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Date: Sat, 11 Sep 2021 20:17:08 +0800
From: kernel test robot <lkp@...el.com>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: drivers/infiniband/hw/qib/qib_sysfs.c:413:1: error: static_assert
expression is not an integral constant expression
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 926de8c4326c14fcf35f1de142019043597a4fac
commit: 84f969e1c48ed3825986e91a0786e363d57f69d1 IB/qib: Fix null pointer subtraction compiler warning
date: 3 days ago
config: x86_64-randconfig-a014-20210911 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 261cbe98c38f8c1ee1a482fe76511110e790f58a)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=84f969e1c48ed3825986e91a0786e363d57f69d1
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 84f969e1c48ed3825986e91a0786e363d57f69d1
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
>> drivers/infiniband/hw/qib/qib_sysfs.c:413:1: error: static_assert expression is not an integral constant expression
QIB_DIAGC_ATTR(rc_resends);
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/qib/qib_sysfs.c:406:16: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
drivers/infiniband/hw/qib/qib_sysfs.c:413:1: note: cannot access field of null pointer
drivers/infiniband/hw/qib/qib_sysfs.c:406:43: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
^
drivers/infiniband/hw/qib/qib_sysfs.c:414:1: error: static_assert expression is not an integral constant expression
QIB_DIAGC_ATTR(seq_naks);
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/qib/qib_sysfs.c:406:16: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
drivers/infiniband/hw/qib/qib_sysfs.c:414:1: note: cannot access field of null pointer
drivers/infiniband/hw/qib/qib_sysfs.c:406:43: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
^
drivers/infiniband/hw/qib/qib_sysfs.c:415:1: error: static_assert expression is not an integral constant expression
QIB_DIAGC_ATTR(rdma_seq);
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/qib/qib_sysfs.c:406:16: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
drivers/infiniband/hw/qib/qib_sysfs.c:415:1: note: cannot access field of null pointer
drivers/infiniband/hw/qib/qib_sysfs.c:406:43: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
^
drivers/infiniband/hw/qib/qib_sysfs.c:416:1: error: static_assert expression is not an integral constant expression
QIB_DIAGC_ATTR(rnr_naks);
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/qib/qib_sysfs.c:406:16: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
drivers/infiniband/hw/qib/qib_sysfs.c:416:1: note: cannot access field of null pointer
drivers/infiniband/hw/qib/qib_sysfs.c:406:43: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
^
drivers/infiniband/hw/qib/qib_sysfs.c:417:1: error: static_assert expression is not an integral constant expression
QIB_DIAGC_ATTR(other_naks);
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/qib/qib_sysfs.c:406:16: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
drivers/infiniband/hw/qib/qib_sysfs.c:417:1: note: cannot access field of null pointer
drivers/infiniband/hw/qib/qib_sysfs.c:406:43: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
^
drivers/infiniband/hw/qib/qib_sysfs.c:418:1: error: static_assert expression is not an integral constant expression
QIB_DIAGC_ATTR(rc_timeouts);
^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/qib/qib_sysfs.c:406:16: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:50: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^~~~
drivers/infiniband/hw/qib/qib_sysfs.c:418:1: note: cannot access field of null pointer
drivers/infiniband/hw/qib/qib_sysfs.c:406:43: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
^
drivers/infiniband/hw/qib/qib_sysfs.c:419:1: error: static_assert expression is not an integral constant expression
QIB_DIAGC_ATTR(loop_pkts);
^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/qib/qib_sysfs.c:406:16: note: expanded from macro 'QIB_DIAGC_ATTR'
static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
vim +413 drivers/infiniband/hw/qib/qib_sysfs.c
f24a6d4887668c Harish Chegondi 2016-01-22 404
4a7aaf88c89f12 Jason Gunthorpe 2021-06-11 405 #define QIB_DIAGC_ATTR(N) \
84f969e1c48ed3 Jason Gunthorpe 2021-09-03 406 static_assert(&((struct qib_ibport *)0)->rvp.n_##N != (u64 *)NULL); \
f24a6d4887668c Harish Chegondi 2016-01-22 407 static struct qib_diagc_attr qib_diagc_attr_##N = { \
4a7aaf88c89f12 Jason Gunthorpe 2021-06-11 408 .attr = __ATTR(N, 0664, diagc_attr_show, diagc_attr_store), \
84f969e1c48ed3 Jason Gunthorpe 2021-09-03 409 .counter = \
84f969e1c48ed3 Jason Gunthorpe 2021-09-03 410 offsetof(struct qib_ibport, rvp.n_##N) / sizeof(u64) \
f931551bafe1f1 Ralph Campbell 2010-05-23 411 }
f931551bafe1f1 Ralph Campbell 2010-05-23 412
f931551bafe1f1 Ralph Campbell 2010-05-23 @413 QIB_DIAGC_ATTR(rc_resends);
f931551bafe1f1 Ralph Campbell 2010-05-23 414 QIB_DIAGC_ATTR(seq_naks);
f931551bafe1f1 Ralph Campbell 2010-05-23 415 QIB_DIAGC_ATTR(rdma_seq);
f931551bafe1f1 Ralph Campbell 2010-05-23 416 QIB_DIAGC_ATTR(rnr_naks);
f931551bafe1f1 Ralph Campbell 2010-05-23 417 QIB_DIAGC_ATTR(other_naks);
f931551bafe1f1 Ralph Campbell 2010-05-23 418 QIB_DIAGC_ATTR(rc_timeouts);
f931551bafe1f1 Ralph Campbell 2010-05-23 419 QIB_DIAGC_ATTR(loop_pkts);
f931551bafe1f1 Ralph Campbell 2010-05-23 420 QIB_DIAGC_ATTR(pkt_drops);
f931551bafe1f1 Ralph Campbell 2010-05-23 421 QIB_DIAGC_ATTR(dmawait);
f931551bafe1f1 Ralph Campbell 2010-05-23 422 QIB_DIAGC_ATTR(unaligned);
f931551bafe1f1 Ralph Campbell 2010-05-23 423 QIB_DIAGC_ATTR(rc_dupreq);
f931551bafe1f1 Ralph Campbell 2010-05-23 424 QIB_DIAGC_ATTR(rc_seqnak);
7199435414868b Kaike Wan 2019-09-11 425 QIB_DIAGC_ATTR(rc_crwaits);
f931551bafe1f1 Ralph Campbell 2010-05-23 426
:::::: The code at line 413 was first introduced by commit
:::::: f931551bafe1f10ded7f5282e2aa162c267a2e5d IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters
:::::: TO: Ralph Campbell <ralph.campbell@...gic.com>
:::::: CC: Roland Dreier <rolandd@...co.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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