ARM: 7290/1: vmlinux.lds.S: align the exception fixup table to a 4-by…

…te boundary

The exception fixup table is currently aligned to a 32-byte boundary.
Whilst this won't cause any problems, the exception_table_entry
structures contain only a pair of unsigned longs, so 4-byte alignment
is all that is required. If the table was walked from start to end,
cacheline alignment may bring some performance benefits, but since a
binary search is used, the access pattern is random and will not benefit
from a stricter alignment.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/vmlinux.lds.S

@@ -219,7 +219,7 @@ SECTIONS
 		/*
 		 * The exception fixup table (might need resorting at runtime)
 		 */
-		. = ALIGN(32);
+		. = ALIGN(4);
 		__start___ex_table = .;
 #ifdef CONFIG_MMU
 		*(__ex_table)