parisc: Reduce kernel size by packing alternative tables

The values stored in the length and condition fields of the alternative
tables fit into 16 bits, so we can save 4 bytes per alternative table
entry.
Since a typical 32-bit kernel has more than 3000 entries this
saves > 12k of storage on disc.

bloat-o-meter shows a reduction of -0.01% by this change:
Total: Before=10196505, After=10195529, chg -0.01%

$ ls -la vmlinux vmlinux.before
-rwxr-xr-x  14437324 vmlinux
-rwxr-xr-x  14449512 vmlinux.before

Signed-off-by: Helge Deller <deller@gmx.de>

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/parisc/kernel/alternative.c b/arch/parisc/kernel/alternative.c
index daa1e9047275..66f5672c70bd 100644
--- a/arch/parisc/kernel/alternative.c
+++ b/arch/parisc/kernel/alternative.c
@@ -26,7 +26,7 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
 	struct alt_instr *entry;
 	int index = 0, applied = 0;
 	int num_cpus = num_online_cpus();
-	u32 cond_check;
+	u16 cond_check;
 
 	cond_check = ALT_COND_ALWAYS |
 		((num_cpus == 1) ? ALT_COND_NO_SMP : 0) |
@@ -45,8 +45,9 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
 
 	for (entry = start; entry < end; entry++, index++) {
 
-		u32 *from, cond, replacement;
-		s32 len;
+		u32 *from, replacement;
+		u16 cond;
+		s16 len;
 
 		from = (u32 *)((ulong)&entry->orig_offset + entry->orig_offset);
 		len = entry->len;