linux-kernel - [PATCH 1/6] x86: drop unneded members of struct cpuinfo

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Date:   Sun, 12 Feb 2017 22:12:07 +0100
From:   Mathias Krause <minipli@...glemail.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Borislav Petkov <bp@...en8.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jesper Nilsson <jesper.nilsson@...s.com>,
        Mikael Starvik <starvik@...s.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org,
        Mathias Krause <minipli@...glemail.com>,
        "H. Peter Anvin" <hpa@...ux.intel.com>
Subject: [PATCH 1/6] x86: drop unneded members of struct cpuinfo_x86

Those member serve no purpose -- not even fill padding for alignment or
such. So just get rid of them.

Cc: Borislav Petkov <bp@...en8.de>
Cc: H. Peter Anvin <hpa@...ux.intel.com>
Signed-off-by: Mathias Krause <minipli@...glemail.com>
---
 arch/x86/include/asm/processor.h |    7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index e6cfe7ba2d65..bf7cb1e00ce7 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -80,7 +80,7 @@ enum tlb_infos {
 
 /*
  *  CPU type and hardware bug flags. Kept separately for each CPU.
- *  Members of this structure are referenced in head.S, so think twice
+ *  Members of this structure are referenced in head_32.S, so think twice
  *  before touching them. [mj]
  */
 
@@ -91,11 +91,6 @@ struct cpuinfo_x86 {
 	__u8			x86_mask;
 #ifdef CONFIG_X86_32
 	char			wp_works_ok;	/* It doesn't on 386's */
-
-	/* Problems on some 486Dx4's and old 386's: */
-	char			rfu;
-	char			pad0;
-	char			pad1;
 #else
 	/* Number of 4K pages in DTLB/ITLB combined(in pages): */
 	int			x86_tlbsize;
-- 
1.7.10.4