From 29674a1c71be710f8418468aa6a8addd6d1aba1c Mon Sep 17 00:00:00 2001 From: Qian Cai Date: Tue, 17 Sep 2019 11:22:30 -0400 Subject: [PATCH] powerpc/pkeys: remove unused pkey_allows_readwrite pkey_allows_readwrite() was first introduced in the commit 5586cf61e108 ("powerpc: introduce execute-only pkey"), but the usage was removed entirely in the commit a4fcc877d4e1 ("powerpc/pkeys: Preallocate execute-only key"). Found by the "-Wunused-function" compiler warning flag. Fixes: a4fcc877d4e1 ("powerpc/pkeys: Preallocate execute-only key") Signed-off-by: Qian Cai Acked-by: Ram Pai Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1568733750-14580-1-git-send-email-cai@lca.pw --- arch/powerpc/mm/book3s64/pkeys.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/arch/powerpc/mm/book3s64/pkeys.c b/arch/powerpc/mm/book3s64/pkeys.c index ae7fca40e5b3..59e0ebbd8036 100644 --- a/arch/powerpc/mm/book3s64/pkeys.c +++ b/arch/powerpc/mm/book3s64/pkeys.c @@ -307,16 +307,6 @@ void thread_pkey_regs_init(struct thread_struct *thread) write_iamr(pkey_iamr_mask); } -static inline bool pkey_allows_readwrite(int pkey) -{ - int pkey_shift = pkeyshift(pkey); - - if (!is_pkey_enabled(pkey)) - return true; - - return !(read_amr() & ((AMR_RD_BIT|AMR_WR_BIT) << pkey_shift)); -} - int __execute_only_pkey(struct mm_struct *mm) { return mm->context.execute_only_pkey; -- 2.17.1