linux-kernel - [PATCH 2/4] sparc64: Fix incorrect function signature and add prototype for prom_cif

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Message-Id: <20240710094155.458731-3-andreas@gaisler.com>
Date: Wed, 10 Jul 2024 11:41:53 +0200
From: Andreas Larsson <andreas@...sler.com>
To: David Miller <davem@...emloft.net>,
	sparclinux@...r.kernel.org
Cc: Sam Ravnborg <sam@...nborg.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] sparc64: Fix incorrect function signature and add prototype for prom_cif_init

Remove the unused cif_stack argument and add a protype in oplib_64.h
Commit ef3e035c3a9b ("sparc64: Fix register corruption in top-most
kernel stack frame during boot.") removed the cif_stack argument to
prom_cif init in the declaration at the caller site and the usage of it
within prom_cif_init, but not in the function signature of the function
itself.

This also fixes the following warning:
arch/sparc/prom/p1275.c:52:6: warning: no previous prototype for ‘prom_cif_init’

Fixes: ef3e035c3a9b ("sparc64: Fix register corruption in top-most kernel stack frame during boot.")
Signed-off-by: Andreas Larsson <andreas@...sler.com>
---
 arch/sparc/include/asm/oplib_64.h | 1 +
 arch/sparc/prom/init_64.c         | 3 ---
 arch/sparc/prom/p1275.c           | 2 +-
 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h
index a67abebd43592..1b86d02a84556 100644
--- a/arch/sparc/include/asm/oplib_64.h
+++ b/arch/sparc/include/asm/oplib_64.h
@@ -247,6 +247,7 @@ void prom_sun4v_guest_soft_state(void);
 int prom_ihandle2path(int handle, char *buffer, int bufsize);
 
 /* Client interface level routines. */
+void prom_cif_init(void *cif_handler);
 void p1275_cmd_direct(unsigned long *);
 
 #endif /* !(__SPARC64_OPLIB_H) */
diff --git a/arch/sparc/prom/init_64.c b/arch/sparc/prom/init_64.c
index 103aa91043185..f7b8a1a865b8f 100644
--- a/arch/sparc/prom/init_64.c
+++ b/arch/sparc/prom/init_64.c
@@ -26,9 +26,6 @@ phandle prom_chosen_node;
  * routines in the prom library.
  * It gets passed the pointer to the PROM vector.
  */
-
-extern void prom_cif_init(void *);
-
 void __init prom_init(void *cif_handler)
 {
 	phandle node;
diff --git a/arch/sparc/prom/p1275.c b/arch/sparc/prom/p1275.c
index 889aa602f8d86..51c3f984bbf72 100644
--- a/arch/sparc/prom/p1275.c
+++ b/arch/sparc/prom/p1275.c
@@ -49,7 +49,7 @@ void p1275_cmd_direct(unsigned long *args)
 	local_irq_restore(flags);
 }
 
-void prom_cif_init(void *cif_handler, void *cif_stack)
+void prom_cif_init(void *cif_handler)
 {
 	p1275buf.prom_cif_handler = (void (*)(long *))cif_handler;
 }
-- 
2.34.1