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Message-ID: <201811052043.AluJmrOh%fengguang.wu@intel.com>
Date: Mon, 5 Nov 2018 20:10:01 +0800
From: kbuild test robot <lkp@...el.com>
To: Ivan Roman <mr.ivanroman@...il.com>
Cc: kbuild-all@...org, johan@...nel.org, linux-usb@...r.kernel.org,
linux-kernel@...r.kernel.org, Ivan Roman <mr.ivanroman@...il.com>
Subject: Re: [PATCH] USB: serial: io_ti: Replaced simple_strtoul with
kstrtoul + Formatting issues
Hi Ivan,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v4.20-rc1 next-20181105]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Ivan-Roman/USB-serial-io_ti-Replaced-simple_strtoul-with-kstrtoul-Formatting-issues/20181105-194308
config: x86_64-randconfig-x018-201844 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All warnings (new ones prefixed by >>):
In file included from include/uapi/linux/posix_types.h:5:0,
from include/uapi/linux/types.h:14,
from include/linux/compiler.h:163,
from include/linux/export.h:45,
from include/linux/linkage.h:7,
from include/linux/kernel.h:7,
from drivers/usb/serial/io_ti.c:16:
drivers/usb/serial/io_ti.c: In function 'uart_mode_store':
>> include/linux/stddef.h:8:14: warning: passing argument 2 of 'kstrtoul' makes integer from pointer without a cast [-Wint-conversion]
#define NULL ((void *)0)
^
>> drivers/usb/serial/io_ti.c:2656:36: note: in expansion of macro 'NULL'
unsigned int v = kstrtoul(valbuf, NULL, 0);
^~~~
In file included from drivers/usb/serial/io_ti.c:16:0:
include/linux/kernel.h:366:32: note: expected 'unsigned int' but argument is of type 'void *'
static inline int __must_check kstrtoul(const char *s, unsigned int base, unsigned long *res)
^~~~~~~~
--
In file included from include/uapi/linux/posix_types.h:5:0,
from include/uapi/linux/types.h:14,
from include/linux/compiler.h:163,
from include/linux/export.h:45,
from include/linux/linkage.h:7,
from include/linux/kernel.h:7,
from drivers/usb//serial/io_ti.c:16:
drivers/usb//serial/io_ti.c: In function 'uart_mode_store':
>> include/linux/stddef.h:8:14: warning: passing argument 2 of 'kstrtoul' makes integer from pointer without a cast [-Wint-conversion]
#define NULL ((void *)0)
^
drivers/usb//serial/io_ti.c:2656:36: note: in expansion of macro 'NULL'
unsigned int v = kstrtoul(valbuf, NULL, 0);
^~~~
In file included from drivers/usb//serial/io_ti.c:16:0:
include/linux/kernel.h:366:32: note: expected 'unsigned int' but argument is of type 'void *'
static inline int __must_check kstrtoul(const char *s, unsigned int base, unsigned long *res)
^~~~~~~~
vim +/NULL +2656 drivers/usb/serial/io_ti.c
2650
2651 static ssize_t uart_mode_store(struct device *dev,
2652 struct device_attribute *attr, const char *valbuf, size_t count)
2653 {
2654 struct usb_serial_port *port = to_usb_serial_port(dev);
2655 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
> 2656 unsigned int v = kstrtoul(valbuf, NULL, 0);
2657
2658 dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v);
2659
2660 if (v < 256)
2661 edge_port->bUartMode = v;
2662 else
2663 dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v);
2664
2665 return count;
2666 }
2667 static DEVICE_ATTR_RW(uart_mode);
2668
---
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