Commit 8772555a authored by Alexander Gordeev's avatar Alexander Gordeev Committed by Heiko Carstens
Browse files

s390/kasan: cleanup setup of zero pgtable 



Fix variables initialization coding style and setup zero
pgtable same way region and segment pgtables are set up.

Reviewed-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent aae2f753

arch/s390/mm/kasan_init.c

+5 −7
Original line number Diff line number Diff line
@@ -251,19 +251,17 @@ static void __init kasan_early_detect_facilities(void) 


void __init kasan_early_init(void)

{

	unsigned long shadow_alloc_size;

	unsigned long initrd_end;

	unsigned long memsize;

	unsigned long pgt_prot = pgprot_val(PAGE_KERNEL_RO);

	pte_t pte_z;

	pte_t pte_z = __pte(__pa(kasan_early_shadow_page) | pgprot_val(PAGE_KERNEL_RO));

	pmd_t pmd_z = __pmd(__pa(kasan_early_shadow_pte) | _SEGMENT_ENTRY);

	pud_t pud_z = __pud(__pa(kasan_early_shadow_pmd) | _REGION3_ENTRY);

	p4d_t p4d_z = __p4d(__pa(kasan_early_shadow_pud) | _REGION2_ENTRY);

	unsigned long shadow_alloc_size;

	unsigned long initrd_end;

	unsigned long memsize;



	kasan_early_detect_facilities();

	if (!has_nx)

		pgt_prot &= ~_PAGE_NOEXEC;

	pte_z = __pte(__pa(kasan_early_shadow_page) | pgt_prot);

		pte_z = clear_pte_bit(pte_z, __pgprot(_PAGE_NOEXEC));



	memsize = get_mem_detect_end();

	if (!memsize)