Re: [PATCH net-next 0/6] net: hns3: Add more commands to Debugfs in HNS3 driver

From: David Miller <davem@davemloft.net>
Date: Fri, 14 Dec 2018 14:30:46 -0800 (PST)

From: Salil Mehta <redacted>
Date: Tue, 11 Dec 2018 17:13:24 +0000

quoted

This patch-set adds few more debugfs commands to HNS3 Ethernet
Driver. Support has been added to query info related to below
items:
1. Packet buffer descriptor ("echo bd info [queue no] [bd index] > cmd")
2. Manager table("echo dump mng tbl > cmd")
3. Dfx status register("echo dump reg ssu [prt id] > cmd")
4. Dcb status register("echo dump reg dcb [port id] > cmd")
5. Queue map ("echo queue map [queue no] > cmd")
6. Tm map ("echo tm map [queue no] > cmd")

NOTE: Above commands are *read-only* and are only intended to
query the information from the SoC(and dump inside the kernel,
for now) and in no way tries to perform write operations for
the purpose of configuration etc.

Series applied.

Actually, reverted.

Please fix these warnings and resubmit (with gcc version
"gcc (GCC) 8.2.1 20181105 (Red Hat 8.2.1-5)"):

In file included from ./include/linux/bitmap.h:9,
                 from ./include/linux/cpumask.h:12,
                 from ./arch/x86/include/asm/cpumask.h:5,
                 from ./arch/x86/include/asm/msr.h:11,
                 from ./arch/x86/include/asm/processor.h:21,
                 from ./arch/x86/include/asm/cpufeature.h:8,
                 from ./arch/x86/include/asm/thread_info.h:53,
                 from ./include/linux/thread_info.h:38,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:81,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/wait.h:9,
                 from ./include/linux/wait_bit.h:8,
                 from ./include/linux/fs.h:6,
                 from ./include/linux/debugfs.h:15,
                 from drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c:4:
In function ‘strncat’,
    inlined from ‘hns3_dbg_help’ at drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c:263:2:
./include/linux/string.h:320:10: warning: ‘__builtin_strncat’ specified bound 256 equals destination size [-Wstringop-overflow=]
   return __builtin_strncat(p, q, count);
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘strncat’,
    inlined from ‘hns3_dbg_help’ at drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c:252:2:
./include/linux/string.h:320:10: warning: ‘__builtin_strncat’ specified bound 256 equals destination size [-Wstringop-overflow=]
   return __builtin_strncat(p, q, count);
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./include/linux/bitmap.h:9,
                 from ./include/linux/cpumask.h:12,
                 from ./arch/x86/include/asm/cpumask.h:5,
                 from ./arch/x86/include/asm/msr.h:11,
                 from ./arch/x86/include/asm/processor.h:21,
                 from ./include/linux/mutex.h:19,
                 from ./include/linux/kernfs.h:13,
                 from ./include/linux/sysfs.h:16,
                 from ./include/linux/kobject.h:20,
                 from ./include/linux/device.h:16,
                 from drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c:4:
In function ‘strncat’,
    inlined from ‘hclge_dbg_dump_mng_table’ at drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c:795:2:
./include/linux/string.h:320:10: warning: ‘__builtin_strncat’ specified bound 256 equals destination size [-Wstringop-overflow=]
   return __builtin_strncat(p, q, count);
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~