linux-kernel - [PATCH 1/2] nds32: Remove the redundant assignment

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Message-Id: <eccb279777573bea97149e7810b7827a53747095.1539781832.git.zongbox@gmail.com>
Date:   Wed, 17 Oct 2018 21:15:51 +0800
From:   Zong Li <zongbox@...il.com>
To:     green.hu@...il.com, deanbo422@...il.com,
        linux-kernel@...r.kernel.org
Cc:     greentime@...estech.com, Zong Li <zongbox@...il.com>,
        Zong Li <zong@...estech.com>
Subject: [PATCH 1/2] nds32: Remove the redundant assignment

For early version, the value of r2 register was used to display
a character on UART when error occurred. Remove these r2 assignments
because we no longer show the character.

Signed-off-by: Zong Li <zong@...estech.com>
---
 arch/nds32/kernel/head.S | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/nds32/kernel/head.S b/arch/nds32/kernel/head.S
index c5fdae1..1ce653d 100644
--- a/arch/nds32/kernel/head.S
+++ b/arch/nds32/kernel/head.S
@@ -130,14 +130,12 @@ _image_size_check:
          *
          * direct mapping is not supported now.
          */
-        li      $r2, 't'
         beqz    $r6, __error                 ! MMU_CFG.TBW = 0 is direct mappin
         addi    $r0, $r0, #0x2               ! MMU_CFG.TBS value -> meaning
         sll     $r0, $r6, $r0                ! entries = k-way * n-set
         mul     $r6, $r0, $r5                ! max size = entries * page size
         /* check kernel image size */
         la      $r3, (_end - PAGE_OFFSET)
-        li      $r2, 's'
         bgt     $r3, $r6, __error
 
 	li      $r2, #(PHYS_OFFSET + TLB_DATA_kernel_text_attr)
-- 
2.7.4