disable cpu isolcpus

hc

2023-12-09 958e46acc8e900e8569dd467c1af9b8d2d019394

 kernel/arch/powerpc/platforms/powernv/opal-imc.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
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3
  * OPAL IMC interface detection driver
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4
  * Supported on POWERNV platform
..
..
@@ -5,11 +6,6 @@
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6
  * Copyright	(C) 2017 Madhavan Srinivasan, IBM Corporation.
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7
  *		(C) 2017 Anju T Sudhakar, IBM Corporation.
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8
  *		(C) 2017 Hemant K Shaw, IBM Corporation.
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version
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- * 2 of the License, or later version.
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9
  */
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 #include <linux/kernel.h>
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11
 #include <linux/platform_device.h>
..
..
@@ -39,11 +35,10 @@
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35
 }
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 DEFINE_DEBUGFS_ATTRIBUTE(fops_imc_x64, imc_mem_get, imc_mem_set, "0x%016llx\n");
41
37
 
42
-static struct dentry *imc_debugfs_create_x64(const char *name, umode_t mode,
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-					     struct dentry *parent, u64  *value)
38
+static void imc_debugfs_create_x64(const char *name, umode_t mode,
39
+				   struct dentry *parent, u64  *value)
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40
 {
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-	return debugfs_create_file_unsafe(name, mode, parent,
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-					  value, &fops_imc_x64);
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+	debugfs_create_file_unsafe(name, mode, parent, value, &fops_imc_x64);
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42
 }
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43
 
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 /*
..
..
@@ -63,9 +58,6 @@
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58
 
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 	imc_debugfs_parent = debugfs_create_dir("imc", powerpc_debugfs_root);
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60
 
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-	if (!imc_debugfs_parent)
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-		return;
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-
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61
 	if (of_property_read_u32(node, "cb_offset", &cb_offset))
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62
 		cb_offset = IMC_CNTL_BLK_OFFSET;
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63
 
..
..
@@ -73,21 +65,15 @@
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65
 		loc = (u64)(ptr->vbase) + cb_offset;
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 		imc_mode_addr = (u64 *)(loc + IMC_CNTL_BLK_MODE_OFFSET);
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67
 		sprintf(mode, "imc_mode_%d", (u32)(ptr->id));
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-		if (!imc_debugfs_create_x64(mode, 0600, imc_debugfs_parent,
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-					    imc_mode_addr))
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-			goto err;
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+		imc_debugfs_create_x64(mode, 0600, imc_debugfs_parent,
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+				       imc_mode_addr);
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70
 
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 		imc_cmd_addr = (u64 *)(loc + IMC_CNTL_BLK_CMD_OFFSET);
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 		sprintf(cmd, "imc_cmd_%d", (u32)(ptr->id));
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-		if (!imc_debugfs_create_x64(cmd, 0600, imc_debugfs_parent,
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-					    imc_cmd_addr))
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-			goto err;
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+		imc_debugfs_create_x64(cmd, 0600, imc_debugfs_parent,
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+				       imc_cmd_addr);
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75
 		ptr++;
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76
 	}
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-	return;
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-
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-err:
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-	debugfs_remove_recursive(imc_debugfs_parent);
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77
 }
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78
 
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 /*
..
..
@@ -281,6 +267,9 @@
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 		case IMC_TYPE_THREAD:
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 			domain = IMC_DOMAIN_THREAD;
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 			break;
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+		case IMC_TYPE_TRACE:
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+			domain = IMC_DOMAIN_TRACE;
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+			break;
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 		default:
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 			pr_warn("IMC Unknown Device type \n");
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 			domain = -1;