From: kernel test robot <lkp@intel.com>
To: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org,
Anna Schumaker <Anna.Schumaker@Netapp.com>
Subject: [anna-nfs:linux-next 12/21] fs/nfs/callback_xdr.c:274:8: warning: result of comparison of constant 658812288346769700 with expression of type 'uint32_t' (aka 'unsigned int') is always false
Date: Fri, 7 Jan 2022 01:47:37 +0800 [thread overview]
Message-ID: <202201070108.OWIDTV5G-lkp@intel.com> (raw)
tree: git://git.linux-nfs.org/projects/anna/linux-nfs.git linux-next
head: 3e0a5877834cb4899478873b0f6ccc604ab33d28
commit: 9c2f14caf2bfc8b25b9d755aa77a37355d00c7ce [12/21] NFSv4.1: Fix uninitialised variable in devicenotify
config: x86_64-buildonly-randconfig-r001-20220106 (https://download.01.org/0day-ci/archive/20220107/202201070108.OWIDTV5G-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project ca7ffe09dc6e525109e3cd570cc5182ce568be13)
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
git remote add anna-nfs git://git.linux-nfs.org/projects/anna/linux-nfs.git
git fetch --no-tags anna-nfs linux-next
git checkout 9c2f14caf2bfc8b25b9d755aa77a37355d00c7ce
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash fs/nfs/ sound/x86/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> fs/nfs/callback_xdr.c:274:8: warning: result of comparison of constant 658812288346769700 with expression of type 'uint32_t' (aka 'unsigned int') is always false [-Wtautological-constant-out-of-range-compare]
if (n > ULONG_MAX / sizeof(*args->devs)) {
~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
vim +274 fs/nfs/callback_xdr.c
f2a625616045fe Fred Isaman 2011-01-06 254
1be5683b03a766 Marc Eshel 2011-05-22 255 static
1be5683b03a766 Marc Eshel 2011-05-22 256 __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
1be5683b03a766 Marc Eshel 2011-05-22 257 struct xdr_stream *xdr,
f4dac4ade5ba4e Christoph Hellwig 2017-05-11 258 void *argp)
1be5683b03a766 Marc Eshel 2011-05-22 259 {
f4dac4ade5ba4e Christoph Hellwig 2017-05-11 260 struct cb_devicenotifyargs *args = argp;
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 261 uint32_t tmp, n, i;
1be5683b03a766 Marc Eshel 2011-05-22 262 __be32 *p;
1be5683b03a766 Marc Eshel 2011-05-22 263 __be32 status = 0;
1be5683b03a766 Marc Eshel 2011-05-22 264
1be5683b03a766 Marc Eshel 2011-05-22 265 /* Num of device notifications */
eb72f484a5eb94 Chuck Lever 2019-02-11 266 p = xdr_inline_decode(xdr, sizeof(uint32_t));
1be5683b03a766 Marc Eshel 2011-05-22 267 if (unlikely(p == NULL)) {
1be5683b03a766 Marc Eshel 2011-05-22 268 status = htonl(NFS4ERR_BADXDR);
1be5683b03a766 Marc Eshel 2011-05-22 269 goto out;
1be5683b03a766 Marc Eshel 2011-05-22 270 }
1be5683b03a766 Marc Eshel 2011-05-22 271 n = ntohl(*p++);
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 272 if (n == 0)
1be5683b03a766 Marc Eshel 2011-05-22 273 goto out;
363e0df057ea8d Dan Carpenter 2012-01-12 @274 if (n > ULONG_MAX / sizeof(*args->devs)) {
363e0df057ea8d Dan Carpenter 2012-01-12 275 status = htonl(NFS4ERR_BADXDR);
363e0df057ea8d Dan Carpenter 2012-01-12 276 goto out;
363e0df057ea8d Dan Carpenter 2012-01-12 277 }
1be5683b03a766 Marc Eshel 2011-05-22 278
a4f743a6bb2016 Trond Myklebust 2015-02-11 279 args->devs = kmalloc_array(n, sizeof(*args->devs), GFP_KERNEL);
1be5683b03a766 Marc Eshel 2011-05-22 280 if (!args->devs) {
