linux-kernel - [PATCH] ipmi: ssif_bmc: Refrain warning printout when aborting request

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Message-Id: <20231130072849.3075741-1-quan@os.amperecomputing.com>
Date:   Thu, 30 Nov 2023 14:28:49 +0700
From:   Quan Nguyen <quan@...amperecomputing.com>
To:     Corey Minyard <minyard@....org>,
        openipmi-developer@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, openbmc@...ts.ozlabs.org,
        Open Source Submission <patches@...erecomputing.com>
Cc:     Phong Vo <phong@...amperecomputing.com>,
        Thang Nguyen <thang@...amperecomputing.com>,
        Quan Nguyen <quan@...amperecomputing.com>
Subject: [PATCH] ipmi: ssif_bmc: Refrain warning printout when aborting request

Ssif_bmc driver discards the current request if there is no response
provided until the new request comes, during that period, there are
multiple warning printed out as below:

"ipmi-ssif-host 0-0010: Warn: on_stop_event unexpected SLAVE STOP in state=SSIF_ABORTING
 ipmi-ssif-host 0-0010: Warn: on_stop_event unexpected SLAVE STOP in state=SSIF_ABORTING
 ipmi-ssif-host 0-0010: Warn: on_stop_event unexpected SLAVE STOP in state=SSIF_ABORTING
 ..."

This commit fixes the issue by refrain from printing that warning

Fixes: dd2bc5cc9e25 ("ipmi: ssif_bmc: Add SSIF BMC driver")
Signed-off-by: Quan Nguyen <quan@...amperecomputing.com>
---
 drivers/char/ipmi/ssif_bmc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/char/ipmi/ssif_bmc.c b/drivers/char/ipmi/ssif_bmc.c
index 56346fb32872..2857e7341d65 100644
--- a/drivers/char/ipmi/ssif_bmc.c
+++ b/drivers/char/ipmi/ssif_bmc.c
@@ -718,13 +718,15 @@ static void on_stop_event(struct ssif_bmc_ctx *ssif_bmc, u8 *val)
 {
 	if (ssif_bmc->state == SSIF_READY ||
 	    ssif_bmc->state == SSIF_START ||
-	    ssif_bmc->state == SSIF_SMBUS_CMD ||
-	    ssif_bmc->state == SSIF_ABORTING) {
+	    ssif_bmc->state == SSIF_SMBUS_CMD) {
 		dev_warn(&ssif_bmc->client->dev,
 			 "Warn: %s unexpected SLAVE STOP in state=%s\n",
 			 __func__, state_to_string(ssif_bmc->state));
 		ssif_bmc->state = SSIF_READY;
 
+	} else if (ssif_bmc->state == SSIF_ABORTING) {
+		ssif_bmc->state = SSIF_READY;
+
 	} else if (ssif_bmc->state == SSIF_REQ_RECVING) {
 		if (validate_request_part(ssif_bmc)) {
 			process_request_part(ssif_bmc);
-- 
2.35.1