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MIPS: futex: Restore \n after sync instructions

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[ Upstream commit fd7710cb491f900eb63d2ce5aac0e682003e84e9 ]

Commit 3c1d3f097972 ("MIPS: futex: Emit Loongson3 sync workarounds
within asm") inadvertently removed the newlines following
__WEAK_LLSC_MB, which causes build failures for configurations in which
__WEAK_LLSC_MB expands to a sync instruction:

  {standard input}: Assembler messages:
  {standard input}:9346: Error: symbol `sync3' is already defined
  {standard input}:9380: Error: symbol `sync3' is already defined
  ...

Fix this by restoring the newlines to separate the sync instruction from
anything following it (such as the 3: label), preventing inadvertent
concatenation.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 3c1d3f097972 ("MIPS: futex: Emit Loongson3 sync workarounds within asm")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Paul Burton 2019-10-07 12:58:44 -07:00 • committed by Greg Kroah-Hartman
commit dc9d0a75ce
1 changed files with 3 additions and 3 deletions
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6
arch/mips/include/asm/futex.h
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@ -33,7 +33,7 @@
" .set arch=r4000 \n" \
"2: sc $1, %2 \n" \
" beqzl $1, 1b \n" \
__stringify(__WEAK_LLSC_MB) \
__stringify(__WEAK_LLSC_MB) " \n" \
"3: \n" \
" .insn \n" \
" .set pop \n" \
@ -63,7 +63,7 @@
" .set "MIPS_ISA_ARCH_LEVEL" \n" \
"2: "user_sc("$1", "%2")" \n" \
" beqz $1, 1b \n" \
__stringify(__WEAK_LLSC_MB) \
__stringify(__WEAK_LLSC_MB) " \n" \
"3: \n" \
" .insn \n" \
" .set pop \n" \
@ -148,7 +148,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
" .set arch=r4000 \n"
"2: sc $1, %2 \n"
" beqzl $1, 1b \n"
__stringify(__WEAK_LLSC_MB)
__stringify(__WEAK_LLSC_MB) " \n"
"3: \n"
" .insn \n"
" .set pop \n"