Revert "MIPS: LD/SD o32 macro GAS fix update"

This reverts commit 97475f8b42e83be2966aa2d70ab9c98477701c53 (lmo) /
82b89152f00f7ad17844d5614d5011e8d7944ac9 (kernel.org) [MIPS: LD/SD o32
macro GAS fix update].

Turns out this patch is producing many build errors with gcc 4.2.  Based
on further testing with a test case extracted from the build errors found
further build errors and suboptimal generation even in violation of the
"R" constraint.

To make matters worse, the binutils changes also don't work quite as
intended so revert this patch for now.

1 files changed, 2 insertions, 10 deletions

diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index b04e4de5dd2e..a58f22998a86 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -329,14 +329,10 @@ static inline void pfx##write##bwlq(type val,				\
                         "dsrl32 %L0, %L0, 0"                    "\n\t"  \
                         "dsll32 %M0, %M0, 0"                    "\n\t"  \
                         "or     %L0, %L0, %M0"                  "\n\t"  \
-                        ".set   push"                           "\n\t"  \
-                        ".set   noreorder"                      "\n\t"  \
-                        ".set   nomacro"                        "\n\t"  \
                         "sd     %L0, %2"                        "\n\t"  \
-                        ".set   pop"                            "\n\t"  \
                         ".set   mips0"                          "\n"    \
                         : "=r" (__tmp)                                  \
-                        : "0" (__val), "R" (*__mem));                   \
+                        : "0" (__val), "m" (*__mem));                   \
                 if (irq)                                                \
                         local_irq_restore(__flags);                     \
         } else                                                          \
@@ -359,16 +355,12 @@ static inline type pfx##read##bwlq(const volatile void __iomem *mem)	\
                         local_irq_save(__flags);                        \
                 __asm__ __volatile__(                                   \
                         ".set   mips3"          "\t\t# __readq" "\n\t"  \
-                        ".set   push"                           "\n\t"  \
-                        ".set   noreorder"                      "\n\t"  \
-                        ".set   nomacro"                        "\n\t"  \
                         "ld     %L0, %1"                        "\n\t"  \
-                        ".set   pop"                            "\n\t"  \
                         "dsra32 %M0, %L0, 0"                    "\n\t"  \
                         "sll    %L0, %L0, 0"                    "\n\t"  \
                         ".set   mips0"                          "\n"    \
                         : "=r" (__val)                                  \
-                        : "R" (*__mem));                                \
+                        : "m" (*__mem));                                \
                 if (irq)                                                \
                         local_irq_restore(__flags);                     \
         } else {                                                        \