powerpc/inst: Reduce casts in get_user_instr()

Declare __gui_ptr as 'u32 *' instead of casting it at each use to
'unsigned int *' (which is an equivalent type).

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Use u32 * instead of unsigned int *]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/2c2123998e05535d08ba03a96ea1eea921d06a86.1621516826.git.christophe.leroy@csgroup.eu

diff --git a/arch/powerpc/include/asm/inst.h b/arch/powerpc/include/asm/inst.h
index 887ef15..530583a 100644 (file)
--- a/arch/powerpc/include/asm/inst.h
+++ b/arch/powerpc/include/asm/inst.h
@@ -9,16 +9,15 @@
 #define ___get_user_instr(gu_op, dest, ptr)                            \
 ({                                                                     \
        long __gui_ret = 0;                                             \
-       unsigned long __gui_ptr = (unsigned long)ptr;                   \
+       u32 __user *__gui_ptr = (u32 __user *)ptr;                      \
        struct ppc_inst __gui_inst;                                     \
        unsigned int __prefix, __suffix;                                \
                                                                        \
        __chk_user_ptr(ptr);                                            \
-       __gui_ret = gu_op(__prefix, (unsigned int __user *)__gui_ptr);  \
+       __gui_ret = gu_op(__prefix, __gui_ptr);                         \
        if (__gui_ret == 0) {                                           \
                if ((__prefix >> 26) == OP_PREFIX) {                    \
-                       __gui_ret = gu_op(__suffix,                     \
-                               (unsigned int __user *)__gui_ptr + 1);  \
+                       __gui_ret = gu_op(__suffix, __gui_ptr + 1);     \
                        __gui_inst = ppc_inst_prefix(__prefix,          \
                                                     __suffix);         \
                } else {                                                \