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Diffstat (limited to 'arch/frv/mm/extable.c')
-rw-r--r--arch/frv/mm/extable.c49
1 files changed, 0 insertions, 49 deletions
diff --git a/arch/frv/mm/extable.c b/arch/frv/mm/extable.c
deleted file mode 100644
index 77c0c5ba88bc..000000000000
--- a/arch/frv/mm/extable.c
+++ /dev/null
@@ -1,49 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/frv/mm/extable.c
- */
-
-#include <linux/extable.h>
-#include <linux/spinlock.h>
-#include <linux/uaccess.h>
-
-extern const void __memset_end, __memset_user_error_lr, __memset_user_error_handler;
-extern const void __memcpy_end, __memcpy_user_error_lr, __memcpy_user_error_handler;
-extern spinlock_t modlist_lock;
-
-int fixup_exception(struct pt_regs *regs)
-{
- const struct exception_table_entry *extab;
- unsigned long pc = regs->pc;
-
- /* determine if the fault lay during a memcpy_user or a memset_user */
- if (regs->lr == (unsigned long) &__memset_user_error_lr &&
- (unsigned long) &memset <= pc && pc < (unsigned long) &__memset_end
- ) {
- /* the fault occurred in a protected memset
- * - we search for the return address (in LR) instead of the program counter
- * - it was probably during a clear_user()
- */
- regs->pc = (unsigned long) &__memset_user_error_handler;
- return 1;
- }
-
- if (regs->lr == (unsigned long) &__memcpy_user_error_lr &&
- (unsigned long) &memcpy <= pc && pc < (unsigned long) &__memcpy_end
- ) {
- /* the fault occurred in a protected memset
- * - we search for the return address (in LR) instead of the program counter
- * - it was probably during a copy_to/from_user()
- */
- regs->pc = (unsigned long) &__memcpy_user_error_handler;
- return 1;
- }
-
- extab = search_exception_tables(pc);
- if (extab) {
- regs->pc = extab->fixup;
- return 1;
- }
-
- return 0;
-}