linux-kernel - [RFC PATCH v1 01/19] powerpc/signal: Move inline functions in signal.h

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Date:   Wed, 12 Aug 2020 12:05:52 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>, ldv@...linux.org,
        viro@...iv.linux.org.uk
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [RFC PATCH v1 01/19] powerpc/signal: Move inline functions in
 signal.h

To really be inlined, the functions needs to be defined in the
same C file as the caller, or in an included header.

Move functions from signal .c defined inline in signal.h

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
Fixes: 3dd4eb83a9c0 ("powerpc: move common register copy functions from signal_32.c to signal.c")
---
 arch/powerpc/kernel/signal.c | 30 --------------------------
 arch/powerpc/kernel/signal.h | 41 +++++++++++++++++++++++++++++-------
 2 files changed, 33 insertions(+), 38 deletions(-)

diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index d15a98c758b8..3b56db02b762 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -133,36 +133,6 @@ unsigned long copy_ckvsx_from_user(struct task_struct *task,
 	return 0;
 }
 #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
-#else
-inline unsigned long copy_fpr_to_user(void __user *to,
-				      struct task_struct *task)
-{
-	return __copy_to_user(to, task->thread.fp_state.fpr,
-			      ELF_NFPREG * sizeof(double));
-}
-
-inline unsigned long copy_fpr_from_user(struct task_struct *task,
-					void __user *from)
-{
-	return __copy_from_user(task->thread.fp_state.fpr, from,
-			      ELF_NFPREG * sizeof(double));
-}
-
-#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-inline unsigned long copy_ckfpr_to_user(void __user *to,
-					 struct task_struct *task)
-{
-	return __copy_to_user(to, task->thread.ckfp_state.fpr,
-			      ELF_NFPREG * sizeof(double));
-}
-
-inline unsigned long copy_ckfpr_from_user(struct task_struct *task,
-						 void __user *from)
-{
-	return __copy_from_user(task->thread.ckfp_state.fpr, from,
-				ELF_NFPREG * sizeof(double));
-}
-#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
 #endif
 
 /* Log an error when sending an unhandled signal to a process. Controlled
diff --git a/arch/powerpc/kernel/signal.h b/arch/powerpc/kernel/signal.h
index d396efca4068..4626d39cc0f0 100644
--- a/arch/powerpc/kernel/signal.h
+++ b/arch/powerpc/kernel/signal.h
@@ -19,14 +19,6 @@ extern int handle_signal32(struct ksignal *ksig, sigset_t *oldset,
 extern int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
 			      struct task_struct *tsk);
 
-extern unsigned long copy_fpr_to_user(void __user *to,
-				      struct task_struct *task);
-extern unsigned long copy_ckfpr_to_user(void __user *to,
-					       struct task_struct *task);
-extern unsigned long copy_fpr_from_user(struct task_struct *task,
-					void __user *from);
-extern unsigned long copy_ckfpr_from_user(struct task_struct *task,
-						 void __user *from);
 extern unsigned long get_tm_stackpointer(struct task_struct *tsk);
 
 #ifdef CONFIG_VSX
@@ -38,6 +30,39 @@ extern unsigned long copy_vsx_from_user(struct task_struct *task,
 					void __user *from);
 extern unsigned long copy_ckvsx_from_user(struct task_struct *task,
 						 void __user *from);
+unsigned long copy_fpr_to_user(void __user *to, struct task_struct *task);
+unsigned long copy_ckfpr_to_user(void __user *to, struct task_struct *task);
+unsigned long copy_fpr_from_user(struct task_struct *task, void __user *from);
+unsigned long copy_ckfpr_from_user(struct task_struct *task, void __user *from);
+#else
+static inline unsigned long
+copy_fpr_to_user(void __user *to, struct task_struct *task)
+{
+	return __copy_to_user(to, task->thread.fp_state.fpr,
+			      ELF_NFPREG * sizeof(double));
+}
+
+static inline unsigned long
+copy_fpr_from_user(struct task_struct *task, void __user *from)
+{
+	return __copy_from_user(task->thread.fp_state.fpr, from,
+			      ELF_NFPREG * sizeof(double));
+}
+
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+inline unsigned long copy_ckfpr_to_user(void __user *to, struct task_struct *task)
+{
+	return __copy_to_user(to, task->thread.ckfp_state.fpr,
+			      ELF_NFPREG * sizeof(double));
+}
+
+static inline unsigned long
+copy_ckfpr_from_user(struct task_struct *task, void __user *from)
+{
+	return __copy_from_user(task->thread.ckfp_state.fpr, from,
+				ELF_NFPREG * sizeof(double));
+}
+#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
 #endif
 
 #ifdef CONFIG_PPC64
-- 
2.25.0