[PATCH v3] MIPS: fixes and cleanups for the compressed kernel support

[Wu Zhangjin <wuzhangjin@gmail.com>]

From: Wu Zhangjin <wuzhangjin@gmail.com>

This patch indents the instructions in the delay slot of the file which
has a ".set noreorder" added.

and also, the "addu a0, 4" instruction is replaced by "addiu a0, a0, 4".

(This is against the commit
c6adcc73663a71f2aa9e66796a9bd57fcb6a349a(MIPS: add support for
gzip/bzip2/lzma compressed kernel images) in the mips-for-linux-next
branch of Ralf's
http://www.linux-mips.org/git?p=upstream-sfr.git;a=summary

This -v3 revision incorporates the feedback from "Maciej W. Rozycki"
<macro@linux-mips.org> and David Daney <ddaney@caviumnetworks.com>

Hi, Ralf, could you please merge it into you mips-for-linux-next
branch?)

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
---
 arch/mips/boot/compressed/head.S |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/mips/boot/compressed/head.S b/arch/mips/boot/compressed/head.S
index e23f25e..4e65a84 100644
--- a/arch/mips/boot/compressed/head.S
+++ b/arch/mips/boot/compressed/head.S
@@ -30,7 +30,7 @@ start:
        PTR_LA  a2, _end
 1:     sw      zero, 0(a0)
        bne     a2, a0, 1b
-       addu    a0, 4
+        addiu  a0, a0, 4
 
        PTR_LA  a0, (.heap)          /* heap address */
        PTR_LA  sp, (.stack + 8192)  /* stack address */
@@ -38,7 +38,7 @@ start:
        PTR_LA  ra, 2f
        PTR_LA  k0, decompress_kernel
        jr      k0
-       nop
+        nop
 2:
        move    a0, s0
        move    a1, s1
@@ -46,9 +46,10 @@ start:
        move    a3, s3
        PTR_LI  k0, KERNEL_ENTRY
        jr      k0
-       nop
+        nop
 3:
-       b 3b
+       b       3b
+        nop
        END(start)
 
        .comm .heap,BOOT_HEAP_SIZE,4
-- 
1.6.2.1