[Xen-changelog] [xen stable-4.8] ARM: arm64: activate atomic 64-bit accessors

[patchbot@xxxxxxx]

commit 31cbd18a8b9b04ff9b1997c1f41effa57af4a700
Author:     Andre Przywara <andre.przywara@xxxxxxx>
AuthorDate: Thu Mar 16 11:20:10 2017 +0000
Commit:     Julien Grall <julien.grall@xxxxxxx>
CommitDate: Fri Jun 14 15:45:59 2019 +0100

    ARM: arm64: activate atomic 64-bit accessors
    
    For some reason (probably because there was no user before) the 64-bit
    atomic access wrappers were commented out so far.
    As we will need them in the next patch, active (and fix) them now.
    
    Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
    Reviewed-by: Julien Grall <julien.grall@xxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/include/asm-arm/atomic.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/include/asm-arm/atomic.h b/xen/include/asm-arm/atomic.h
index 22a50361ec..df9de6a74a 100644
--- a/xen/include/asm-arm/atomic.h
+++ b/xen/include/asm-arm/atomic.h
@@ -53,9 +53,9 @@ build_atomic_write(write_u16_atomic, "h", WORD, uint16_t, "r")
 build_atomic_write(write_u32_atomic, "",  WORD, uint32_t, "r")
 build_atomic_write(write_int_atomic, "",  WORD, int, "r")
 
-#if 0 /* defined (CONFIG_ARM_64) */
-build_atomic_read(read_u64_atomic, "x", uint64_t, "=r")
-build_atomic_write(write_u64_atomic, "x", uint64_t, "r")
+#if defined (CONFIG_ARM_64)
+build_atomic_read(read_u64_atomic, "", "", uint64_t, "=r")
+build_atomic_write(write_u64_atomic, "", "", uint64_t, "r")
 #endif
 
 build_add_sized(add_u8_sized, "b", BYTE, uint8_t, "ri")
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.8

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