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From: Akira Tsukamoto <akira.tsukamoto@gmail.com>
To: Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Guenter Roeck <linux@roeck-us.net>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Albert Ou <aou@eecs.berkeley.edu>,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/4] riscv: __asm_copy_to-from_user: Remove unnecessary size check
Date: Tue, 20 Jul 2021 17:52:36 +0900	[thread overview]
Message-ID: <94d4ec76-a987-348e-71ce-473511d44787@gmail.com> (raw)
In-Reply-To: <37097718-c472-025a-2058-55667badc5b9@gmail.com>


Clean up:

The size of 0 will be evaluated in the next step. Not
required here.

Signed-off-by: Akira Tsukamoto <akira.tsukamoto@gmail.com>
---
 arch/riscv/lib/uaccess.S | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/riscv/lib/uaccess.S b/arch/riscv/lib/uaccess.S
index 279876821969..54d497a03164 100644
--- a/arch/riscv/lib/uaccess.S
+++ b/arch/riscv/lib/uaccess.S
@@ -30,7 +30,6 @@ ENTRY(__asm_copy_from_user)
 	 * t0 - end of uncopied dst
 	 */
 	add	t0, a0, a2
-	bgtu	a0, t0, 5f
 
 	/*
 	 * Use byte copy only if too small.
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Akira Tsukamoto <akira.tsukamoto@gmail.com>
To: Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Guenter Roeck <linux@roeck-us.net>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Albert Ou <aou@eecs.berkeley.edu>,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/4] riscv: __asm_copy_to-from_user: Remove unnecessary size check
Date: Tue, 20 Jul 2021 17:52:36 +0900	[thread overview]
Message-ID: <94d4ec76-a987-348e-71ce-473511d44787@gmail.com> (raw)
In-Reply-To: <37097718-c472-025a-2058-55667badc5b9@gmail.com>


Clean up:

The size of 0 will be evaluated in the next step. Not
required here.

Signed-off-by: Akira Tsukamoto <akira.tsukamoto@gmail.com>
---
 arch/riscv/lib/uaccess.S | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/riscv/lib/uaccess.S b/arch/riscv/lib/uaccess.S
index 279876821969..54d497a03164 100644
--- a/arch/riscv/lib/uaccess.S
+++ b/arch/riscv/lib/uaccess.S
@@ -30,7 +30,6 @@ ENTRY(__asm_copy_from_user)
 	 * t0 - end of uncopied dst
 	 */
 	add	t0, a0, a2
-	bgtu	a0, t0, 5f
 
 	/*
 	 * Use byte copy only if too small.
-- 
2.17.1


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  parent reply	other threads:[~2021-07-20  8:57 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-20  8:49 [PATCH 0/4] __asm_copy_to-from_user: Fixes Akira Tsukamoto
2021-07-20  8:49 ` Akira Tsukamoto
2021-07-20  8:50 ` [PATCH 1/4] riscv: __asm_copy_to-from_user: Fix: overrun copy Akira Tsukamoto
2021-07-20  8:50   ` Akira Tsukamoto
2021-07-20  8:51 ` [PATCH 2/4] riscv: __asm_copy_to-from_user: Fix: fail on RV32 Akira Tsukamoto
2021-07-20  8:51   ` Akira Tsukamoto
2021-07-20  9:49   ` Geert Uytterhoeven
2021-07-20  9:49     ` Geert Uytterhoeven
2021-07-20 10:18     ` Akira Tsukamoto
2021-07-20 10:18       ` Akira Tsukamoto
2021-07-20  8:52 ` Akira Tsukamoto [this message]
2021-07-20  8:52   ` [PATCH 3/4] riscv: __asm_copy_to-from_user: Remove unnecessary size check Akira Tsukamoto
2021-07-20  8:53 ` [PATCH 4/4] riscv: __asm_copy_to-from_user: Fix: Typos in comments Akira Tsukamoto
2021-07-20  8:53   ` Akira Tsukamoto
2021-07-20  9:31 ` [PATCH 0/4] __asm_copy_to-from_user: Fixes Geert Uytterhoeven
2021-07-20  9:31   ` Geert Uytterhoeven
2021-07-20 14:19 ` Guenter Roeck
2021-07-20 14:19   ` Guenter Roeck
2021-07-21  1:12 ` Qiu Wenbo
2021-07-24  0:58 ` Palmer Dabbelt
2021-07-24  0:58   ` Palmer Dabbelt

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