CC: [email protected] TO: Todd Kjos <[email protected]> tree: https://android.googlesource.com/kernel/goldfish android-5.4 head: 0dccdc03e008291c781aa70498ae4750df363aba commit: a1423568e2aecd27a202e7053945905dddcc6045 [2/3] ANDROID: dm: add support for passing through derive_raw_secret :::::: branch date: 3 months ago :::::: commit date: 3 months ago config: x86_64-randconfig-s032-20200609 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.1-247-gcadbd124-dirty git checkout a1423568e2aecd27a202e7053945905dddcc6045 # save the attached .config to linux build tree make W=1 C=1 ARCH=x86_64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> sparse warnings: (new ones prefixed by >>) drivers/md/dm.c:520:12: sparse: sparse: context imbalance in 'dm_prepare_ioctl' - wrong count at exit drivers/md/dm.c:555:13: sparse: sparse: context imbalance in 'dm_unprepare_ioctl' - wrong count at exit drivers/md/dm.c:1136:13: sparse: sparse: context imbalance in 'dm_dax_supported' - different lock contexts for basic block drivers/md/dm.c:2281:12: sparse: sparse: context imbalance in 'dm_keyslot_evict' - different lock contexts for basic block >> drivers/md/dm.c:2340:12: sparse: sparse: context imbalance in >> 'dm_derive_raw_secret' - different lock contexts for basic block arch/x86/include/asm/bitops.h:77:37: sparse: sparse: cast truncates bits from constant value (ffffff7f becomes 7f) git remote add android-goldfish https://android.googlesource.com/kernel/goldfish git remote update android-goldfish git checkout a1423568e2aecd27a202e7053945905dddcc6045 vim +/dm_derive_raw_secret +2340 drivers/md/dm.c a1423568e2aecd Barani Muthukumaran 2020-02-06 2334 a1423568e2aecd Barani Muthukumaran 2020-02-06 2335 /* a1423568e2aecd Barani Muthukumaran 2020-02-06 2336 * Retrieve the raw_secret from the underlying device. Given that a1423568e2aecd Barani Muthukumaran 2020-02-06 2337 * only only one raw_secret can exist for a particular wrappedkey, a1423568e2aecd Barani Muthukumaran 2020-02-06 2338 * retrieve it only from the first device that supports derive_raw_secret() a1423568e2aecd Barani Muthukumaran 2020-02-06 2339 */ a1423568e2aecd Barani Muthukumaran 2020-02-06 @2340 static int dm_derive_raw_secret(struct keyslot_manager *ksm, a1423568e2aecd Barani Muthukumaran 2020-02-06 2341 const u8 *wrapped_key, a1423568e2aecd Barani Muthukumaran 2020-02-06 2342 unsigned int wrapped_key_size, a1423568e2aecd Barani Muthukumaran 2020-02-06 2343 u8 *secret, unsigned int secret_size) a1423568e2aecd Barani Muthukumaran 2020-02-06 2344 { a1423568e2aecd Barani Muthukumaran 2020-02-06 2345 struct mapped_device *md = keyslot_manager_private(ksm); a1423568e2aecd Barani Muthukumaran 2020-02-06 2346 struct dm_derive_raw_secret_args args = { a1423568e2aecd Barani Muthukumaran 2020-02-06 2347 .wrapped_key = wrapped_key, a1423568e2aecd Barani Muthukumaran 2020-02-06 2348 .wrapped_key_size = wrapped_key_size, a1423568e2aecd Barani Muthukumaran 2020-02-06 2349 .secret = secret, a1423568e2aecd Barani Muthukumaran 2020-02-06 2350 .secret_size = secret_size, a1423568e2aecd Barani Muthukumaran 2020-02-06 2351 .err = -EOPNOTSUPP, a1423568e2aecd Barani Muthukumaran 2020-02-06 2352 }; a1423568e2aecd Barani Muthukumaran 2020-02-06 2353 struct dm_table *t; a1423568e2aecd Barani Muthukumaran 2020-02-06 2354 int srcu_idx; a1423568e2aecd Barani Muthukumaran 2020-02-06 2355 int i; a1423568e2aecd Barani Muthukumaran 2020-02-06 2356 struct dm_target *ti; a1423568e2aecd Barani Muthukumaran 2020-02-06 2357 a1423568e2aecd Barani Muthukumaran 2020-02-06 2358 t = dm_get_live_table(md, &srcu_idx); a1423568e2aecd Barani Muthukumaran 2020-02-06 2359 if (!t) a1423568e2aecd Barani Muthukumaran 2020-02-06 2360 return -EOPNOTSUPP; a1423568e2aecd Barani Muthukumaran 2020-02-06 2361 for (i = 0; i < dm_table_get_num_targets(t); i++) { a1423568e2aecd Barani Muthukumaran 2020-02-06 2362 ti = dm_table_get_target(t, i); a1423568e2aecd Barani Muthukumaran 2020-02-06 2363 if (!ti->type->iterate_devices) a1423568e2aecd Barani Muthukumaran 2020-02-06 2364 continue; a1423568e2aecd Barani Muthukumaran 2020-02-06 2365 ti->type->iterate_devices(ti, dm_derive_raw_secret_callback, a1423568e2aecd Barani Muthukumaran 2020-02-06 2366 &args); a1423568e2aecd Barani Muthukumaran 2020-02-06 2367 if (!args.err) a1423568e2aecd Barani Muthukumaran 2020-02-06 2368 break; a1423568e2aecd Barani Muthukumaran 2020-02-06 2369 } a1423568e2aecd Barani Muthukumaran 2020-02-06 2370 dm_put_live_table(md, srcu_idx); a1423568e2aecd Barani Muthukumaran 2020-02-06 2371 return args.err; a1423568e2aecd Barani Muthukumaran 2020-02-06 2372 } a1423568e2aecd Barani Muthukumaran 2020-02-06 2373 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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