CC: [email protected] CC: [email protected] BCC: [email protected] CC: [email protected] TO: Giovanni Cabiddu <[email protected]> CC: Herbert Xu <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 028192fea1de083f4f12bfb1eb7c4d7beb5c8ecd commit: 8893d27ffcaf6ec6267038a177cb87bcde4dd3de crypto: qat - disable registration of algorithms date: 5 weeks ago :::::: branch date: 20 hours ago :::::: commit date: 5 weeks ago config: x86_64-randconfig-c007-20220411 (https://download.01.org/0day-ci/archive/20220416/[email protected]/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c6e83f560f06cdfe8aa47b248d8bdc58f947274b) 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=8893d27ffcaf6ec6267038a177cb87bcde4dd3de git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 8893d27ffcaf6ec6267038a177cb87bcde4dd3de # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) include/asm-generic/rwonce.h:60:2: note: expanded from macro 'WRITE_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:21: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:313:3: note: expanded from macro '__native_word' (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \ ^ include/linux/skbuff.h:2167:2: note: Left side of '||' is false WRITE_ONCE(next->prev, prev); ^ include/asm-generic/rwonce.h:60:2: note: expanded from macro 'WRITE_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:21: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:313:3: note: expanded from macro '__native_word' (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \ ^ include/linux/skbuff.h:2167:2: note: Left side of '||' is false WRITE_ONCE(next->prev, prev); ^ include/asm-generic/rwonce.h:60:2: note: expanded from macro 'WRITE_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:21: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:313:3: note: expanded from macro '__native_word' (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \ ^ include/linux/skbuff.h:2167:2: note: Left side of '||' is true WRITE_ONCE(next->prev, prev); ^ include/asm-generic/rwonce.h:60:2: note: expanded from macro 'WRITE_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:38: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/skbuff.h:2167:2: note: Taking false branch WRITE_ONCE(next->prev, prev); ^ include/asm-generic/rwonce.h:60:2: note: expanded from macro 'WRITE_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:2: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:346:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:334:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:326:3: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^ include/linux/skbuff.h:2167:2: note: Loop condition is false. Exiting loop WRITE_ONCE(next->prev, prev); ^ include/asm-generic/rwonce.h:60:2: note: expanded from macro 'WRITE_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:2: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:346:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:334:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:318:2: note: expanded from macro '__compiletime_assert' do { \ ^ include/linux/skbuff.h:2167:2: note: Dereference of null pointer WRITE_ONCE(next->prev, prev); ^ include/asm-generic/rwonce.h:61:2: note: expanded from macro 'WRITE_ONCE' __WRITE_ONCE(x, val); \ ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:55:30: note: expanded from macro '__WRITE_ONCE' *(volatile typeof(x) *)&(x) = (val); \ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~ 2 warnings generated. drivers/mtd/devices/block2mtd.c:402:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy] strcpy(str, val); ^~~~~~ drivers/mtd/devices/block2mtd.c:402:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 strcpy(str, val); ^~~~~~ Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. >> drivers/crypto/qat/qat_4xxx/adf_drv.c:66:3: warning: Value stored to >> 'instances' is never read [clang-analyzer-deadcode.DeadStores] instances = min(cpus, banks / 2); ^ drivers/crypto/qat/qat_4xxx/adf_drv.c:66:3: note: Value stored to 'instances' is never read drivers/crypto/qat/qat_4xxx/adf_drv.c:68:3: warning: