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Message-Id: <20210520092116.397874920@linuxfoundation.org>
Date:   Thu, 20 May 2021 11:23:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.9 229/240] isdn: capi: fix mismatched prototypes

From: Arnd Bergmann <arnd@...db.de>

commit 5ee7d4c7fbc9d3119a20b1c77d34003d1f82ac26 upstream.

gcc-11 complains about a prototype declaration that is different
from the function definition:

drivers/isdn/capi/kcapi.c:724:44: error: argument 2 of type ‘u8 *’ {aka ‘unsigned char *’} declared as a pointer [-Werror=array-parameter=]
  724 | u16 capi20_get_manufacturer(u32 contr, u8 *buf)
      |                                        ~~~~^~~
In file included from drivers/isdn/capi/kcapi.c:13:
drivers/isdn/capi/kcapi.h:62:43: note: previously declared as an array ‘u8[64]’ {aka ‘unsigned char[64]’}
   62 | u16 capi20_get_manufacturer(u32 contr, u8 buf[CAPI_MANUFACTURER_LEN]);
      |                                        ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/isdn/capi/kcapi.c:790:38: error: argument 2 of type ‘u8 *’ {aka ‘unsigned char *’} declared as a pointer [-Werror=array-parameter=]
  790 | u16 capi20_get_serial(u32 contr, u8 *serial)
      |                                  ~~~~^~~~~~
In file included from drivers/isdn/capi/kcapi.c:13:
drivers/isdn/capi/kcapi.h:64:37: note: previously declared as an array ‘u8[8]’ {aka ‘unsigned char[8]’}
   64 | u16 capi20_get_serial(u32 contr, u8 serial[CAPI_SERIAL_LEN]);
      |                                  ~~~^~~~~~~~~~~~~~~~~~~~~~~

Change the definition to make them match.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/isdn/capi/kcapi.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -845,7 +845,7 @@ EXPORT_SYMBOL(capi20_put_message);
  * Return value: CAPI result code
  */
 
-u16 capi20_get_manufacturer(u32 contr, u8 *buf)
+u16 capi20_get_manufacturer(u32 contr, u8 buf[CAPI_MANUFACTURER_LEN])
 {
 	struct capi_ctr *ctr;
 	u16 ret;
@@ -915,7 +915,7 @@ EXPORT_SYMBOL(capi20_get_version);
  * Return value: CAPI result code
  */
 
-u16 capi20_get_serial(u32 contr, u8 *serial)
+u16 capi20_get_serial(u32 contr, u8 serial[CAPI_SERIAL_LEN])
 {
 	struct capi_ctr *ctr;
 	u16 ret;


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