[PATCH] i2c: busses: Replace spin_lock_irqsave with spin_lock in hard IRQ
From: Weihang Li <hidden>
Date: 2021-02-08 10:52:30
There is no need to do irqsave and irqrestore in context of hard IRQ. Cc: Baruch Siach <baruch@tkos.co.il> Cc: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Weihang Li <redacted> --- drivers/i2c/busses/i2c-digicolor.c | 5 ++--- drivers/i2c/busses/i2c-jz4780.c | 5 ++--- 2 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/i2c/busses/i2c-digicolor.c b/drivers/i2c/busses/i2c-digicolor.c
index f67639d..60c838c 100644
--- a/drivers/i2c/busses/i2c-digicolor.c
+++ b/drivers/i2c/busses/i2c-digicolor.c@@ -160,12 +160,11 @@ static irqreturn_t dc_i2c_irq(int irq, void *dev_id) { struct dc_i2c *i2c = dev_id; int cmd_status = dc_i2c_cmd_status(i2c); - unsigned long flags; u8 addr_cmd; writeb_relaxed(1, i2c->regs + II_INTFLAG_CLEAR); - spin_lock_irqsave(&i2c->lock, flags); + spin_lock(&i2c->lock); if (cmd_status == II_CMD_STATUS_ACK_BAD || cmd_status == II_CMD_STATUS_ABORT) {
@@ -207,7 +206,7 @@ static irqreturn_t dc_i2c_irq(int irq, void *dev_id) } out: - spin_unlock_irqrestore(&i2c->lock, flags); + spin_unlock(&i2c->lock); return IRQ_HANDLED; }
diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c
index cb4a25e..8509c5f 100644
--- a/drivers/i2c/busses/i2c-jz4780.c
+++ b/drivers/i2c/busses/i2c-jz4780.c@@ -437,9 +437,8 @@ static irqreturn_t jz4780_i2c_irq(int irqno, void *dev_id) unsigned short intst; unsigned short intmsk; struct jz4780_i2c *i2c = dev_id; - unsigned long flags; - spin_lock_irqsave(&i2c->lock, flags); + spin_lock(&i2c->lock); intmsk = jz4780_i2c_readw(i2c, JZ4780_I2C_INTM); intst = jz4780_i2c_readw(i2c, JZ4780_I2C_INTST);
@@ -551,7 +550,7 @@ static irqreturn_t jz4780_i2c_irq(int irqno, void *dev_id) } done: - spin_unlock_irqrestore(&i2c->lock, flags); + spin_unlock(&i2c->lock); return IRQ_HANDLED; }
--
2.8.1
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