1be5683b03a766 Marc Eshel 2011-05-22 281 status = htonl(NFS4ERR_DELAY);
1be5683b03a766 Marc Eshel 2011-05-22 282 goto out;
1be5683b03a766 Marc Eshel 2011-05-22 283 }
1be5683b03a766 Marc Eshel 2011-05-22 284
1be5683b03a766 Marc Eshel 2011-05-22 285 /* Decode each dev notification */
1be5683b03a766 Marc Eshel 2011-05-22 286 for (i = 0; i < n; i++) {
1be5683b03a766 Marc Eshel 2011-05-22 287 struct cb_devicenotifyitem *dev = &args->devs[i];
1be5683b03a766 Marc Eshel 2011-05-22 288
eb72f484a5eb94 Chuck Lever 2019-02-11 289 p = xdr_inline_decode(xdr, (4 * sizeof(uint32_t)) +
eb72f484a5eb94 Chuck Lever 2019-02-11 290 NFS4_DEVICEID4_SIZE);
1be5683b03a766 Marc Eshel 2011-05-22 291 if (unlikely(p == NULL)) {
1be5683b03a766 Marc Eshel 2011-05-22 292 status = htonl(NFS4ERR_BADXDR);
1be5683b03a766 Marc Eshel 2011-05-22 293 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 294 }
1be5683b03a766 Marc Eshel 2011-05-22 295
1be5683b03a766 Marc Eshel 2011-05-22 296 tmp = ntohl(*p++); /* bitmap size */
1be5683b03a766 Marc Eshel 2011-05-22 297 if (tmp != 1) {
1be5683b03a766 Marc Eshel 2011-05-22 298 status = htonl(NFS4ERR_INVAL);
1be5683b03a766 Marc Eshel 2011-05-22 299 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 300 }
1be5683b03a766 Marc Eshel 2011-05-22 301 dev->cbd_notify_type = ntohl(*p++);
1be5683b03a766 Marc Eshel 2011-05-22 302 if (dev->cbd_notify_type != NOTIFY_DEVICEID4_CHANGE &&
1be5683b03a766 Marc Eshel 2011-05-22 303 dev->cbd_notify_type != NOTIFY_DEVICEID4_DELETE) {
1be5683b03a766 Marc Eshel 2011-05-22 304 status = htonl(NFS4ERR_INVAL);
1be5683b03a766 Marc Eshel 2011-05-22 305 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 306 }
1be5683b03a766 Marc Eshel 2011-05-22 307
1be5683b03a766 Marc Eshel 2011-05-22 308 tmp = ntohl(*p++); /* opaque size */
1be5683b03a766 Marc Eshel 2011-05-22 309 if (((dev->cbd_notify_type == NOTIFY_DEVICEID4_CHANGE) &&
1be5683b03a766 Marc Eshel 2011-05-22 310 (tmp != NFS4_DEVICEID4_SIZE + 8)) ||
1be5683b03a766 Marc Eshel 2011-05-22 311 ((dev->cbd_notify_type == NOTIFY_DEVICEID4_DELETE) &&
1be5683b03a766 Marc Eshel 2011-05-22 312 (tmp != NFS4_DEVICEID4_SIZE + 4))) {
1be5683b03a766 Marc Eshel 2011-05-22 313 status = htonl(NFS4ERR_INVAL);
1be5683b03a766 Marc Eshel 2011-05-22 314 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 315 }
1be5683b03a766 Marc Eshel 2011-05-22 316 dev->cbd_layout_type = ntohl(*p++);
1be5683b03a766 Marc Eshel 2011-05-22 317 memcpy(dev->cbd_dev_id.data, p, NFS4_DEVICEID4_SIZE);
1be5683b03a766 Marc Eshel 2011-05-22 318 p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE);
1be5683b03a766 Marc Eshel 2011-05-22 319
1be5683b03a766 Marc Eshel 2011-05-22 320 if (dev->cbd_layout_type == NOTIFY_DEVICEID4_CHANGE) {
eb72f484a5eb94 Chuck Lever 2019-02-11 321 p = xdr_inline_decode(xdr, sizeof(uint32_t));
1be5683b03a766 Marc Eshel 2011-05-22 322 if (unlikely(p == NULL)) {
1be5683b03a766 Marc Eshel 2011-05-22 323 status = htonl(NFS4ERR_BADXDR);
1be5683b03a766 Marc Eshel 2011-05-22 324 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 325 }
1be5683b03a766 Marc Eshel 2011-05-22 326 dev->cbd_immediate = ntohl(*p++);
1be5683b03a766 Marc Eshel 2011-05-22 327 } else {
1be5683b03a766 Marc Eshel 2011-05-22 328 dev->cbd_immediate = 0;
1be5683b03a766 Marc Eshel 2011-05-22 329 }
1be5683b03a766 Marc Eshel 2011-05-22 330
