linux-kernel - [PATCH] x86/fpu: remove unused macros

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Date:   Tue, 21 Jan 2020 16:50:11 +0800
From:   Alex Shi <alex.shi@...ux.alibaba.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Cyrill Gorcunov <gorcunov@...il.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@...el.com>,
        Aubrey Li <aubrey.li@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] x86/fpu: remove unused macros

NR_VALID_PKRU_BITS/PKRU_VALID_MASK are never used after it was
introduced. So better to remove them.

Signed-off-by: Alex Shi <alex.shi@...ux.alibaba.com>
Cc: Thomas Gleixner <tglx@...utronix.de> 
Cc: Ingo Molnar <mingo@...hat.com> 
Cc: Borislav Petkov <bp@...en8.de> 
Cc: "H. Peter Anvin" <hpa@...or.com> 
Cc: x86@...nel.org 
Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de> 
Cc: Cyrill Gorcunov <gorcunov@...il.com> 
Cc: Dave Hansen <dave.hansen@...el.com> 
Cc: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@...el.com> 
Cc: Aubrey Li <aubrey.li@...ux.intel.com> 
Cc: linux-kernel@...r.kernel.org 
---
 arch/x86/kernel/fpu/xstate.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index fa31470bbf24..73c3e2e72a88 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -899,8 +899,6 @@ const void *get_xsave_field_ptr(int xfeature_nr)
 
 #ifdef CONFIG_ARCH_HAS_PKEYS
 
-#define NR_VALID_PKRU_BITS (CONFIG_NR_PROTECTION_KEYS * 2)
-#define PKRU_VALID_MASK (NR_VALID_PKRU_BITS - 1)
 /*
  * This will go out and modify PKRU register to set the access
  * rights for @pkey to @init_val.
-- 
1.8.3.1