linux-kernel - [PATCH] ARC: [plat-eznps] add missing atomic_fetch

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Message-ID: <1474263280-26203-1-git-send-email-noamca@mellanox.com>
Date:   Mon, 19 Sep 2016 08:34:40 +0300
From:   Noam Camus <noamca@...lanox.com>
To:     <vgupta@...opsys.com>
CC:     <peterz@...radead.org>, <mingo@...nel.org>,
        <linux-snps-arc@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, "Noam Camus" <noamca@...lanox.com>
Subject: [PATCH] ARC: [plat-eznps] add missing atomic_fetch_xxx operations

From: Noam Camus <noamca@...lanox.com>

Build brekeage since last changes to generic atomic operations.
Added couple of missing macros which are now mandatory

Signed-off-by: Noam Camus <noamca@...lanox.com>
---
 arch/arc/include/asm/atomic.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h
index 4e3c1b6..4f732bf 100644
--- a/arch/arc/include/asm/atomic.h
+++ b/arch/arc/include/asm/atomic.h
@@ -284,6 +284,7 @@ static inline int atomic_fetch_##op(int i, atomic_t *v)			\
 ATOMIC_OPS(add, +=, CTOP_INST_AADD_DI_R2_R2_R3)
 #define atomic_sub(i, v) atomic_add(-(i), (v))
 #define atomic_sub_return(i, v) atomic_add_return(-(i), (v))
+#define atomic_fetch_sub(i, v) atomic_fetch_add(-(i), (v))
 
 #undef ATOMIC_OPS
 #define ATOMIC_OPS(op, c_op, asm_op)					\
@@ -292,6 +293,7 @@ ATOMIC_OPS(add, +=, CTOP_INST_AADD_DI_R2_R2_R3)
 
 ATOMIC_OPS(and, &=, CTOP_INST_AAND_DI_R2_R2_R3)
 #define atomic_andnot(mask, v) atomic_and(~(mask), (v))
+#define atomic_fetch_andnot(mask, v) atomic_fetch_and(~(mask), (v))
 ATOMIC_OPS(or, |=, CTOP_INST_AOR_DI_R2_R2_R3)
 ATOMIC_OPS(xor, ^=, CTOP_INST_AXOR_DI_R2_R2_R3)
 
-- 
1.7.1