linux-kernel - [PATCH v2] arm64: vdso: remove commas between macro name and arguments

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Date:   Fri, 16 Apr 2021 13:35:21 -0700
From:   Jian Cai <jiancai@...gle.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     stable@...r.kernel.org, gregkh@...uxfoundation.org,
        sashal@...nel.org, ndesaulniers@...gle.com,
        natechancellor@...il.com, manojgupta@...gle.com,
        llozano@...gle.com, clang-built-linux@...glegroups.com,
        Jian Cai <jiancai@...gle.com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] arm64: vdso: remove commas between macro name and arguments

LLVM's integrated assembler does not support using commas separating
the name and arguments in .macro. However, only spaces are used in the
manual page. This replaces commas between macro names and the subsequent
arguments with space in calls to clock_gettime_return to make it
compatible with IAS.

Link:
https://sourceware.org/binutils/docs/as/Macro.html#Macro
https://github.com/ClangBuiltLinux/linux/issues/1349

Suggested-by: Ard Biesheuvel <ardb@...nel.org>
Signed-off-by: Jian Cai <jiancai@...gle.com>
---

Changes v1 -> v2:
  Keep the comma in the macro definition to be consistent with other
  definitions.

 arch/arm64/kernel/vdso/gettimeofday.S | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/vdso/gettimeofday.S b/arch/arm64/kernel/vdso/gettimeofday.S
index 856fee6d3512..b6faf8b5d1fe 100644
--- a/arch/arm64/kernel/vdso/gettimeofday.S
+++ b/arch/arm64/kernel/vdso/gettimeofday.S
@@ -227,7 +227,7 @@ realtime:
 	seqcnt_check fail=realtime
 	get_ts_realtime res_sec=x10, res_nsec=x11, \
 		clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9
-	clock_gettime_return, shift=1
+	clock_gettime_return shift=1
 
 	ALIGN
 monotonic:
@@ -250,7 +250,7 @@ monotonic:
 		clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9
 
 	add_ts sec=x10, nsec=x11, ts_sec=x3, ts_nsec=x4, nsec_to_sec=x9
-	clock_gettime_return, shift=1
+	clock_gettime_return shift=1
 
 	ALIGN
 monotonic_raw:
@@ -271,7 +271,7 @@ monotonic_raw:
 		clock_nsec=x15, nsec_to_sec=x9
 
 	add_ts sec=x10, nsec=x11, ts_sec=x13, ts_nsec=x14, nsec_to_sec=x9
-	clock_gettime_return, shift=1
+	clock_gettime_return shift=1
 
 	ALIGN
 realtime_coarse:
-- 
2.31.1.368.gbe11c130af-goog