[PATCH 01/11] arch/alpha/kernel: disable -Wmissing-prototypes for asmlinkage functions

[PATCH 01/11] arch/alpha/kernel: disable -Wmissing-prototypes for asmlinkage functions

[Max Kellermann]

There are no prototypes for functions which are only called by
assembly code.  Tell the compiler to disable those warnings in the
relevant sources, just like arch/parisc/kernel/Makefile does.

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/kernel/Makefile | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile
index fb4efec7cbc7..5ba1400f3e4c 100644
--- a/arch/alpha/kernel/Makefile
+++ b/arch/alpha/kernel/Makefile
@@ -7,6 +7,14 @@ extra-y		:= vmlinux.lds
 asflags-y	:= $(KBUILD_CFLAGS)
 ccflags-y	:= -Wno-sign-compare
 
+# no prototype warnings for functions which are only called by
+# assembly code
+CFLAGS_REMOVE_irq_alpha.o = -Wmissing-prototypes -Wmissing-declarations
+CFLAGS_REMOVE_ptrace.o = -Wmissing-prototypes -Wmissing-declarations
+CFLAGS_REMOVE_signal.o = -Wmissing-prototypes -Wmissing-declarations
+CFLAGS_REMOVE_smp.o = -Wmissing-prototypes -Wmissing-declarations
+CFLAGS_REMOVE_traps.o = -Wmissing-prototypes -Wmissing-declarations
+
 obj-y    := head.o entry.o traps.o process.o osf_sys.o irq.o \
 	    irq_alpha.o signal.o setup.o ptrace.o time.o \
 	    systbls.o err_common.o io.o bugs.o termios.o
-- 
2.39.2

[PATCH 02/11] arch/alpha/bugs: add missing SPDX header

[Max Kellermann]

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/kernel/bugs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/alpha/kernel/bugs.c b/arch/alpha/kernel/bugs.c
index 08cc10d7fa17..6a16559c1a8f 100644
--- a/arch/alpha/kernel/bugs.c
+++ b/arch/alpha/kernel/bugs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <asm/hwrpb.h>
 #include <linux/device.h>
-- 
2.39.2

[PATCH 03/11] arch/alpha/bugs: include <linux/cpu.h> to fix -Wmissing-prototypes

[Max Kellermann]

Fixes:

 arch/alpha/kernel/bugs.c:19:9: error: no previous prototype for 'cpu_show_meltdown' [-Werror=missing-prototypes]
    19 | ssize_t cpu_show_meltdown(struct device *dev,
       |         ^~~~~~~~~~~~~~~~~
 [...]

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/kernel/bugs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/alpha/kernel/bugs.c b/arch/alpha/kernel/bugs.c
index 6a16559c1a8f..d6ee9a30698d 100644
--- a/arch/alpha/kernel/bugs.c
+++ b/arch/alpha/kernel/bugs.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 
+#include <linux/cpu.h> // prototypes for functions defined here
 #include <asm/hwrpb.h>
 #include <linux/device.h>
 
-- 
2.39.2

[PATCH 04/11] arch/alpha/io: add missing includes to fix -Wmissing-prototypes

[Max Kellermann]

Fixes:

 arch/alpha/kernel/io.c:654:1: error: no previous prototype for 'scr_memcpyw' [-Werror=missing-prototypes]
   654 | scr_memcpyw(u16 *d, const u16 *s, unsigned int count)
       | ^~~~~~~~~~~

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/kernel/io.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/alpha/kernel/io.c b/arch/alpha/kernel/io.c
index eda09778268f..fc5f7b80c7ea 100644
--- a/arch/alpha/kernel/io.c
+++ b/arch/alpha/kernel/io.c
@@ -8,6 +8,7 @@
 #include <linux/string.h>
 #include <linux/module.h>
 #include <asm/io.h>
+#include <asm/vga.h> // for the scr_memcpyw() prototype
 
 /* Out-of-line versions of the i/o routines that redirect into the 
    platform-specific version.  Note that "platform-specific" may mean
-- 
2.39.2

[PATCH 05/11] arch/alpha/pci: make pcibios_claim_one_bus() static

[Max Kellermann]

This function is only used within this source file.  Fixes
`-Wmissing-prototypes`:

 arch/alpha/kernel/pci.c:285:1: error: no previous prototype for 'pcibios_claim_one_bus' [-Werror=missing-prototypes]
   285 | pcibios_claim_one_bus(struct pci_bus *b)
       | ^~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/kernel/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 4458eb7f44f0..71495b1354eb 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -281,7 +281,7 @@ pcibios_set_master(struct pci_dev *dev)
 	pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
 }
 
-void __init
+static void __init
 pcibios_claim_one_bus(struct pci_bus *b)
 {
 	struct pci_dev *dev;
-- 
2.39.2

[PATCH 06/11] arch/alpha/irq: include irq_impl.h to fix -Wmissing-prototypes

[Max Kellermann]

Fixes:

 arch/alpha/kernel/irq.c:96:1: error: no previous prototype for 'handle_irq' [-Werror=missing-prototypes]
    96 | handle_irq(int irq)
       | ^~~~~~~~~~
 [...]

