[android-goldfish:android-5.4 1/1] fs/incfs/data_mgmt.h:318:44: sparse: sparse: cast truncates bits from constant value (5346434e49 becomes 46434e49)

* [android-goldfish:android-5.4 1/1] fs/incfs/data_mgmt.h:318:44: sparse: sparse: cast truncates bits from constant value (5346434e49 becomes 46434e49)
@ 2020-09-23  7:51 kernel test robot
  0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2020-09-23  7:51 UTC (permalink / raw)
  To: kbuild-all

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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-s002-20200923 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.2-201-g24bdaac6-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@intel.com>


sparse warnings: (new ones prefixed by >>)

   fs/incfs/data_mgmt.c: note: in included file:
>> fs/incfs/data_mgmt.h:318:44: sparse: sparse: cast truncates bits from constant value (5346434e49 becomes 46434e49)
--
   fs/incfs/vfs.c: note: in included file:
>> 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)

git remote add android-goldfish https://android.googlesource.com/kernel/goldfish
git fetch --no-tags android-goldfish android-5.4
git checkout de63639926dcacc76a4030ad43592d80a8503ea9
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	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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