Value stored to 'instances' is never read [clang-analyzer-deadcode.DeadStores] instances = 0; ^ ~ drivers/crypto/qat/qat_4xxx/adf_drv.c:68:3: note: Value stored to 'instances' is never read instances = 0; ^ ~ 2 warnings generated. Suppressed 2 warnings (1 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (1 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (1 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. fs/cifs/ioctl.c:334:4: warning: Value stored to 'caps' is never read [clang-analyzer-deadcode.DeadStores] caps = le64_to_cpu(tcon->fsUnixInfo.Capability); ^ fs/cifs/ioctl.c:334:4: note: Value stored to 'caps' is never read Suppressed 1 warnings (1 with check filters). 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. fs/nfs/nfs4session.c:127:10: warning: The left operand of '==' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult] if (*p == NULL) { ^ fs/nfs/nfs4session.c:405:2: note: Loop condition is true. Entering loop body for (;;) { ^ fs/nfs/nfs4session.c:406:8: note: Calling 'nfs41_try_wake_next_slot_table_entry' if (!nfs41_try_wake_next_slot_table_entry(tbl)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4session.c:393:27: note: Calling 'nfs4_alloc_slot' struct nfs4_slot *slot = nfs4_alloc_slot(tbl); ^~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4session.c:247:2: note: Loop condition is false. Exiting loop dprintk("--> %s used_slots=%04lx highest_used=%u max_slots=%u\n", ^ include/linux/sunrpc/debug.h:25:2: note: expanded from macro 'dprintk' dfprintk(FACILITY, fmt, ##__VA_ARGS__) ^ include/linux/sunrpc/debug.h:70:34: note: expanded from macro 'dfprintk' # define dfprintk(fac, fmt, ...) do {} while (0) ^ fs/nfs/nfs4session.c:251:6: note: Assuming 'slotid' is <= field 'max_slotid' if (slotid <= tbl->max_slotid) { ^~~~~~~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4session.c:251:2: note: Taking true branch if (slotid <= tbl->max_slotid) { ^ fs/nfs/nfs4session.c:252:9: note: Calling 'nfs4_find_or_create_slot' ret = nfs4_find_or_create_slot(tbl, slotid, 1, GFP_NOWAIT); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4session.c:126:2: note: Loop condition is true. Entering loop body for (;;) { ^ fs/nfs/nfs4session.c:127:7: note: Assuming the condition is true if (*p == NULL) { ^~~~~~~~~~ fs/nfs/nfs4session.c:127:3: note: Taking true branch if (*p == NULL) { ^ fs/nfs/nfs4session.c:128:9: note: Calling 'nfs4_new_slot' *p = nfs4_new_slot(tbl, tbl->max_slots, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4session.c:109:9: note: Calling 'kzalloc' slot = kzalloc(sizeof(*slot), gfp_mask); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/slab.h:715:9: note: Uninitialized value stored to field 'next' return kmalloc(size, flags | __GFP_ZERO); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4session.c:109:9: note: Returning from 'kzalloc' slot = kzalloc(sizeof(*slot), gfp_mask); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4session.c:110:6: note: Assuming 'slot' is non-null if (slot) { ^~~~ fs/nfs/nfs4session.c:110:2: note: Taking true branch if (slot) { ^ fs/nfs/nfs4session.c:128:9: note: Returning from 'nfs4_new_slot' *p = nfs4_new_slot(tbl, tbl->max_slots, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4session.c:130:4: note: Taking false branch if (*p == NULL) ^ fs/nfs/nfs4session.c:135:7: note: Assuming 'slotid' is not equal to field 'slot_nr' if (slot->slot_nr == slotid) ^~~~~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4session.c:135:3: note: Taking false branch if (slot->slot_nr == slotid) ^ -- drivers/media/tuners/mt20xx.c:395:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+12,2); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/tuners/mt20xx.c:395:2: note: Value stored to 'ret' is never read ret=tuner_i2c_xfer_send(&priv->i2c_props,buf+12,2); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. drivers/comedi/drivers/mite.c:686:13: warning: Access to field 'next' results in a dereference of a null pointer (loaded from variable 'desc') [clang-analyzer-core.NullDereference] desc->next = cpu_to_le32(ring->dma_addr); ^ drivers/comedi/drivers/mite.c:724:6: