From 0390bdd4bf0cbe234d639b1891739bf5645137ee Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 12 Jan 2021 16:12:30 +0100 Subject: i2c: smbus: improve naming in i2c_smbus_xfer_emulated() This may be just taste, but I think 'nmsgs' is way more readable than a generic 'num' variable. Also, fix spaces around operators while here. Signed-off-by: Wolfram Sang Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core-smbus.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'drivers/i2c/i2c-core-smbus.c') diff --git a/drivers/i2c/i2c-core-smbus.c b/drivers/i2c/i2c-core-smbus.c index 6cda46913d89..d2d32c0fd8c3 100644 --- a/drivers/i2c/i2c-core-smbus.c +++ b/drivers/i2c/i2c-core-smbus.c @@ -323,7 +323,7 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, */ unsigned char msgbuf0[I2C_SMBUS_BLOCK_MAX+3]; unsigned char msgbuf1[I2C_SMBUS_BLOCK_MAX+2]; - int num = read_write == I2C_SMBUS_READ ? 2 : 1; + int nmsgs = read_write == I2C_SMBUS_READ ? 2 : 1; u8 partial_pec = 0; int status; struct i2c_msg msg[2] = { @@ -349,13 +349,13 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, /* Special case: The read/write field is used as data */ msg[0].flags = flags | (read_write == I2C_SMBUS_READ ? I2C_M_RD : 0); - num = 1; + nmsgs = 1; break; case I2C_SMBUS_BYTE: if (read_write == I2C_SMBUS_READ) { /* Special case: only a read! */ msg[0].flags = I2C_M_RD | flags; - num = 1; + nmsgs = 1; } break; case I2C_SMBUS_BYTE_DATA: @@ -376,7 +376,7 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, } break; case I2C_SMBUS_PROC_CALL: - num = 2; /* Special case */ + nmsgs = 2; /* Special case */ read_write = I2C_SMBUS_READ; msg[0].len = 3; msg[1].len = 2; @@ -403,7 +403,7 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, } break; case I2C_SMBUS_BLOCK_PROC_CALL: - num = 2; /* Another special case */ + nmsgs = 2; /* Another special case */ read_write = I2C_SMBUS_READ; if (data->block[0] > I2C_SMBUS_BLOCK_MAX) { dev_err(&adapter->dev, @@ -447,28 +447,28 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, if (wants_pec) { /* Compute PEC if first message is a write */ if (!(msg[0].flags & I2C_M_RD)) { - if (num == 1) /* Write only */ + if (nmsgs == 1) /* Write only */ i2c_smbus_add_pec(&msg[0]); else /* Write followed by read */ partial_pec = i2c_smbus_msg_pec(0, &msg[0]); } /* Ask for PEC if last message is a read */ - if (msg[num-1].flags & I2C_M_RD) - msg[num-1].len++; + if (msg[nmsgs - 1].flags & I2C_M_RD) + msg[nmsgs - 1].len++; } - status = __i2c_transfer(adapter, msg, num); + status = __i2c_transfer(adapter, msg, nmsgs); if (status < 0) goto cleanup; - if (status != num) { + if (status != nmsgs) { status = -EIO; goto cleanup; } status = 0; /* Check PEC if last message is a read */ - if (wants_pec && (msg[num-1].flags & I2C_M_RD)) { - status = i2c_smbus_check_pec(partial_pec, &msg[num-1]); + if (wants_pec && (msg[nmsgs - 1].flags & I2C_M_RD)) { + status = i2c_smbus_check_pec(partial_pec, &msg[nmsgs - 1]); if (status < 0) goto cleanup; } -- cgit v1.2.3