The block-write function of the core was not used because there was no
client-struct to use. However, in this case it seems apropriate to use a
temporary client struct. Because we are answering a request we recieved
when being a client ourselves. So, convert the code to use a temporary
client and use the block-write function of the I2C core.
Signed-off-by: Wolfram Sang <wsa+rene...@sang-engineering.com>
---
drivers/char/ipmi/ipmb_dev_int.c | 21 ++++++++-------------
1 file changed, 8 insertions(+), 13 deletions(-)
diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c
index 382b28f1cf2f..10d89886e5f3 100644
--- a/drivers/char/ipmi/ipmb_dev_int.c
+++ b/drivers/char/ipmi/ipmb_dev_int.c
@@ -137,7 +137,7 @@ static ssize_t ipmb_write(struct file *file, const char
__user *buf,
{
struct ipmb_dev *ipmb_dev = to_ipmb_dev(file);
u8 rq_sa, netf_rq_lun, msg_len;
- union i2c_smbus_data data;
+ struct i2c_client temp_client;
u8 msg[MAX_MSG_LEN];
ssize_t ret;
@@ -160,21 +160,16 @@ static ssize_t ipmb_write(struct file *file, const char
__user *buf,
}
/*
- * subtract rq_sa and netf_rq_lun from the length of the msg passed to
- * i2c_smbus_xfer
+ * subtract rq_sa and netf_rq_lun from the length of the msg. Fill the
+ * temporary client. Note that its use is an exception for IPMI.
*/
msg_len = msg[IPMB_MSG_LEN_IDX] - SMBUS_MSG_HEADER_LENGTH;
- if (msg_len > I2C_SMBUS_BLOCK_MAX)
- msg_len = I2C_SMBUS_BLOCK_MAX;
+ memcpy(&temp_client, ipmb_dev->client, sizeof(temp_client));
+ temp_client.addr = rq_sa;
- data.block[0] = msg_len;
- memcpy(&data.block[1], msg + SMBUS_MSG_IDX_OFFSET, msg_len);
- ret = i2c_smbus_xfer(ipmb_dev->client->adapter, rq_sa,
- ipmb_dev->client->flags,
- I2C_SMBUS_WRITE, netf_rq_lun,
- I2C_SMBUS_BLOCK_DATA, &data);
-
- return ret ? : count;
+ ret = i2c_smbus_write_block_data(&temp_client, netf_rq_lun, msg_len,
+ msg + SMBUS_MSG_IDX_OFFSET);
+ return ret < 0 ? ret : count;
}
static __poll_t ipmb_poll(struct file *file, poll_table *wait)
--
2.29.2
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