Re: [PATCH -next v2] sunrpc: Use no_printk() in dfprintk*() dummies

kernel test robot
2023-10-20T00:16:50Z

Hi Geert,

kernel test robot noticed the following build errors:

[auto build test ERROR on next-20231016]

url: https://github.com/intel-lab-lkp/linux/commits/Geert-Uytterhoeven/sunrpc-Use-no_printk-in-dfprintk-dummies/20231017-104813
base: next-20231016
patch link: https://lore.kernel.org/r/a93de2e8afa826745746b00fc5f64e513df5d52f.1697104757.git.geert%2Brenesas%40glider.be
patch subject: [PATCH -next v2] sunrpc: Use no_printk() in dfprintk*() dummies
config: x86_64-rhel-8.3 (https://download.01.org/0day-ci/archive/20231020/202310200734.I6x6UCe1-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231020/202310200734.I6x6UCe1-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310200734.I6x6UCe1-lkp@intel.com/

All errors (new ones prefixed by >>):

In file included from include/linux/kernel.h:31,
from arch/x86/include/asm/percpu.h:27,
from arch/x86/include/asm/current.h:10,
from include/linux/sched.h:12,
from include/linux/sunrpc/svcauth_gss.h:12,
from fs/nfsd/nfsfh.c:13:
fs/nfsd/nfsfh.c: In function 'nfsd_setuser_and_check_port':
>> fs/nfsd/nfsfh.c:111:47: error: 'buf' undeclared (first use in this function)
111 | svc_print_addr(rqstp, buf, sizeof(buf)));
| ^~~
include/linux/printk.h:427:33: note: in definition of macro 'printk_index_wrap'
427 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/printk.h:129:17: note: in expansion of macro 'printk'
129 | printk(fmt, ##__VA_ARGS__); \
| ^~~~~~
include/linux/sunrpc/debug.h:70:41: note: in expansion of macro 'no_printk'
70 | # define dfprintk(fac, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
| ^~~~~~~~~
include/linux/sunrpc/debug.h:25:9: note: in expansion of macro 'dfprintk'
25 | dfprintk(FACILITY, fmt, ##__VA_ARGS__)
| ^~~~~~~~
fs/nfsd/nfsfh.c:110:17: note: in expansion of macro 'dprintk'
110 | dprintk("nfsd: request from insecure port %s!\n",
| ^~~~~~~
fs/nfsd/nfsfh.c:111:47: note: each undeclared identifier is reported only once for each function it appears in
111 | svc_print_addr(rqstp, buf, sizeof(buf)));
| ^~~
include/linux/printk.h:427:33: note: in definition of macro 'printk_index_wrap'
427 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~~~~~~~~
include/linux/printk.h:129:17: note: in expansion of macro 'printk'
129 | printk(fmt, ##__VA_ARGS__); \
| ^~~~~~
include/linux/sunrpc/debug.h:70:41: note: in expansion of macro 'no_printk'
70 | # define dfprintk(fac, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
| ^~~~~~~~~
include/linux/sunrpc/debug.h:25:9: note: in expansion of macro 'dfprintk'
25 | dfprintk(FACILITY, fmt, ##__VA_ARGS__)
| ^~~~~~~~
fs/nfsd/nfsfh.c:110:17: note: in expansion of macro 'dprintk'
110 | dprintk("nfsd: request from insecure port %s!\n",
| ^~~~~~~

vim +/buf +111 fs/nfsd/nfsfh.c

9d7ed1355db5b0 J. Bruce Fields 2018-03-08 101
6fa02839bf9412 J. Bruce Fields 2007-11-12 102 static __be32 nfsd_setuser_and_check_port(struct svc_rqst *rqstp,
6fa02839bf9412 J. Bruce Fields 2007-11-12 103 struct svc_export *exp)
6fa02839bf9412 J. Bruce Fields 2007-11-12 104 {
12045a6ee9908b J. Bruce Fields 2009-12-08 105 int flags = nfsexp_flags(rqstp, exp);
12045a6ee9908b J. Bruce Fields 2009-12-08 106
6fa02839bf9412 J. Bruce Fields 2007-11-12 107 /* Check if the request originated from a secure port. */
9d7ed1355db5b0 J. Bruce Fields 2018-03-08 108 if (!nfsd_originating_port_ok(rqstp, flags)) {
5216a8e70e25b0 Pavel Emelyanov 2008-02-21 109 RPC_IFDEBUG(char buf[RPC_MAX_ADDRBUFLEN]);
a48fd0f9f77b6e Kinglong Mee 2014-05-29 110 dprintk("nfsd: request from insecure port %s!\n",
6fa02839bf9412 J. Bruce Fields 2007-11-12 @111 svc_print_addr(rqstp, buf, sizeof(buf)));
6fa02839bf9412 J. Bruce Fields 2007-11-12 112 return nfserr_perm;
6fa02839bf9412 J. Bruce Fields 2007-11-12 113 }
6fa02839bf9412 J. Bruce Fields 2007-11-12 114
6fa02839bf9412 J. Bruce Fields 2007-11-12 115 /* Set user creds for this exportpoint */
6fa02839bf9412 J. Bruce Fields 2007-11-12 116 return nfserrno(nfsd_setuser(rqstp, exp));
6fa02839bf9412 J. Bruce Fields 2007-11-12 117 }
6fa02839bf9412 J. Bruce Fields 2007-11-12 118

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