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/kernel/irq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index 15f2effd6baf..51c1c87ad8c4 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -11,6 +11,7 @@
  * should be easier.
  */
 
+#include "irq_impl.h"
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/errno.h>
-- 
2.39.2

[PATCH 07/11] arch/alpha/perf_event: make init_hw_perf_events() static

[Max Kellermann]

This function is only used within this source file.  Fixes
`-Wmissing-prototypes`:

 arch/alpha/kernel/perf_event.c:873:12: error: no previous prototype for 'init_hw_perf_events' [-Werror=missing-prototypes]
   873 | int __init init_hw_perf_events(void)
       |            ^~~~~~~~~~~~~~~~~~~

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/kernel/perf_event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
index ccdb508c1516..1f0eb4f25c0f 100644
--- a/arch/alpha/kernel/perf_event.c
+++ b/arch/alpha/kernel/perf_event.c
@@ -870,7 +870,7 @@ static void alpha_perf_event_irq_handler(unsigned long la_ptr,
 /*
  * Init call to initialise performance events at kernel startup.
  */
-int __init init_hw_perf_events(void)
+static int __init init_hw_perf_events(void)
 {
 	pr_info("Performance events: ");
 
-- 
2.39.2

[PATCH 08/11] arch/alpha/checksum: add missing includes to fix -Wmissing-prototypes

[Max Kellermann]

Fixes:

 arch/alpha/lib/checksum.c:45:9: error: no previous prototype for 'csum_tcpudp_magic' [-Werror=missing-prototypes]
    45 | __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
       |         ^~~~~~~~~~~~~~~~~

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/lib/checksum.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/alpha/lib/checksum.c b/arch/alpha/lib/checksum.c
index 3f35c3ed6948..66cad8354a44 100644
--- a/arch/alpha/lib/checksum.c
+++ b/arch/alpha/lib/checksum.c
@@ -10,6 +10,8 @@
  *	Rick Gorton	<rick.gorton@alpha-processor.com>
  */
  
+#include <asm/checksum.h>
+
 #include <linux/module.h>
 #include <linux/string.h>
 
-- 
2.39.2

[PATCH 09/11] arch/alpha/fpreg: add missing includes to fix -Wmissing-prototypes

[Max Kellermann]

Fixes:

 arch/alpha/lib/fpreg.c:20:1: error: no previous prototype for 'alpha_read_fp_reg' [-Werror=missing-prototypes]
    20 | alpha_read_fp_reg (unsigned long reg)
       | ^~~~~~~~~~~~~~~~~
 [...]

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/lib/fpreg.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/alpha/lib/fpreg.c b/arch/alpha/lib/fpreg.c
index 7c08b225261c..88e912689140 100644
--- a/arch/alpha/lib/fpreg.c
+++ b/arch/alpha/lib/fpreg.c
@@ -5,9 +5,12 @@
  * (C) Copyright 1998 Linus Torvalds
  */
 
+#include "../kernel/proto.h"
+
 #include <linux/compiler.h>
 #include <linux/export.h>
 #include <linux/preempt.h>
+#include <asm/fpu.h>
 #include <asm/thread_info.h>
 
 #if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
-- 
2.39.2

[PATCH 10/11] arch/alpha/smc37c669.: make SMC37c669_dump_registers() static

[Max Kellermann]

This function is only used within this source file.  Fixes
`-Wmissing-prototypes`:

 arch/alpha/kernel/smc37c669.c:2434:1: error: no previous prototype for 'SMC37c669_dump_registers' [-Werror=missing-prototypes]
  2434 | SMC37c669_dump_registers(void)
       | ^~~~~~~~~~~~~~~~~~~~~~~~

Also add `#if SMC_DEBUG` because it's only ever used under this
condition.

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/kernel/smc37c669.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c
index bbbd34586de0..ab22ade3dea3 100644
--- a/arch/alpha/kernel/smc37c669.c
+++ b/arch/alpha/kernel/smc37c669.c
@@ -2430,13 +2430,16 @@ int __init smcc669_write( struct FILE *fp, int size, int number, unsigned char *
 }
 #endif
 
-void __init
+#if SMC_DEBUG
+static void __init
 SMC37c669_dump_registers(void)
 {
   int i;
   for (i = 0; i <= 0x29; i++)
     printk("-- CR%02x : %02x\n", i, SMC37c669_read_config(i));
 }
+#endif // SMC_DEBUG
+
 /*+
  * ============================================================================
  * = SMC_init - SMC37c669 Super I/O controller initialization                 =
-- 
2.39.2

[PATCH 11/11] arch/alpha/smc37c669: add missing includes to fix -Wmissing-prototypes

[Max Kellermann]

Fixes:

 arch/alpha/kernel/smc37c669.c:2467:13: error: no previous prototype for 'SMC669_Init' [-Werror=missing-prototypes]
  2467 | void __init SMC669_Init ( int index )
       |             ^~~~~~~~~~~

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
---
 arch/alpha/kernel/smc37c669.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c
index ab22ade3dea3..be71ea825690 100644
--- a/arch/alpha/kernel/smc37c669.c
+++ b/arch/alpha/kernel/smc37c669.c
@@ -1,6 +1,9 @@
 /*
  * SMC 37C669 initialization code
  */
+
+#include "proto.h" // for the SMC669_Init() prototype
+
 #include <linux/kernel.h>
 
 #include <linux/mm.h>
-- 
2.39.2