From: Jinhui Guo <guojinhui.liam@bytedance.com>
To: corey@minyard.net
Cc: openipmi-developer@lists.sourceforge.net,
linux-kernel@vger.kernel.org, guojinhui.liam@bytedance.com
Subject: [PATCH v2 3/3] ipmi: Skip channel scan if channels are already marked ready
Date: Tue, 30 Sep 2025 15:42:39 +0800 [thread overview]
Message-ID: <20250930074239.2353-4-guojinhui.liam@bytedance.com> (raw)
In-Reply-To: <20250930074239.2353-1-guojinhui.liam@bytedance.com>
Channels remain static unless the BMC firmware changes.
Therefore, rescanning is unnecessary while they are marked
ready and no BMC update has occurred.
Signed-off-by: Jinhui Guo <guojinhui.liam@bytedance.com>
---
drivers/char/ipmi/ipmi_msghandler.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 536484b8e52d..db8ef2e46488 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -3439,6 +3439,10 @@ static int __scan_channels(struct ipmi_smi *intf,
intf->channels_ready = false;
}
+ /* Skip channel scan if channels are already marked ready */
+ if (intf->channels_ready)
+ return 0;
+
if (ipmi_version_major(id) > 1
|| (ipmi_version_major(id) == 1
&& ipmi_version_minor(id) >= 5)) {
--
2.20.1
next prev parent reply other threads:[~2025-09-30 7:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-30 7:42 [PATCH v2 0/3] ipmi: Close the race between __scan_channels() and deliver_response() Jinhui Guo
2025-09-30 7:42 ` [PATCH v2 1/3] ipmi: Fix " Jinhui Guo
2025-09-30 7:42 ` [PATCH v2 2/3] ipmi: Fix __scan_channels() failing to rescan channels Jinhui Guo
2025-09-30 7:42 ` Jinhui Guo [this message]
2025-10-03 15:43 ` [PATCH v2 0/3] ipmi: Close the race between __scan_channels() and deliver_response() Corey Minyard
2025-12-05 8:01 ` Jinhui Guo
2025-12-05 13:05 ` Corey Minyard
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