ipmi: Skip channel scan if channels are already marked ready

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>
Message-ID: <20250930074239.2353-4-guojinhui.liam@bytedance.com>
Signed-off-by: Corey Minyard <corey@minyard.net>

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 0a886399f9dafb2b09134aa553cb96b896f34513..3f48fc6ab596d3c78f338fec45a3e8b3630960d3 100644 (file)
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -3450,6 +3450,10 @@ 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)) {