1be5683b03a766 Marc Eshel 2011-05-22 331 dprintk("%s: type %d layout 0x%x immediate %d\n",
1be5683b03a766 Marc Eshel 2011-05-22 332 __func__, dev->cbd_notify_type, dev->cbd_layout_type,
1be5683b03a766 Marc Eshel 2011-05-22 333 dev->cbd_immediate);
1be5683b03a766 Marc Eshel 2011-05-22 334 }
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 335 args->ndevs = n;
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 336 dprintk("%s: ndevs %d\n", __func__, args->ndevs);
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 337 return 0;
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 338 err:
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 339 kfree(args->devs);
1be5683b03a766 Marc Eshel 2011-05-22 340 out:
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 341 args->devs = NULL;
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 342 args->ndevs = 0;
1be5683b03a766 Marc Eshel 2011-05-22 343 dprintk("%s: status %d ndevs %d\n",
1be5683b03a766 Marc Eshel 2011-05-22 344 __func__, ntohl(status), args->ndevs);
1be5683b03a766 Marc Eshel 2011-05-22 345 return status;
1be5683b03a766 Marc Eshel 2011-05-22 346 }
1be5683b03a766 Marc Eshel 2011-05-22 347
:::::: The code at line 274 was first introduced by commit
:::::: 363e0df057ea8da539645fe4c3c227e3d44054cc nfs: check for integer overflow in decode_devicenotify_args()
:::::: TO: Dan Carpenter <dan.carpenter@oracle.com>
:::::: CC: Trond Myklebust <Trond.Myklebust@netapp.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: [anna-nfs:linux-next 12/21] fs/nfs/callback_xdr.c:274:8: warning: result of comparison of constant 658812288346769700 with expression of type 'uint32_t' (aka 'unsigned int') is always false
Date: Fri, 07 Jan 2022 01:47:37 +0800 [thread overview]
Message-ID: <202201070108.OWIDTV5G-lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 9128 bytes --]
tree: git://git.linux-nfs.org/projects/anna/linux-nfs.git linux-next
head: 3e0a5877834cb4899478873b0f6ccc604ab33d28
commit: 9c2f14caf2bfc8b25b9d755aa77a37355d00c7ce [12/21] NFSv4.1: Fix uninitialised variable in devicenotify
config: x86_64-buildonly-randconfig-r001-20220106 (https://download.01.org/0day-ci/archive/20220107/202201070108.OWIDTV5G-lkp(a)intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project ca7ffe09dc6e525109e3cd570cc5182ce568be13)
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
git remote add anna-nfs git://git.linux-nfs.org/projects/anna/linux-nfs.git
git fetch --no-tags anna-nfs linux-next
git checkout 9c2f14caf2bfc8b25b9d755aa77a37355d00c7ce
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash fs/nfs/ sound/x86/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> fs/nfs/callback_xdr.c:274:8: warning: result of comparison of constant 658812288346769700 with expression of type 'uint32_t' (aka 'unsigned int') is always false [-Wtautological-constant-out-of-range-compare]
if (n > ULONG_MAX / sizeof(*args->devs)) {
~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
vim +274 fs/nfs/callback_xdr.c
f2a625616045fe Fred Isaman 2011-01-06 254
1be5683b03a766 Marc Eshel 2011-05-22 255 static
1be5683b03a766 Marc Eshel 2011-05-22 256 __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
1be5683b03a766 Marc Eshel 2011-05-22 257 struct xdr_stream *xdr,
f4dac4ade5ba4e Christoph Hellwig 2017-05-11 258 void *argp)
