kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/arch/powerpc/include/asm/livepatch.h
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@@ -1,33 +1,17 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /*
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  * livepatch.h - powerpc-specific Kernel Live Patching Core
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  *
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  * Copyright (C) 2015-2016, SUSE, IBM Corp.
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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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 #ifndef _ASM_POWERPC_LIVEPATCH_H
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 #define _ASM_POWERPC_LIVEPATCH_H
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 #include <linux/module.h>
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 #include <linux/ftrace.h>
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+#include <linux/sched/task_stack.h>
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 #ifdef CONFIG_LIVEPATCH
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-static inline int klp_check_compiler_support(void)
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-{
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-	return 0;
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-}
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-
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 static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip)
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 {
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 	regs->nip = ip;
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@@ -43,13 +27,13 @@
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 	return ftrace_location_range(faddr, faddr + 16);
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 }
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-static inline void klp_init_thread_info(struct thread_info *ti)
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+static inline void klp_init_thread_info(struct task_struct *p)
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 {
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 	/* + 1 to account for STACK_END_MAGIC */
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-	ti->livepatch_sp = (unsigned long *)(ti + 1) + 1;
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+	task_thread_info(p)->livepatch_sp = end_of_stack(p) + 1;
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 }
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 #else
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-static void klp_init_thread_info(struct thread_info *ti) { }
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+static inline void klp_init_thread_info(struct task_struct *p) { }
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 #endif /* CONFIG_LIVEPATCH */
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 #endif /* _ASM_POWERPC_LIVEPATCH_H */