4:12 p.m.
tree: https://android.googlesource.com/kernel/goldfish android-5.4
head: de63639926dcacc76a4030ad43592d80a8503ea9
commit: de63639926dcacc76a4030ad43592d80a8503ea9 [1/1] ANDROID: Incremental fs: Fix four
error-path bugs
config: i386-randconfig-s032-20200710 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-37-gc9676a3b-dirty
git checkout de63639926dcacc76a4030ad43592d80a8503ea9
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
> fs/incfs/data_mgmt.h:318:44: sparse: sparse: cast truncates bits
from constant value (5346434e49 becomes 46434e49)
fs/incfs/vfs.c:1257:48: sparse:
sparse: non size-preserving integer to pointer cast
fs/incfs/vfs.c:2181:23: sparse: sparse: cast truncates bits from constant value
(5346434e49 becomes 46434e49)
vim +318 fs/incfs/data_mgmt.h
295
296 /*
297 * Collects pending reads and saves them into the array (reads/reads_size).
298 * Only reads with serial_number > sn_lowerbound are reported.
299 * Returns how many reads were saved into the array.
300 */
301 int incfs_collect_pending_reads(struct mount_info *mi, int sn_lowerbound,
302 struct incfs_pending_read_info *reads,
303 int reads_size);
304
305 int incfs_collect_logged_reads(struct mount_info *mi,
306 struct read_log_state *start_state,
307 struct incfs_pending_read_info *reads,
308 int reads_size);
309 struct read_log_state incfs_get_log_state(struct mount_info *mi);
310 int incfs_get_uncollected_logs_count(struct mount_info *mi,
311 const struct read_log_state *state);
312
313 static inline struct inode_info *get_incfs_node(struct inode *inode)
314 {
315 if (!inode)
316 return NULL;
317
318 if (inode->i_sb->s_magic != (long) INCFS_MAGIC_NUMBER) {
319 /* This inode doesn't belong to us. */
320 pr_warn_once("incfs: %s on an alien inode.", __func__);
321 return NULL;
322 }
323
324 return container_of(inode, struct inode_info, n_vfs_inode);
325 }
326
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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org