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Re: [PATCH] sched/core: don't include asm/mmu_context from drivers

From Steven Rostedt <rostedt@goodmis.org>
Newsgroups linux.kernel
Subject Re: [PATCH] sched/core: don't include asm/mmu_context from drivers
Date 2016-04-29 15:50 +0200
Message-ID <rtgXV-6T4-23@gated-at.bofh.it> (permalink)
References <rtcrg-2XJ-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, 29 Apr 2016 10:52:32 +0200
Arnd Bergmann <arnd@arndb.de> wrote:

> This reverts the earlier fix attempt and works around the problem
> by including both linux/mmu_context.h and asm/mmu_context.h from
> kernel/sched/core.c. This is not a good solution but seems less
> hacky than the alternatives.

What about simply not compiling finish_arch_post_lock_switch() when
building modules?

(untested, not compiled or anything)

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
diff --git a/arch/arm/include/asm/mmu_context.h b/arch/arm/include/asm/mmu_context.h
index fa5b42d44985..3f22d1b6bac8 100644
--- a/arch/arm/include/asm/mmu_context.h
+++ b/arch/arm/include/asm/mmu_context.h
@@ -66,6 +66,7 @@ static inline void check_and_switch_context(struct mm_struct *mm,
 		cpu_switch_mm(mm->pgd, mm);
 }
 
+#ifndef MODULE
 #define finish_arch_post_lock_switch \
 	finish_arch_post_lock_switch
 static inline void finish_arch_post_lock_switch(void)
@@ -87,6 +88,7 @@ static inline void finish_arch_post_lock_switch(void)
 		preempt_enable_no_resched();
 	}
 }
+#endif /* !MODULE */
 
 #endif	/* CONFIG_MMU */
 

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Thread

[PATCH] sched/core: don't include asm/mmu_context from drivers Arnd Bergmann <arnd@arndb.de> - 2016-04-29 11:00 +0200
  Re: [PATCH] sched/core: don't include asm/mmu_context from drivers Steven Rostedt <rostedt@goodmis.org> - 2016-04-29 15:50 +0200
    Re: [PATCH] sched/core: don't include asm/mmu_context from drivers Arnd Bergmann <arnd@arndb.de> - 2016-04-29 17:40 +0200
      Re: [PATCH] sched/core: don't include asm/mmu_context from drivers Andy Lutomirski <luto@amacapital.net> - 2016-04-29 21:00 +0200

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