linux-kernel - [tip: x86/entry] x86/idtentry: Remove stale comment

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Date:   Thu, 16 Jul 2020 10:48:14 -0000
From:   "tip-bot2 for Thomas Gleixner" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: x86/entry] x86/idtentry: Remove stale comment

The following commit has been merged into the x86/entry branch of tip:

Commit-ID:     790ce3b40017bbd759a3d81e23c05d42b3d34b90
Gitweb:        https://git.kernel.org/tip/790ce3b40017bbd759a3d81e23c05d42b3d34b90
Author:        Thomas Gleixner <tglx@...utronix.de>
AuthorDate:    Tue, 14 Jul 2020 16:01:52 +02:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Thu, 16 Jul 2020 12:44:26 +02:00

x86/idtentry: Remove stale comment

Stack switching for interrupt handlers happens in C now for both 64 and
32bit. Remove the stale comment which claims the contrary.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/include/asm/idtentry.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h
index 2293b44..50ea186 100644
--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -191,11 +191,9 @@ __visible noinstr void func(struct pt_regs *regs, unsigned long error_code)
  * to the function as error_code argument which needs to be truncated
  * to an u8 because the push is sign extending.
  *
- * On 64-bit idtentry_enter/exit() are invoked in the ASM entry code before
- * and after switching to the interrupt stack. On 32-bit this happens in C.
- *
  * irq_enter/exit_rcu() are invoked before the function body and the
- * KVM L1D flush request is set.
+ * KVM L1D flush request is set. Stack switching to the interrupt stack
+ * has to be done in the function body if necessary.
  */
 #define DEFINE_IDTENTRY_IRQ(func)					\
 static __always_inline void __##func(struct pt_regs *regs, u8 vector);	\