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| author | Artem Shimko <a.shimko.dev@gmail.com> | 2025-10-08 12:10:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-29 14:10:26 +0100 |
| commit | d0a896c5d1239eb4144803dc8a146d3e883cc973 (patch) | |
| tree | 1375c03962057c410eae8909f3cc1479c9fbf77e /drivers/firmware | |
| parent | e9a019f85775a96ad3849a6de00b12eb33d81804 (diff) | |
| download | linux-d0a896c5d1239eb4144803dc8a146d3e883cc973.tar.gz linux-d0a896c5d1239eb4144803dc8a146d3e883cc973.tar.bz2 linux-d0a896c5d1239eb4144803dc8a146d3e883cc973.zip | |
firmware: arm_scmi: Fix premature SCMI_XFER_FLAG_IS_RAW clearing in raw mode
[ Upstream commit 20b93a0088a595bceed4a026d527cbbac4e876c5 ]
The SCMI_XFER_FLAG_IS_RAW flag was being cleared prematurely in
scmi_xfer_raw_put() before the transfer completion was properly
acknowledged by the raw message handlers.
Move the clearing of SCMI_XFER_FLAG_IS_RAW and SCMI_XFER_FLAG_CHAN_SET
from scmi_xfer_raw_put() to __scmi_xfer_put() to ensure the flags remain
set throughout the entire raw message processing pipeline until the
transfer is returned to the free pool.
Fixes: 3095a3e25d8f ("firmware: arm_scmi: Add xfer helpers to provide raw access")
Suggested-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Artem Shimko <a.shimko.dev@gmail.com>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Message-Id: <20251008091057.1969260-1-a.shimko.dev@gmail.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/arm_scmi/driver.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 1cd15412024c..a8f2247feab9 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -805,6 +805,7 @@ __scmi_xfer_put(struct scmi_xfers_info *minfo, struct scmi_xfer *xfer) scmi_dec_count(info->dbg, XFERS_INFLIGHT); } + xfer->flags = 0; hlist_add_head(&xfer->node, &minfo->free_xfers); } spin_unlock_irqrestore(&minfo->xfer_lock, flags); @@ -823,8 +824,6 @@ void scmi_xfer_raw_put(const struct scmi_handle *handle, struct scmi_xfer *xfer) { struct scmi_info *info = handle_to_scmi_info(handle); - xfer->flags &= ~SCMI_XFER_FLAG_IS_RAW; - xfer->flags &= ~SCMI_XFER_FLAG_CHAN_SET; return __scmi_xfer_put(&info->tx_minfo, xfer); } |