1be5683b03a766 Marc Eshel 2011-05-22 259 {
f4dac4ade5ba4e Christoph Hellwig 2017-05-11 260 struct cb_devicenotifyargs *args = argp;
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 261 uint32_t tmp, n, i;
1be5683b03a766 Marc Eshel 2011-05-22 262 __be32 *p;
1be5683b03a766 Marc Eshel 2011-05-22 263 __be32 status = 0;
1be5683b03a766 Marc Eshel 2011-05-22 264
1be5683b03a766 Marc Eshel 2011-05-22 265 /* Num of device notifications */
eb72f484a5eb94 Chuck Lever 2019-02-11 266 p = xdr_inline_decode(xdr, sizeof(uint32_t));
1be5683b03a766 Marc Eshel 2011-05-22 267 if (unlikely(p == NULL)) {
1be5683b03a766 Marc Eshel 2011-05-22 268 status = htonl(NFS4ERR_BADXDR);
1be5683b03a766 Marc Eshel 2011-05-22 269 goto out;
1be5683b03a766 Marc Eshel 2011-05-22 270 }
1be5683b03a766 Marc Eshel 2011-05-22 271 n = ntohl(*p++);
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 272 if (n == 0)
1be5683b03a766 Marc Eshel 2011-05-22 273 goto out;
363e0df057ea8d Dan Carpenter 2012-01-12 @274 if (n > ULONG_MAX / sizeof(*args->devs)) {
363e0df057ea8d Dan Carpenter 2012-01-12 275 status = htonl(NFS4ERR_BADXDR);
363e0df057ea8d Dan Carpenter 2012-01-12 276 goto out;
363e0df057ea8d Dan Carpenter 2012-01-12 277 }
1be5683b03a766 Marc Eshel 2011-05-22 278
a4f743a6bb2016 Trond Myklebust 2015-02-11 279 args->devs = kmalloc_array(n, sizeof(*args->devs), GFP_KERNEL);
1be5683b03a766 Marc Eshel 2011-05-22 280 if (!args->devs) {
1be5683b03a766 Marc Eshel 2011-05-22 281 status = htonl(NFS4ERR_DELAY);
1be5683b03a766 Marc Eshel 2011-05-22 282 goto out;
1be5683b03a766 Marc Eshel 2011-05-22 283 }
1be5683b03a766 Marc Eshel 2011-05-22 284
1be5683b03a766 Marc Eshel 2011-05-22 285 /* Decode each dev notification */
1be5683b03a766 Marc Eshel 2011-05-22 286 for (i = 0; i < n; i++) {
1be5683b03a766 Marc Eshel 2011-05-22 287 struct cb_devicenotifyitem *dev = &args->devs[i];
1be5683b03a766 Marc Eshel 2011-05-22 288
eb72f484a5eb94 Chuck Lever 2019-02-11 289 p = xdr_inline_decode(xdr, (4 * sizeof(uint32_t)) +
eb72f484a5eb94 Chuck Lever 2019-02-11 290 NFS4_DEVICEID4_SIZE);
1be5683b03a766 Marc Eshel 2011-05-22 291 if (unlikely(p == NULL)) {
1be5683b03a766 Marc Eshel 2011-05-22 292 status = htonl(NFS4ERR_BADXDR);
1be5683b03a766 Marc Eshel 2011-05-22 293 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 294 }
1be5683b03a766 Marc Eshel 2011-05-22 295
1be5683b03a766 Marc Eshel 2011-05-22 296 tmp = ntohl(*p++); /* bitmap size */
1be5683b03a766 Marc Eshel 2011-05-22 297 if (tmp != 1) {
1be5683b03a766 Marc Eshel 2011-05-22 298 status = htonl(NFS4ERR_INVAL);
1be5683b03a766 Marc Eshel 2011-05-22 299 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 300 }
1be5683b03a766 Marc Eshel 2011-05-22 301 dev->cbd_notify_type = ntohl(*p++);
1be5683b03a766 Marc Eshel 2011-05-22 302 if (dev->cbd_notify_type != NOTIFY_DEVICEID4_CHANGE &&
1be5683b03a766 Marc Eshel 2011-05-22 303 dev->cbd_notify_type != NOTIFY_DEVICEID4_DELETE) {
1be5683b03a766 Marc Eshel 2011-05-22 304 status = htonl(NFS4ERR_INVAL);
1be5683b03a766 Marc Eshel 2011-05-22 305 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 306 }
1be5683b03a766 Marc Eshel 2011-05-22 307
1be5683b03a766 Marc Eshel 2011-05-22 308 tmp = ntohl(*p++); /* opaque size */
1be5683b03a766 Marc Eshel 2011-05-22 309 if (((dev->cbd_notify_type == NOTIFY_DEVICEID4_CHANGE) &&
