ - : "=r" (__ret) \ - : "0" (__x)); \ - __ret; \ -}) - /* These are here to support 32-bit syscalls on a 64-bit kernel. */ typedef struct compat_siginfo { |