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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/samples/livepatch/livepatch-sample.c
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@@ -1,20 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * livepatch-sample.c - Kernel Live Patching Sample Module
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  *
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  * Copyright (C) 2014 Seth Jennings <sjenning@redhat.com>
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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 2
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- * of the License, or (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, see <http://www.gnu.org/licenses/>.
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  */
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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@@ -69,22 +57,11 @@
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 static int livepatch_init(void)
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 {
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-	int ret;
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-
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-	ret = klp_register_patch(&patch);
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-	if (ret)
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-		return ret;
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-	ret = klp_enable_patch(&patch);
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-	if (ret) {
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-		WARN_ON(klp_unregister_patch(&patch));
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-		return ret;
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-	}
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-	return 0;
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+	return klp_enable_patch(&patch);
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 }
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 static void livepatch_exit(void)
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 {
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-	WARN_ON(klp_unregister_patch(&patch));
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 }
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 module_init(livepatch_init);