[PATCH] scsi: fcoe: fix mismatched fcoe_wwn_from_mac declaration

From: Arnd Bergmann <arnd@kernel.org>
To: Hannes Reinecke <hare@suse.de>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Robert Love <robert.w.love@intel.com>,
	James Bottomley <James.Bottomley@HansenPartnership.com>,
	Vasu Dev <vasu.dev@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] scsi: fcoe: fix mismatched fcoe_wwn_from_mac declaration
Date: Mon, 22 Mar 2021 17:46:59 +0100	[thread overview]
Message-ID: <20210322164702.957810-1-arnd@kernel.org> (raw)

From: Arnd Bergmann <arnd@arndb.de>

An old cleanup changed the array size from MAX_ADDR_LEN to
unspecified in the declaration, but now gcc-11 warns about this:

drivers/scsi/fcoe/fcoe_ctlr.c:1972:37: error: argument 1 of type ‘unsigned char[32]’ with mismatched bound [-Werror=array-parameter=]
 1972 | u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN],
      |                       ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
In file included from /git/arm-soc/drivers/scsi/fcoe/fcoe_ctlr.c:33:
include/scsi/libfcoe.h:252:37: note: previously declared as ‘unsigned char[]’
  252 | u64 fcoe_wwn_from_mac(unsigned char mac[], unsigned int, unsigned int);
      |                       ~~~~~~~~~~~~~~^~~~~

Change the type back to what the function definition uses.

Fixes: fdd78027fd47 ("[SCSI] fcoe: cleans up libfcoe.h and adds fcoe.h for fcoe module")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 include/scsi/libfcoe.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index 2568cb0627ec..fac8e89aed81 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -249,7 +249,7 @@ int fcoe_ctlr_recv_flogi(struct fcoe_ctlr *, struct fc_lport *,
 			 struct fc_frame *);
 
 /* libfcoe funcs */
-u64 fcoe_wwn_from_mac(unsigned char mac[], unsigned int, unsigned int);
+u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], unsigned int, unsigned int);
 int fcoe_libfc_config(struct fc_lport *, struct fcoe_ctlr *,
 		      const struct libfc_function_template *, int init_fcp);
 u32 fcoe_fc_crc(struct fc_frame *fp);
-- 
2.29.2

