From d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:45:28 +0000
Subject: [PATCH] add boot partition  size

---
 kernel/arch/riscv/lib/uaccess.S |   22 ++++++++++++----------
 1 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/kernel/arch/riscv/lib/uaccess.S b/kernel/arch/riscv/lib/uaccess.S
index 399e6f0..fceaeb1 100644
--- a/kernel/arch/riscv/lib/uaccess.S
+++ b/kernel/arch/riscv/lib/uaccess.S
@@ -1,15 +1,14 @@
 #include <linux/linkage.h>
+#include <asm-generic/export.h>
 #include <asm/asm.h>
 #include <asm/csr.h>
 
-	.altmacro
 	.macro fixup op reg addr lbl
-	LOCAL _epc
-_epc:
+100:
 	\op \reg, \addr
 	.section __ex_table,"a"
 	.balign RISCV_SZPTR
-	RISCV_PTR _epc, \lbl
+	RISCV_PTR 100b, \lbl
 	.previous
 	.endm
 
@@ -18,7 +17,7 @@
 
 	/* Enable access to user memory */
 	li t6, SR_SUM
-	csrs sstatus, t6
+	csrs CSR_STATUS, t6
 
 	add a3, a1, a2
 	/* Use word-oriented copy only if low-order bits match */
@@ -47,7 +46,7 @@
 
 3:
 	/* Disable access to user memory */
-	csrc sstatus, t6
+	csrc CSR_STATUS, t6
 	li a0, 0
 	ret
 4: /* Edge case: unalignment */
@@ -66,13 +65,15 @@
 	j 3b
 ENDPROC(__asm_copy_to_user)
 ENDPROC(__asm_copy_from_user)
+EXPORT_SYMBOL(__asm_copy_to_user)
+EXPORT_SYMBOL(__asm_copy_from_user)
 
 
 ENTRY(__clear_user)
 
 	/* Enable access to user memory */
 	li t6, SR_SUM
-	csrs sstatus, t6
+	csrs CSR_STATUS, t6
 
 	add a3, a0, a1
 	addi t0, a0, SZREG-1
@@ -94,7 +95,7 @@
 
 3:
 	/* Disable access to user memory */
-	csrc sstatus, t6
+	csrc CSR_STATUS, t6
 	li a0, 0
 	ret
 4: /* Edge case: unalignment */
@@ -108,17 +109,18 @@
 	bltu a0, a3, 5b
 	j 3b
 ENDPROC(__clear_user)
+EXPORT_SYMBOL(__clear_user)
 
 	.section .fixup,"ax"
 	.balign 4
 	/* Fixup code for __copy_user(10) and __clear_user(11) */
 10:
 	/* Disable access to user memory */
-	csrs sstatus, t6
+	csrs CSR_STATUS, t6
 	mv a0, a2
 	ret
 11:
-	csrs sstatus, t6
+	csrs CSR_STATUS, t6
 	mv a0, a1
 	ret
 	.previous

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