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Date: Fri, 2 Sep 2022 16:27:12 +0800
From: kernel test robot <lkp@...el.com>
To: Al Viro <viro@...iv.linux.org.uk>
Cc: kbuild-all@...ts.01.org, Ammar Faizi <ammarfaizi2@...weeb.org>,
GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
linux-kernel@...r.kernel.org
Subject: [ammarfaizi2-block:viro/vfs/next.tty 8/8]
arch/powerpc/include/asm/uaccess.h:261:13: warning: assignment to 'void *'
from 'unsigned int' makes pointer from integer without a cast
tree: https://github.com/ammarfaizi2/linux-block viro/vfs/next.tty
head: 6890ade9a0f2c360dbc86f39afc1ef852f4a83c6
commit: 6890ade9a0f2c360dbc86f39afc1ef852f4a83c6 [8/8] saner tty_mode_ioctl() prototype
config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20220902/202209021643.kq1QkE0a-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/ammarfaizi2/linux-block/commit/6890ade9a0f2c360dbc86f39afc1ef852f4a83c6
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block viro/vfs/next.tty
git checkout 6890ade9a0f2c360dbc86f39afc1ef852f4a83c6
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/uaccess.h:11,
from include/linux/sched/task.h:11,
from include/linux/sched/signal.h:9,
from drivers/tty/tty_ioctl.c:13:
drivers/tty/tty_ioctl.c: In function 'tty_mode_ioctl':
>> arch/powerpc/include/asm/uaccess.h:261:13: warning: assignment to 'void *' from 'unsigned int' makes pointer from integer without a cast [-Wint-conversion]
261 | (x) = (__typeof__(*(ptr)))__gu_val; \
| ^
arch/powerpc/include/asm/uaccess.h:271:19: note: in expansion of macro '__get_user'
271 | __get_user(x, _gu_addr) : \
| ^~~~~~~~~~
drivers/tty/tty_ioctl.c:879:21: note: in expansion of macro 'get_user'
879 | if (get_user(arg, (unsigned int __user *) arg))
| ^~~~~~~~
drivers/tty/tty_ioctl.c:881:53: warning: passing argument 2 of 'tty_change_softcar' makes integer from pointer without a cast [-Wint-conversion]
881 | return tty_change_softcar(real_tty, arg);
| ^~~
| |
| void *
drivers/tty/tty_ioctl.c:734:59: note: expected 'int' but argument is of type 'void *'
734 | static int tty_change_softcar(struct tty_struct *tty, int arg)
| ~~~~^~~
vim +261 arch/powerpc/include/asm/uaccess.h
5cd29b1fd3e8f2 arch/powerpc/include/asm/uaccess.h Christophe Leroy 2021-03-10 242
f7a6947cd49b7f arch/powerpc/include/asm/uaccess.h Michael Ellerman 2018-07-10 243 /*
f7a6947cd49b7f arch/powerpc/include/asm/uaccess.h Michael Ellerman 2018-07-10 244 * This is a type: either unsigned long, if the argument fits into
f7a6947cd49b7f arch/powerpc/include/asm/uaccess.h Michael Ellerman 2018-07-10 245 * that type, or otherwise unsigned long long.
f7a6947cd49b7f arch/powerpc/include/asm/uaccess.h Michael Ellerman 2018-07-10 246 */
f7a6947cd49b7f arch/powerpc/include/asm/uaccess.h Michael Ellerman 2018-07-10 247 #define __long_type(x) \
f7a6947cd49b7f arch/powerpc/include/asm/uaccess.h Michael Ellerman 2018-07-10 248 __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
f7a6947cd49b7f arch/powerpc/include/asm/uaccess.h Michael Ellerman 2018-07-10 249
17f8c0bc21bbb7 arch/powerpc/include/asm/uaccess.h Christophe Leroy 2021-03-10 250 #define __get_user(x, ptr) \
2df5e8bcca53e5 include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 251 ({ \
2df5e8bcca53e5 include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 252 long __gu_err; \
f7a6947cd49b7f arch/powerpc/include/asm/uaccess.h Michael Ellerman 2018-07-10 253 __long_type(*(ptr)) __gu_val; \
e00d93ac9a1896 arch/powerpc/include/asm/uaccess.h Anton Blanchard 2018-09-14 254 __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
17f8c0bc21bbb7 arch/powerpc/include/asm/uaccess.h Christophe Leroy 2021-03-10 255 __typeof__(sizeof(*(ptr))) __gu_size = sizeof(*(ptr)); \
d02f6b7dab8228 arch/powerpc/include/asm/uaccess.h Nicholas Piggin 2020-04-07 256 \
1af1717dbf96eb arch/powerpc/include/asm/uaccess.h Michael S. Tsirkin 2013-05-26 257 might_fault(); \
e72fcdb26cde72 arch/powerpc/include/asm/uaccess.h Christophe Leroy 2021-03-10 258 allow_read_from_user(__gu_addr, __gu_size); \
e72fcdb26cde72 arch/powerpc/include/asm/uaccess.h Christophe Leroy 2021-03-10 259 __get_user_size_allowed(__gu_val, __gu_addr, __gu_size, __gu_err); \
e72fcdb26cde72 arch/powerpc/include/asm/uaccess.h Christophe Leroy 2021-03-10 260 prevent_read_from_user(__gu_addr, __gu_size); \
2df5e8bcca53e5 include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 @261 (x) = (__typeof__(*(ptr)))__gu_val; \
d02f6b7dab8228 arch/powerpc/include/asm/uaccess.h Nicholas Piggin 2020-04-07 262 \
2df5e8bcca53e5 include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 263 __gu_err; \
2df5e8bcca53e5 include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 264 })
2df5e8bcca53e5 include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 265
:::::: The code at line 261 was first introduced by commit
:::::: 2df5e8bcca53e528a78ee0e3b114d0d21dd6d043 powerpc: merge uaccess.h
:::::: TO: Stephen Rothwell <sfr@...b.auug.org.au>
:::::: CC: Stephen Rothwell <sfr@...b.auug.org.au>
--
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https://01.org/lkp
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