hexagon: parenthesize registers in asm predicates

Hexagon requires that register predicates in assembly be parenthesized.

Link: https://github.com/ClangBuiltLinux/linux/issues/754
Link: http://lkml.kernel.org/r/20191209222956.239798-3-ndesaulniers@google.com
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Suggested-by: Sid Manning <sidneym@codeaurora.org>
Acked-by: Brian Cain <bcain@codeaurora.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Tuowen Zhao <ztuowen@gmail.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alexios Zavras <alexios.zavras@intel.com>
Cc: Allison Randal <allison@lohutok.net>
Cc: Will Deacon <will@kernel.org>
Cc: Richard Fontana <rfontana@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/hexagon/include/asm/atomic.h b/arch/hexagon/include/asm/atomic.h
index 12cd923..0231d69 100644 (file)
--- a/arch/hexagon/include/asm/atomic.h
+++ b/arch/hexagon/include/asm/atomic.h
@@ -91,7 +91,7 @@ static inline void atomic_##op(int i, atomic_t *v)                    \
                "1:     %0 = memw_locked(%1);\n"                        \
                "       %0 = "#op "(%0,%2);\n"                          \
                "       memw_locked(%1,P3)=%0;\n"                       \
-               "       if !P3 jump 1b;\n"                              \
+               "       if (!P3) jump 1b;\n"                            \
                : "=&r" (output)                                        \
                : "r" (&v->counter), "r" (i)                            \
                : "memory", "p3"                                        \
@@ -107,7 +107,7 @@ static inline int atomic_##op##_return(int i, atomic_t *v)          \
                "1:     %0 = memw_locked(%1);\n"                        \
                "       %0 = "#op "(%0,%2);\n"                          \
                "       memw_locked(%1,P3)=%0;\n"                       \
-               "       if !P3 jump 1b;\n"                              \
+               "       if (!P3) jump 1b;\n"                            \
                : "=&r" (output)                                        \
                : "r" (&v->counter), "r" (i)                            \
                : "memory", "p3"                                        \
@@ -124,7 +124,7 @@ static inline int atomic_fetch_##op(int i, atomic_t *v)                     \
                "1:     %0 = memw_locked(%2);\n"                        \
                "       %1 = "#op "(%0,%3);\n"                          \
                "       memw_locked(%2,P3)=%1;\n"                       \
-               "       if !P3 jump 1b;\n"                              \
+               "       if (!P3) jump 1b;\n"                            \
                : "=&r" (output), "=&r" (val)                           \
                : "r" (&v->counter), "r" (i)                            \
                : "memory", "p3"                                        \
@@ -173,7 +173,7 @@ static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
                "       }"
                "       memw_locked(%2, p3) = %1;"
                "       {"
-               "               if !p3 jump 1b;"
+               "               if (!p3) jump 1b;"
                "       }"
                "2:"
                : "=&r" (__oldval), "=&r" (tmp)

diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h
index 47384b0..71429f7 100644 (file)
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -38,7 +38,7 @@ static inline int test_and_clear_bit(int nr, volatile void *addr)
        "1:     R12 = memw_locked(R10);\n"
        "       { P0 = tstbit(R12,R11); R12 = clrbit(R12,R11); }\n"
        "       memw_locked(R10,P1) = R12;\n"
-       "       {if !P1 jump 1b; %0 = mux(P0,#1,#0);}\n"
+       "       {if (!P1) jump 1b; %0 = mux(P0,#1,#0);}\n"
        : "=&r" (oldval)
        : "r" (addr), "r" (nr)
        : "r10", "r11", "r12", "p0", "p1", "memory"
@@ -62,7 +62,7 @@ static inline int test_and_set_bit(int nr, volatile void *addr)
        "1:     R12 = memw_locked(R10);\n"
        "       { P0 = tstbit(R12,R11); R12 = setbit(R12,R11); }\n"
        "       memw_locked(R10,P1) = R12;\n"
-       "       {if !P1 jump 1b; %0 = mux(P0,#1,#0);}\n"
+       "       {if (!P1) jump 1b; %0 = mux(P0,#1,#0);}\n"
        : "=&r" (oldval)
        : "r" (addr), "r" (nr)
        : "r10", "r11", "r12", "p0", "p1", "memory"
@@ -88,7 +88,7 @@ static inline int test_and_change_bit(int nr, volatile void *addr)
        "1:     R12 = memw_locked(R10);\n"
        "       { P0 = tstbit(R12,R11); R12 = togglebit(R12,R11); }\n"
        "       memw_locked(R10,P1) = R12;\n"
-       "       {if !P1 jump 1b; %0 = mux(P0,#1,#0);}\n"
+       "       {if (!P1) jump 1b; %0 = mux(P0,#1,#0);}\n"
        : "=&r" (oldval)
        : "r" (addr), "r" (nr)
        : "r10", "r11", "r12", "p0", "p1", "memory"
@@ -223,7 +223,7 @@ static inline int ffs(int x)
        int r;
 
        asm("{ P0 = cmp.eq(%1,#0); %0 = ct0(%1);}\n"
-               "{ if P0 %0 = #0; if !P0 %0 = add(%0,#1);}\n"
+               "{ if (P0) %0 = #0; if (!P0) %0 = add(%0,#1);}\n"
                : "=&r" (r)
                : "r" (x)
                : "p0");

diff --git a/arch/hexagon/include/asm/cmpxchg.h b/arch/hexagon/include/asm/cmpxchg.h
index 6091322..92b8a02 100644 (file)
--- a/arch/hexagon/include/asm/cmpxchg.h
+++ b/arch/hexagon/include/asm/cmpxchg.h
@@ -30,7 +30,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
        __asm__ __volatile__ (
        "1:     %0 = memw_locked(%1);\n"    /*  load into retval */
        "       memw_locked(%1,P0) = %2;\n" /*  store into memory */
-       "       if !P0 jump 1b;\n"
+       "       if (!P0) jump 1b;\n"
        : "=&r" (retval)
        : "r" (ptr), "r" (x)
        : "memory", "p0"

diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index cb63521..0191f7c 100644 (file)
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -16,7 +16,7 @@
            /* For example: %1 = %4 */ \
            insn \
        "2: memw_locked(%3,p2) = %1;\n" \
-       "   if !p2 jump 1b;\n" \
+       "   if (!p2) jump 1b;\n" \
        "   %1 = #0;\n" \
        "3:\n" \
        ".section .fixup,\"ax\"\n" \
@@ -84,10 +84,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 oldval,
        "1: %1 = memw_locked(%3)\n"
        "   {\n"
        "      p2 = cmp.eq(%1,%4)\n"
-       "      if !p2.new jump:NT 3f\n"
+       "      if (!p2.new) jump:NT 3f\n"
        "   }\n"
        "2: memw_locked(%3,p2) = %5\n"
-       "   if !p2 jump 1b\n"
+       "   if (!p2) jump 1b\n"
        "3:\n"
        ".section .fixup,\"ax\"\n"
        "4: %0 = #%6\n"

