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authorAneesh Kumar K.V <aneesh.kumar@linux.ibm.com>2019-04-17 18:29:16 +0530
committerMichael Ellerman <mpe@ellerman.id.au>2019-04-21 23:12:40 +1000
commit53ed7a5947de2e19c270a0bc0c29257c6d004b0f (patch)
treec2620795b311304a368e193cde8fefe3bd609339 /arch
parente09093927e54323018dbb3bf6189c85a7f176bae (diff)
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powerpc/mm: Drop the unnecessary region check
All the regions are now mapped with top nibble 0xc. Hence the region id check is not needed for virt_addr_valid() Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/include/asm/page.h12
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index 918228f2205b..748f5db2e2b7 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -132,19 +132,7 @@ static inline bool pfn_valid(unsigned long pfn)
#define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr))
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
-#ifdef CONFIG_PPC_BOOK3S_64
-/*
- * On hash the vmalloc and other regions alias to the kernel region when passed
- * through __pa(), which virt_to_pfn() uses. That means virt_addr_valid() can
- * return true for some vmalloc addresses, which is incorrect. So explicitly
- * check that the address is in the kernel region.
- */
-/* may be can drop get_region_id */
-#define virt_addr_valid(kaddr) (get_region_id((unsigned long)kaddr) == KERNEL_REGION_ID && \
- pfn_valid(virt_to_pfn(kaddr)))
-#else
#define virt_addr_valid(kaddr) pfn_valid(virt_to_pfn(kaddr))
-#endif
/*
* On Book-E parts we need __va to parse the device tree and we can't