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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/char/ipmi/ipmi_kcs_sm.c
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@@ -17,6 +17,8 @@
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  * that document.
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  */
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+#define DEBUG /* So dev_dbg() is always available. */
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+
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 #include <linux/kernel.h> /* For printk. */
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 #include <linux/module.h>
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 #include <linux/moduleparam.h>
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@@ -187,8 +189,8 @@
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 	(kcs->error_retries)++;
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 	if (kcs->error_retries > MAX_ERROR_RETRIES) {
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 		if (kcs_debug & KCS_DEBUG_ENABLE)
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-			printk(KERN_DEBUG "ipmi_kcs_sm: kcs hosed: %s\n",
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-			       reason);
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+			dev_dbg(kcs->io->dev, "ipmi_kcs_sm: kcs hosed: %s\n",
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+				reason);
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 		kcs->state = KCS_HOSED;
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 	} else {
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 		kcs->error0_timeout = jiffies + ERROR0_OBF_WAIT_JIFFIES;
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@@ -268,14 +270,16 @@
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 	if (size > MAX_KCS_WRITE_SIZE)
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 		return IPMI_REQ_LEN_EXCEEDED_ERR;
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-	if ((kcs->state != KCS_IDLE) && (kcs->state != KCS_HOSED))
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+	if ((kcs->state != KCS_IDLE) && (kcs->state != KCS_HOSED)) {
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+		dev_warn(kcs->io->dev, "KCS in invalid state %d\n", kcs->state);
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 		return IPMI_NOT_IN_MY_STATE_ERR;
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+	}
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 	if (kcs_debug & KCS_DEBUG_MSG) {
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-		printk(KERN_DEBUG "start_kcs_transaction -");
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+		dev_dbg(kcs->io->dev, "%s -", __func__);
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 		for (i = 0; i < size; i++)
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-			printk(" %02x", (unsigned char) (data [i]));
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-		printk("\n");
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+			pr_cont(" %02x", data[i]);
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+		pr_cont("\n");
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 	}
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 	kcs->error_retries = 0;
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 	memcpy(kcs->write_data, data, size);
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@@ -331,7 +335,8 @@
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 	status = read_status(kcs);
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 	if (kcs_debug & KCS_DEBUG_STATES)
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-		printk(KERN_DEBUG "KCS: State = %d, %x\n", kcs->state, status);
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+		dev_dbg(kcs->io->dev,
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+			"KCS: State = %d, %x\n", kcs->state, status);
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 	/* All states wait for ibf, so just do it here. */
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 	if (!check_ibf(kcs, status, time))