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Gustavo A. R. Silva dffc9162fe scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac()
[ Upstream commit 54db804d5d7d36709d1ce70bde3b9a6c61b290b6 ]

Fix the following Wstringop-overflow warnings when building with GCC-11:

drivers/scsi/fcoe/fcoe.c: In function ‘fcoe_netdev_config’:
drivers/scsi/fcoe/fcoe.c:744:32: warning: ‘fcoe_wwn_from_mac’ accessing 32 bytes in a region of size 6 [-Wstringop-overflow=]
  744 |                         wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, 1, 0);
      |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/fcoe/fcoe.c:744:32: note: referencing argument 1 of type ‘unsigned char *’
In file included from drivers/scsi/fcoe/fcoe.c:36:
./include/scsi/libfcoe.h:252:5: note: in a call to function ‘fcoe_wwn_from_mac’
  252 | u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], unsigned int, unsigned int);
      |     ^~~~~~~~~~~~~~~~~
drivers/scsi/fcoe/fcoe.c:747:32: warning: ‘fcoe_wwn_from_mac’ accessing 32 bytes in a region of size 6 [-Wstringop-overflow=]
  747 |                         wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
      |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  748 |                                                  2, 0);
      |                                                  ~~~~~
drivers/scsi/fcoe/fcoe.c:747:32: note: referencing argument 1 of type ‘unsigned char *’
In file included from drivers/scsi/fcoe/fcoe.c:36:
./include/scsi/libfcoe.h:252:5: note: in a call to function ‘fcoe_wwn_from_mac’
  252 | u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], unsigned int, unsigned int);
      |     ^~~~~~~~~~~~~~~~~
  CC      drivers/scsi/bnx2fc/bnx2fc_io.o
In function ‘bnx2fc_net_config’,
    inlined from ‘bnx2fc_if_create’ at drivers/scsi/bnx2fc/bnx2fc_fcoe.c:1543:7:
drivers/scsi/bnx2fc/bnx2fc_fcoe.c:833:32: warning: ‘fcoe_wwn_from_mac’ accessing 32 bytes in a region of size 6 [-Wstringop-overflow=]
  833 |                         wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
      |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  834 |                                                  1, 0);
      |                                                  ~~~~~
drivers/scsi/bnx2fc/bnx2fc_fcoe.c: In function ‘bnx2fc_if_create’:
drivers/scsi/bnx2fc/bnx2fc_fcoe.c:833:32: note: referencing argument 1 of type ‘unsigned char *’
In file included from drivers/scsi/bnx2fc/bnx2fc.h:53,
                 from drivers/scsi/bnx2fc/bnx2fc_fcoe.c:17:
./include/scsi/libfcoe.h:252:5: note: in a call to function ‘fcoe_wwn_from_mac’
  252 | u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], unsigned int, unsigned int);
      |     ^~~~~~~~~~~~~~~~~
In function ‘bnx2fc_net_config’,
    inlined from ‘bnx2fc_if_create’ at drivers/scsi/bnx2fc/bnx2fc_fcoe.c:1543:7:
drivers/scsi/bnx2fc/bnx2fc_fcoe.c:839:32: warning: ‘fcoe_wwn_from_mac’ accessing 32 bytes in a region of size 6 [-Wstringop-overflow=]
  839 |                         wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
      |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  840 |                                                  2, 0);
      |                                                  ~~~~~
drivers/scsi/bnx2fc/bnx2fc_fcoe.c: In function ‘bnx2fc_if_create’:
drivers/scsi/bnx2fc/bnx2fc_fcoe.c:839:32: note: referencing argument 1 of type ‘unsigned char *’
In file included from drivers/scsi/bnx2fc/bnx2fc.h:53,
                 from drivers/scsi/bnx2fc/bnx2fc_fcoe.c:17:
./include/scsi/libfcoe.h:252:5: note: in a call to function ‘fcoe_wwn_from_mac’
  252 | u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], unsigned int, unsigned int);
      |     ^~~~~~~~~~~~~~~~~
drivers/scsi/qedf/qedf_main.c: In function ‘__qedf_probe’:
drivers/scsi/qedf/qedf_main.c:3520:30: warning: ‘fcoe_wwn_from_mac’ accessing 32 bytes in a region of size 6 [-Wstringop-overflow=]
 3520 |                 qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
      |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qedf/qedf_main.c:3520:30: note: referencing argument 1 of type ‘unsigned char *’
In file included from drivers/scsi/qedf/qedf.h:9,
                 from drivers/scsi/qedf/qedf_main.c:23:
./include/scsi/libfcoe.h:252:5: note: in a call to function ‘fcoe_wwn_from_mac’
  252 | u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], unsigned int, unsigned int);
      |     ^~~~~~~~~~~~~~~~~
drivers/scsi/qedf/qedf_main.c:3521:30: warning: ‘fcoe_wwn_from_mac’ accessing 32 bytes in a region of size 6 [-Wstringop-overflow=]
 3521 |                 qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
      |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qedf/qedf_main.c:3521:30: note: referencing argument 1 of type ‘unsigned char *’
In file included from drivers/scsi/qedf/qedf.h:9,
                 from drivers/scsi/qedf/qedf_main.c:23:
./include/scsi/libfcoe.h:252:5: note: in a call to function ‘fcoe_wwn_from_mac’
  252 | u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], unsigned int, unsigned int);
      |     ^~~~~~~~~~~~~~~~~