diff --git a/arch/hexagon/include/asm/spinlock.h b/arch/hexagon/include/asm/spinlock.h
index bfe07d8..ef103b7 100644 (file)
--- a/arch/hexagon/include/asm/spinlock.h
+++ b/arch/hexagon/include/asm/spinlock.h
@@ -30,9 +30,9 @@ static inline void arch_read_lock(arch_rwlock_t *lock)
        __asm__ __volatile__(
                "1:     R6 = memw_locked(%0);\n"
                "       { P3 = cmp.ge(R6,#0); R6 = add(R6,#1);}\n"
-               "       { if !P3 jump 1b; }\n"
+               "       { if (!P3) jump 1b; }\n"
                "       memw_locked(%0,P3) = R6;\n"
-               "       { if !P3 jump 1b; }\n"
+               "       { if (!P3) jump 1b; }\n"
                :
                : "r" (&lock->lock)
                : "memory", "r6", "p3"
@@ -46,7 +46,7 @@ static inline void arch_read_unlock(arch_rwlock_t *lock)
                "1:     R6 = memw_locked(%0);\n"
                "       R6 = add(R6,#-1);\n"
                "       memw_locked(%0,P3) = R6\n"
-               "       if !P3 jump 1b;\n"
+               "       if (!P3) jump 1b;\n"
                :
                : "r" (&lock->lock)
                : "memory", "r6", "p3"
@@ -61,7 +61,7 @@ static inline int arch_read_trylock(arch_rwlock_t *lock)
        __asm__ __volatile__(
                "       R6 = memw_locked(%1);\n"
                "       { %0 = #0; P3 = cmp.ge(R6,#0); R6 = add(R6,#1);}\n"
-               "       { if !P3 jump 1f; }\n"
+               "       { if (!P3) jump 1f; }\n"
                "       memw_locked(%1,P3) = R6;\n"
                "       { %0 = P3 }\n"
                "1:\n"
@@ -78,9 +78,9 @@ static inline void arch_write_lock(arch_rwlock_t *lock)
        __asm__ __volatile__(
                "1:     R6 = memw_locked(%0)\n"
                "       { P3 = cmp.eq(R6,#0);  R6 = #-1;}\n"
-               "       { if !P3 jump 1b; }\n"
+               "       { if (!P3) jump 1b; }\n"
                "       memw_locked(%0,P3) = R6;\n"
-               "       { if !P3 jump 1b; }\n"
+               "       { if (!P3) jump 1b; }\n"
                :
                : "r" (&lock->lock)
                : "memory", "r6", "p3"
@@ -94,7 +94,7 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
        __asm__ __volatile__(
                "       R6 = memw_locked(%1)\n"
                "       { %0 = #0; P3 = cmp.eq(R6,#0);  R6 = #-1;}\n"
-               "       { if !P3 jump 1f; }\n"
+               "       { if (!P3) jump 1f; }\n"
                "       memw_locked(%1,P3) = R6;\n"
                "       %0 = P3;\n"
                "1:\n"
@@ -117,9 +117,9 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
        __asm__ __volatile__(
                "1:     R6 = memw_locked(%0);\n"
                "       P3 = cmp.eq(R6,#0);\n"
-               "       { if !P3 jump 1b; R6 = #1; }\n"
+               "       { if (!P3) jump 1b; R6 = #1; }\n"
                "       memw_locked(%0,P3) = R6;\n"
-               "       { if !P3 jump 1b; }\n"
+               "       { if (!P3) jump 1b; }\n"
                :
                : "r" (&lock->lock)
                : "memory", "r6", "p3"
@@ -139,7 +139,7 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
        __asm__ __volatile__(
                "       R6 = memw_locked(%1);\n"
                "       P3 = cmp.eq(R6,#0);\n"
-               "       { if !P3 jump 1f; R6 = #1; %0 = #0; }\n"
+               "       { if (!P3) jump 1f; R6 = #1; %0 = #0; }\n"
                "       memw_locked(%1,P3) = R6;\n"
                "       %0 = P3;\n"
                "1:\n"

diff --git a/arch/hexagon/kernel/vm_entry.S b/arch/hexagon/kernel/vm_entry.S
index 12242c2..4023fdb 100644 (file)
--- a/arch/hexagon/kernel/vm_entry.S
+++ b/arch/hexagon/kernel/vm_entry.S
@@ -369,7 +369,7 @@ ret_from_fork:
                R26.L = #LO(do_work_pending);
                R0 = #VM_INT_DISABLE;
        }
-       if P0 jump check_work_pending
+       if (P0) jump check_work_pending
        {
                R0 = R25;
                callr R24