arch: remove frv port

The Fujitsu FRV kernel port has been around for a long time, but has not
seen regular updates in several years and instead was marked 'Orphaned'
in 2016 by long-time maintainer David Howells.

The SoC product line apparently is apparently still around in the form
of the Socionext Milbeaut image processor, but this one no longer uses
the FRV CPU cores.

This removes all FRV specific files from the kernel.

Link: http://www.socionext.com/en/products/assp/milbeaut/
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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;
-}