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Message-ID: <202210201618.8XhEGsLd-lkp@intel.com>
Date: Thu, 20 Oct 2022 16:39:56 +0800
From: kernel test robot <lkp@...el.com>
To: "Jason A. Donenfeld" <Jason@...c4.com>,
linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
linux-arch@...r.kernel.org, linux-toolchains@...r.kernel.org
Cc: kbuild-all@...ts.01.org, "Jason A. Donenfeld" <Jason@...c4.com>,
Masahiro Yamada <masahiroy@...nel.org>,
Kees Cook <keescook@...omium.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] kbuild: treat char as always signed
Hi Jason,
I love your patch! Perhaps something to improve:
[auto build test WARNING on masahiroy-kbuild/for-next]
[also build test WARNING on linus/master v6.1-rc1]
[cannot apply to next-20221020]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Jason-A-Donenfeld/kbuild-treat-char-as-always-signed/20221020-113408
base: https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git for-next
patch link: https://lore.kernel.org/r/20221019162648.3557490-1-Jason%40zx2c4.com
patch subject: [PATCH] kbuild: treat char as always signed
config: s390-allmodconfig
compiler: s390-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/intel-lab-lkp/linux/commit/574c38568c2c4a092070a42616218871cf6b7ff9
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Jason-A-Donenfeld/kbuild-treat-char-as-always-signed/20221020-113408
git checkout 574c38568c2c4a092070a42616218871cf6b7ff9
# 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=s390 SHELL=/bin/bash drivers/s390/block/ drivers/s390/char/
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 >>):
drivers/s390/block/dasd.c: In function '__dasd_process_cqr':
>> drivers/s390/block/dasd.c:1912:9: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
1912 | case DASD_CQR_ERROR:
| ^~~~
drivers/s390/block/dasd.c:1915:9: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
1915 | case DASD_CQR_CLEARED:
| ^~~~
drivers/s390/block/dasd.c:1909:9: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
1909 | case DASD_CQR_SUCCESS:
| ^~~~
drivers/s390/block/dasd.c: In function 'dasd_flush_device_queue':
drivers/s390/block/dasd.c:2113:17: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
2113 | case DASD_CQR_QUEUED:
| ^~~~
drivers/s390/block/dasd.c:2102:17: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
2102 | case DASD_CQR_IN_IO:
| ^~~~
drivers/s390/block/dasd.c: In function '__dasd_cancel_req':
drivers/s390/block/dasd.c:2615:9: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
2615 | case DASD_CQR_QUEUED:
| ^~~~
drivers/s390/block/dasd.c:2619:9: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
2619 | case DASD_CQR_IN_IO:
| ^~~~
--
drivers/s390/block/dasd_3990_erp.c: In function 'dasd_3990_handle_env_data':
>> drivers/s390/block/dasd_3990_erp.c:861:9: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
861 | case 0x80: /* Format 8 - Additional Device Equipment Checks */
| ^~~~
drivers/s390/block/dasd_3990_erp.c:914:9: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
914 | case 0x90: /* Format 9 - Device Read, Write, and Seek Checks */
| ^~~~
drivers/s390/block/dasd_3990_erp.c:943:9: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
943 | case 0xF0: /* Format F - Cache Storage Checks */
| ^~~~
--
drivers/s390/char/sclp_vt220.c: In function 'sclp_vt220_receiver_fn':
>> drivers/s390/char/sclp_vt220.c:536:9: warning: case label value exceeds maximum value for type [-Wswitch-outside-range]
536 | case SCLP_VT220_SESSION_STARTED:
| ^~~~
vim +1912 drivers/s390/block/dasd.c
^1da177e4c3f41 Linus Torvalds 2005-04-16 1902
5c618c0cf451f1 Sebastian Ott 2018-05-24 1903 static void __dasd_process_cqr(struct dasd_device *device,
5c618c0cf451f1 Sebastian Ott 2018-05-24 1904 struct dasd_ccw_req *cqr)
^1da177e4c3f41 Linus Torvalds 2005-04-16 1905 {
fc19f381b3828a Stefan Haberland 2009-03-26 1906 char errorstring[ERRORLENGTH];
f24acd4503270e Horst Hummel 2005-05-01 1907
8e09f21574ea30 Stefan Weinhuber 2008-01-26 1908 switch (cqr->status) {
8e09f21574ea30 Stefan Weinhuber 2008-01-26 1909 case DASD_CQR_SUCCESS:
8e09f21574ea30 Stefan Weinhuber 2008-01-26 1910 cqr->status = DASD_CQR_DONE;
d54853ef8cb172 Martin Schwidefsky 2007-02-05 1911 break;
8e09f21574ea30 Stefan Weinhuber 2008-01-26 @1912 case DASD_CQR_ERROR:
8e09f21574ea30 Stefan Weinhuber 2008-01-26 1913 cqr->status = DASD_CQR_NEED_ERP;
d54853ef8cb172 Martin Schwidefsky 2007-02-05 1914 break;
8e09f21574ea30 Stefan Weinhuber 2008-01-26 1915 case DASD_CQR_CLEARED:
8e09f21574ea30 Stefan Weinhuber 2008-01-26 1916 cqr->status = DASD_CQR_TERMINATED;
8e09f21574ea30 Stefan Weinhuber 2008-01-26 1917 break;
8e09f21574ea30 Stefan Weinhuber 2008-01-26 1918 default:
fc19f381b3828a Stefan Haberland 2009-03-26 1919 /* internal error 12 - wrong cqr status*/
fc19f381b3828a Stefan Haberland 2009-03-26 1920 snprintf(errorstring, ERRORLENGTH, "12 %p %x02", cqr, cqr->status);
fc19f381b3828a Stefan Haberland 2009-03-26 1921 dev_err(&device->cdev->dev,
fc19f381b3828a Stefan Haberland 2009-03-26 1922 "An error occurred in the DASD device driver, "
fc19f381b3828a Stefan Haberland 2009-03-26 1923 "reason=%s\n", errorstring);
8e09f21574ea30 Stefan Weinhuber 2008-01-26 1924 BUG();
d54853ef8cb172 Martin Schwidefsky 2007-02-05 1925 }
5c618c0cf451f1 Sebastian Ott 2018-05-24 1926 if (cqr->callback)
5c618c0cf451f1 Sebastian Ott 2018-05-24 1927 cqr->callback(cqr, cqr->callback_data);
5c618c0cf451f1 Sebastian Ott 2018-05-24 1928 }
5c618c0cf451f1 Sebastian Ott 2018-05-24 1929
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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