From: Anshuman Khandual <anshuman.khandual@xxxxxxx> Subject: powerpc/mm: drop platform defined pmd_mknotpresent() Patch series "mm/thp: Rename pmd_mknotpresent() as pmd_mknotvalid()", v2. This series renames pmd_mknotpresent() as pmd_mknotvalid(). Before that it drops an existing pmd_mknotpresent() definition from powerpc platform which was never required as it defines it's pmdp_invalidate() through subscribing __HAVE_ARCH_PMDP_INVALIDATE. This does not create any functional change. This rename was suggested by Catalin during a previous discussion while we were trying to change the THP helpers on arm64 platform for migration. https://patchwork.kernel.org/patch/11019637/ This patch (of 2): Platform needs to define pmd_mknotpresent() for generic pmdp_invalidate() only when __HAVE_ARCH_PMDP_INVALIDATE is not subscribed. Otherwise platform specific pmd_mknotpresent() is not required. Hence just drop it. Link: http://lkml.kernel.org/r/1587520326-10099-1-git-send-email-anshuman.khandual@xxxxxxx Link: http://lkml.kernel.org/r/1584680057-13753-1-git-send-email-anshuman.khandual@xxxxxxx Link: http://lkml.kernel.org/r/1584680057-13753-2-git-send-email-anshuman.khandual@xxxxxxx Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Vineet Gupta <vgupta@xxxxxxxxxxxx> Cc: Russell King <linux@xxxxxxxxxxxxxxx> Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Will Deacon <will@xxxxxxxxxx> Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/powerpc/include/asm/book3s/64/pgtable.h | 4 ---- 1 file changed, 4 deletions(-) --- a/arch/powerpc/include/asm/book3s/64/pgtable.h~powerpc-mm-drop-platform-defined-pmd_mknotpresent +++ a/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -1168,10 +1168,6 @@ static inline int pmd_large(pmd_t pmd) return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE)); } -static inline pmd_t pmd_mknotpresent(pmd_t pmd) -{ - return __pmd(pmd_val(pmd) & ~_PAGE_PRESENT); -} /* * For radix we should always find H_PAGE_HASHPTE zero. Hence * the below will work for radix too _