by changing the array size to the correct value of ETH_ALEN in the
argument declaration.

Also, fix a couple of checkpatch warnings:
WARNING: function definition argument 'unsigned int' should also have an identifier name

This helps with the ongoing efforts to globally enable
-Wstringop-overflow.

Link: https://github.com/KSPP/linux/issues/181
Fixes: 85b4aa4926 ("[SCSI] fcoe: Fibre Channel over Ethernet")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-14 16:59:24 +02:00
arch ARM: dts: bcm2835-rpi-b: Fix GPIO line names 2022-06-14 16:59:24 +02:00
block block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern 2022-06-06 08:24:21 +02:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-22 11:47:51 +02:00
crypto crypto: authenc - Fix sleep in atomic context in decrypt_tail 2022-04-15 14:14:42 +02:00
Documentation hwmon: Make chip parameter for with_info API mandatory 2022-06-14 16:59:17 +02:00
drivers scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac() 2022-06-14 16:59:24 +02:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:21:29 +01:00
fs ext4: reject the 'commit' option on ext2 filesystems 2022-06-14 16:59:23 +02:00
include scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac() 2022-06-14 16:59:24 +02:00
init init/main.c: return 1 from handled __setup() functions 2022-04-15 14:15:03 +02:00
ipc shm: extend forced shm destroy to support objects from several IPC nses 2021-12-08 08:50:11 +01:00
kernel dma-debug: change allocation mode from GFP_NOWAIT to GFP_ATIOMIC 2022-06-14 16:59:16 +02:00
lib assoc_array: Fix BUG_ON during garbage collect 2022-06-06 08:24:20 +02:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm zsmalloc: fix races between asynchronous zspage free and page migration 2022-06-06 08:24:21 +02:00
net rxrpc: Don't try to resend the request if we're receiving the reply 2022-06-14 16:59:23 +02:00
samples samples/kretprobes: Fix return value if register_kretprobe() failed 2021-11-26 11:36:11 +01:00
scripts scripts/faddr2line: Fix overlapping text section failures 2022-06-14 16:59:22 +02:00
security Fix incorrect type in assignment of ipv6 port for audit 2022-04-15 14:14:54 +02:00
sound ASoC: wm2000: fix missing clk_disable_unprepare() on error in wm2000_anc_transition() 2022-06-14 16:59:23 +02:00
tools perf tests bp_account: Make global variable static 2022-06-06 08:24:21 +02:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt KVM: Prevent module exit until all VMs are freed 2022-04-15 14:14:57 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2020-09-26 18:01:31 +02:00
Makefile Linux 4.19.246 2022-06-06 08:24:22 +02:00
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