s390/boot: avoid unnecessary zeroing of .bss section

.bss section is a part of the decompressor's image now, linker fills it
with zeros already. No need do it with memset additionally.

Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

diff --git a/arch/s390/boot/head.S b/arch/s390/boot/head.S
index fd78755..dae1096 100644 (file)
--- a/arch/s390/boot/head.S
+++ b/arch/s390/boot/head.S
@@ -313,12 +313,6 @@ ENTRY(startup_kdump)
        spt     6f-.LPG0(%r13)
        mvc     __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13)
        l       %r15,.Lstack-.LPG0(%r13)
-       // Clear decompressor's BSS section
-       larl    %r2,_bss
-       slgr    %r3,%r3
-       larl    %r4,_ebss
-       slgr    %r4,%r2
-       brasl   %r14,memset
        brasl   %r14,verify_facilities
        brasl   %r14,startup_kernel