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s390/boot: avoid unnecessary zeroing of .bss section

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.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>
This commit is contained in:
Vasily Gorbik 2020-09-16 12:02:49 +02:00
parent 48175fed1d
commit bcf1650c9b
1 changed files with 0 additions and 6 deletions
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6
arch/s390/boot/head.S
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@ -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