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Gustavo A. R. Silva fb4b1b33f1 scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac() 
[ Upstream commit 54db804d5d ]

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>
2022-06-09 10:26:03 +02:00
arch powerpc/fadump: fix PT_LOAD segment for boot memory area 2022-06-09 10:26:03 +02:00
block bfq: Allow current waker to defend against a tentative one 2022-06-09 10:25:56 +02:00
certs certs: Fix build error when CONFIG_MODULE_SIG_KEY is empty 2022-01-23 00:08:44 +09:00
crypto crypto: ecrdsa - Fix incorrect use of vli_cmp 2022-06-06 08:47:53 +02:00
Documentation dt-bindings: soc: qcom: smd-rpm: Fix missing MSM8936 compatible 2022-06-09 10:26:01 +02:00
drivers scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac() 2022-06-09 10:26:03 +02:00
fs rxrpc: Fix locking issue 2022-06-09 10:25:57 +02:00
include scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac() 2022-06-09 10:26:03 +02:00
init kthread: Don't allocate kthread_struct for init and umh 2022-06-09 10:25:16 +02:00
ipc ipc/sem: do not sleep with a spin lock held 2022-02-04 09:25:05 -08:00
kernel dma-direct: don't over-decrypt memory 2022-06-09 10:25:58 +02:00
lib kunit: fix debugfs code to use enum kunit_status, not bool 2022-06-09 10:25:46 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm zsmalloc: fix races between asynchronous zspage free and page migration 2022-06-06 08:47:53 +02:00
net Revert "net/smc: fix listen processing for SMC-Rv2" 2022-06-09 10:25:59 +02:00
samples samples: bpf: Don't fail for a missing VMLINUX_BTF when VMLINUX_H is provided 2022-06-09 10:25:48 +02:00
scripts scripts/faddr2line: Fix overlapping text section failures 2022-06-09 10:25:50 +02:00
security lockdown: also lock down previous kgdb use 2022-05-25 09:59:10 +02:00
sound ASoC: max98090: Move check for invalid values before casting in max98090_put_enab_tlv() 2022-06-09 10:25:57 +02:00
tools perf parse-events: Support different format of the topdown event name 2022-06-09 10:25:57 +02:00
usr kbuild: remove include/linux/cyclades.h from header file check 2022-01-27 08:51:08 +01:00
virt KVM: Free new dirty bitmap if creating a new memslot fails 2022-05-25 09:59:03 +02:00
.clang-format genirq/msi: Make interrupt allocation less convoluted 2021-12-16 22:22:20 +01:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap MAINTAINERS: Update Jisheng's email address 2022-03-08 17:30:32 +01:00
COPYING
CREDITS MAINTAINERS: replace a Microchip AT91 maintainer 2022-02-09 11:30:01 +01:00
Kbuild
Kconfig
MAINTAINERS net: dsa: realtek-smi: move to subdirectory 2022-04-08 13:58:12 +02:00
Makefile Linux 5.17.13 2022-06-06 08:47:57 +02:00
README

README 

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In order to build the documentation, use ``make htmldocs`` or
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    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.