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authorSudeep Holla <sudeep.holla@arm.com>2021-06-08 15:01:40 +0100
committerSudeep Holla <sudeep.holla@arm.com>2021-06-08 16:06:12 +0100
commit61832b35b4d953b2b4f6c668a3ad2a3013f40532 (patch)
tree189ff57a01df558b402aa962ca3650cf3322c53b /drivers/firmware/arm_scmi
parente30d91d4ffda0b30839bb5e7d2a123654de95045 (diff)
firmware: arm_scmi: Avoid multiple initialisations of hdr->protocol_id
Since the hdr->protocol_id is set from the scmi_protocol_instance handle just before the transfer, there is no need to initialise the same in scmi_xfer_get_init. Remove the unnecessary initialisations. Link: https://lore.kernel.org/r/20210608140140.2042257-1-sudeep.holla@arm.com Tested-by: Cristian Marussi <cristian.marussi@arm.com> Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/firmware/arm_scmi')
-rw-r--r--drivers/firmware/arm_scmi/driver.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 80010d3f5975..66e5e694be7d 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -432,9 +432,9 @@ static int do_xfer(const struct scmi_protocol_handle *ph,
struct scmi_chan_info *cinfo;
/*
- * Re-instate protocol id here from protocol handle so that cannot be
+ * Initialise protocol id now from protocol handle to avoid it being
* overridden by mistake (or malice) by the protocol code mangling with
- * the scmi_xfer structure.
+ * the scmi_xfer structure prior to this.
*/
xfer->hdr.protocol_id = pi->proto->id;
reinit_completion(&xfer->done);
@@ -509,11 +509,8 @@ static int do_xfer_with_response(const struct scmi_protocol_handle *ph,
struct scmi_xfer *xfer)
{
int ret, timeout = msecs_to_jiffies(SCMI_MAX_RESPONSE_TIMEOUT);
- const struct scmi_protocol_instance *pi = ph_to_pi(ph);
DECLARE_COMPLETION_ONSTACK(async_response);
- xfer->hdr.protocol_id = pi->proto->id;
-
xfer->async_done = &async_response;
ret = do_xfer(ph, xfer);
@@ -569,7 +566,6 @@ static int xfer_get_init(const struct scmi_protocol_handle *ph,
xfer->tx.len = tx_size;
xfer->rx.len = rx_size ? : info->desc->max_msg_size;
xfer->hdr.id = msg_id;
- xfer->hdr.protocol_id = pi->proto->id;
xfer->hdr.poll_completion = false;
*p = xfer;