修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/arch/arm/lib/copy_from_user.S
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@@ -1,13 +1,10 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  *  linux/arch/arm/lib/copy_from_user.S
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  *
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  *  Author:	Nicolas Pitre
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  *  Created:	Sep 29, 2005
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  *  Copyright:	MontaVista Software, Inc.
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- *
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- *  This program is free software; you can redistribute it and/or modify
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- *  it under the terms of the GNU General Public License version 2 as
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- *  published by the Free Software Foundation.
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  */
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 #include <linux/linkage.h>
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@@ -34,12 +31,13 @@
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  *	Number of bytes NOT copied.
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  */
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+#ifdef CONFIG_CPU_USE_DOMAINS
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+
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 #ifndef CONFIG_THUMB2_KERNEL
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 #define LDR1W_SHIFT	0
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 #else
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 #define LDR1W_SHIFT	1
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 #endif
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-#define STR1W_SHIFT	0
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 	.macro ldr1w ptr reg abort
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 	ldrusr	\reg, \ptr, 4, abort=\abort
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@@ -57,9 +55,29 @@
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 	ldr4w \ptr, \reg5, \reg6, \reg7, \reg8, \abort
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 	.endm
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+#else
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+
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+#define LDR1W_SHIFT	0
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+
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+	.macro ldr1w ptr reg abort
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+	USERL(\abort, W(ldr) \reg, [\ptr], #4)
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+	.endm
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+
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+	.macro ldr4w ptr reg1 reg2 reg3 reg4 abort
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+	USERL(\abort, ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4})
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+	.endm
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+
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+	.macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
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+	USERL(\abort, ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8})
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+	.endm
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+
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+#endif /* CONFIG_CPU_USE_DOMAINS */
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+
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 	.macro ldr1b ptr reg cond=al abort
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 	ldrusr	\reg, \ptr, 1, \cond, abort=\abort
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 	.endm
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+
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+#define STR1W_SHIFT	0
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 	.macro str1w ptr reg abort
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 	W(str) \reg, [\ptr], #4
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@@ -70,7 +88,7 @@
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 	.endm
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 	.macro str1b ptr reg cond=al abort
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-	str\cond\()b \reg, [\ptr], #1
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+	strb\cond \reg, [\ptr], #1
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 	.endm
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 	.macro enter reg1 reg2