1be5683b03a766 Marc Eshel 2011-05-22 310 (tmp != NFS4_DEVICEID4_SIZE + 8)) ||
1be5683b03a766 Marc Eshel 2011-05-22 311 ((dev->cbd_notify_type == NOTIFY_DEVICEID4_DELETE) &&
1be5683b03a766 Marc Eshel 2011-05-22 312 (tmp != NFS4_DEVICEID4_SIZE + 4))) {
1be5683b03a766 Marc Eshel 2011-05-22 313 status = htonl(NFS4ERR_INVAL);
1be5683b03a766 Marc Eshel 2011-05-22 314 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 315 }
1be5683b03a766 Marc Eshel 2011-05-22 316 dev->cbd_layout_type = ntohl(*p++);
1be5683b03a766 Marc Eshel 2011-05-22 317 memcpy(dev->cbd_dev_id.data, p, NFS4_DEVICEID4_SIZE);
1be5683b03a766 Marc Eshel 2011-05-22 318 p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE);
1be5683b03a766 Marc Eshel 2011-05-22 319
1be5683b03a766 Marc Eshel 2011-05-22 320 if (dev->cbd_layout_type == NOTIFY_DEVICEID4_CHANGE) {
eb72f484a5eb94 Chuck Lever 2019-02-11 321 p = xdr_inline_decode(xdr, sizeof(uint32_t));
1be5683b03a766 Marc Eshel 2011-05-22 322 if (unlikely(p == NULL)) {
1be5683b03a766 Marc Eshel 2011-05-22 323 status = htonl(NFS4ERR_BADXDR);
1be5683b03a766 Marc Eshel 2011-05-22 324 goto err;
1be5683b03a766 Marc Eshel 2011-05-22 325 }
1be5683b03a766 Marc Eshel 2011-05-22 326 dev->cbd_immediate = ntohl(*p++);
1be5683b03a766 Marc Eshel 2011-05-22 327 } else {
1be5683b03a766 Marc Eshel 2011-05-22 328 dev->cbd_immediate = 0;
1be5683b03a766 Marc Eshel 2011-05-22 329 }
1be5683b03a766 Marc Eshel 2011-05-22 330
1be5683b03a766 Marc Eshel 2011-05-22 331 dprintk("%s: type %d layout 0x%x immediate %d\n",
1be5683b03a766 Marc Eshel 2011-05-22 332 __func__, dev->cbd_notify_type, dev->cbd_layout_type,
1be5683b03a766 Marc Eshel 2011-05-22 333 dev->cbd_immediate);
1be5683b03a766 Marc Eshel 2011-05-22 334 }
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 335 args->ndevs = n;
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 336 dprintk("%s: ndevs %d\n", __func__, args->ndevs);
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 337 return 0;
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 338 err:
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 339 kfree(args->devs);
1be5683b03a766 Marc Eshel 2011-05-22 340 out:
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 341 args->devs = NULL;
9c2f14caf2bfc8 Trond Myklebust 2022-01-03 342 args->ndevs = 0;
1be5683b03a766 Marc Eshel 2011-05-22 343 dprintk("%s: status %d ndevs %d\n",
1be5683b03a766 Marc Eshel 2011-05-22 344 __func__, ntohl(status), args->ndevs);
1be5683b03a766 Marc Eshel 2011-05-22 345 return status;
1be5683b03a766 Marc Eshel 2011-05-22 346 }
1be5683b03a766 Marc Eshel 2011-05-22 347
:::::: The code at line 274 was first introduced by commit
:::::: 363e0df057ea8da539645fe4c3c227e3d44054cc nfs: check for integer overflow in decode_devicenotify_args()
:::::: TO: Dan Carpenter <dan.carpenter@oracle.com>
:::::: CC: Trond Myklebust <Trond.Myklebust@netapp.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
next reply other threads:[~2022-01-06 17:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-06 17:47 kernel test robot [this message]
2022-01-06 17:47 ` [anna-nfs:linux-next 12/21] fs/nfs/callback_xdr.c:274:8: warning: result of comparison of constant 658812288346769700 with expression of type 'uint32_t' (aka 'unsigned int') is always false kernel test robot
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