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Diffstat (limited to 'arch/powerpc/mm/pgtable_32.c')
-rw-r--r--arch/powerpc/mm/pgtable_32.c47
1 files changed, 30 insertions, 17 deletions
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index face94977cb2..15276068f657 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -48,15 +48,10 @@ notrace void __init early_ioremap_init(void)
early_ioremap_setup();
}
-static void __init *early_alloc_pgtable(unsigned long size)
+void __init *early_alloc_pgtable(unsigned long size)
{
- void *ptr = memblock_alloc(size, size);
+ return memblock_alloc_or_panic(size, size);
- if (!ptr)
- panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
- __func__, size, size);
-
- return ptr;
}
pte_t __init *early_pte_alloc_kernel(pmd_t *pmdp, unsigned long va)
@@ -130,31 +125,41 @@ void __init mapin_ram(void)
}
}
-void mark_initmem_nx(void)
+static int __mark_initmem_nx(void)
{
unsigned long numpages = PFN_UP((unsigned long)_einittext) -
PFN_DOWN((unsigned long)_sinittext);
+ int err;
- mmu_mark_initmem_nx();
+ err = mmu_mark_initmem_nx();
if (!v_block_mapped((unsigned long)_sinittext)) {
- set_memory_nx((unsigned long)_sinittext, numpages);
- set_memory_rw((unsigned long)_sinittext, numpages);
+ err = set_memory_nx((unsigned long)_sinittext, numpages);
+ if (err)
+ return err;
+ err = set_memory_rw((unsigned long)_sinittext, numpages);
}
+ return err;
+}
+
+void mark_initmem_nx(void)
+{
+ int err = __mark_initmem_nx();
+
+ if (err)
+ panic("%s() failed, err = %d\n", __func__, err);
}
#ifdef CONFIG_STRICT_KERNEL_RWX
-void mark_rodata_ro(void)
+static int __mark_rodata_ro(void)
{
unsigned long numpages;
if (IS_ENABLED(CONFIG_STRICT_MODULE_RWX) && mmu_has_feature(MMU_FTR_HPTE_TABLE))
pr_warn("This platform has HASH MMU, STRICT_MODULE_RWX won't work\n");
- if (v_block_mapped((unsigned long)_stext + 1)) {
- mmu_mark_rodata_ro();
- return;
- }
+ if (v_block_mapped((unsigned long)_stext + 1))
+ return mmu_mark_rodata_ro();
/*
* mark text and rodata as read only. __end_rodata is set by
@@ -164,6 +169,14 @@ void mark_rodata_ro(void)
numpages = PFN_UP((unsigned long)__end_rodata) -
PFN_DOWN((unsigned long)_stext);
- set_memory_ro((unsigned long)_stext, numpages);
+ return set_memory_ro((unsigned long)_stext, numpages);
+}
+
+void mark_rodata_ro(void)
+{
+ int err = __mark_rodata_ro();
+
+ if (err)
+ panic("%s() failed, err = %d\n", __func__, err);
}
#endif