note: Assuming field 'prealloc_bufsz' is not equal to 0 if (async->prealloc_bufsz == 0) ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/comedi/drivers/mite.c:724:2: note: Taking false branch if (async->prealloc_bufsz == 0) ^ drivers/comedi/drivers/mite.c:732:6: note: Assuming 'descs' is non-null if (!descs) { ^~~~~~ drivers/comedi/drivers/mite.c:732:2: note: Taking false branch if (!descs) { ^ drivers/comedi/drivers/mite.c:740:9: note: Calling 'mite_init_ring_descriptors' return mite_init_ring_descriptors(ring, s, n_links << PAGE_SHIFT); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/comedi/drivers/mite.c:654:2: note: 'desc' initialized to a null pointer value struct mite_dma_desc *desc = NULL; ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/comedi/drivers/mite.c:659:2: note: Taking false branch dev_dbg(s->device->class_dev, ^ include/linux/dev_printk.h:162:2: note: expanded from macro 'dev_dbg' if (0) \ ^ drivers/comedi/drivers/mite.c:662:23: note: Assuming 'remainder' is <= 0 if ((n_full_links + (remainder > 0 ? 1 : 0)) > ring->n_links) { ^~~~~~~~~~~~~ drivers/comedi/drivers/mite.c:662:23: note: '?' condition is false drivers/comedi/drivers/mite.c:662:6: note: Assuming the condition is false if ((n_full_links + (remainder > 0 ? 1 : 0)) > ring->n_links) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/comedi/drivers/mite.c:662:2: note: Taking false branch if ((n_full_links + (remainder > 0 ? 1 : 0)) > ring->n_links) { ^ drivers/comedi/drivers/mite.c:669:14: note: Assuming 'i' is >= 'n_full_links' for (i = 0; i < n_full_links; ++i) { ^~~~~~~~~~~~~~~~ drivers/comedi/drivers/mite.c:669:2: note: Loop condition is false. Execution continues on line 678 for (i = 0; i < n_full_links; ++i) { ^ drivers/comedi/drivers/mite.c:678:6: note: 'remainder' is <= 0 if (remainder > 0) { ^~~~~~~~~ drivers/comedi/drivers/mite.c:678:2: note: Taking false branch if (remainder > 0) { ^ drivers/comedi/drivers/mite.c:686:13: note: Access to field 'next' results in a dereference of a null pointer (loaded from variable 'desc') desc->next = cpu_to_le32(ring->dma_addr); ~~~~ ^ drivers/comedi/drivers/mite.c:841:3: warning: Value stored to 'wpdep' is never read [clang-analyzer-deadcode.DeadStores] wpdep = BIT(wpdep); ^ drivers/comedi/drivers/mite.c:841:3: note: Value stored to 'wpdep' is never read 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. drivers/extcon/extcon-ptn5150.c:173:2: warning: Value stored to 'vendor_id' is never read [clang-analyzer-deadcode.DeadStores] vendor_id = FIELD_GET(PTN5150_REG_DEVICE_ID_VENDOR, reg_data); ^ drivers/extcon/extcon-ptn5150.c:173:2: note: Value stored to 'vendor_id' is never read drivers/extcon/extcon-ptn5150.c:174:2: warning: Value stored to 'version_id' is never read [clang-analyzer-deadcode.DeadStores] version_id = FIELD_GET(PTN5150_REG_DEVICE_ID_VERSION, reg_data); ^ drivers/extcon/extcon-ptn5150.c:174:2: note: Value stored to 'version_id' is never read 1 warning generated. drivers/extcon/extcon-sm5502.c:24:8: warning: Excessive padding in 'struct muic_irq' (8 padding bytes, where 0 is optimal). Optimal fields order: name, irq, virq, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding] struct muic_irq { ~~~~~~~^~~~~~~~~~ drivers/extcon/extcon-sm5502.c:24:8: note: Excessive padding in 'struct muic_irq' (8 padding bytes, where 0 is optimal). Optimal fields order: name, irq, virq, consider reordering the fields or adding explicit padding members struct muic_irq { ~~~~~~~^~~~~~~~~~ 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. >> drivers/crypto/qat/qat_common/qat_crypto.c:152:3: warning: Value stored to >> 'instances' is never read [clang-analyzer-deadcode.DeadStores] instances = min(cpus, banks); ^ drivers/crypto/qat/qat_common/qat_crypto.c:152:3: note: Value stored to 'instances' is never read drivers/crypto/qat/qat_common/qat_crypto.c:154:3: warning: Value stored to 'instances' is never read [clang-analyzer-deadcode.DeadStores] instances = 0; ^ ~ drivers/crypto/qat/qat_common/qat_crypto.c:154:3: note: Value stored to 'instances' is never read instances = 0; ^ ~ 1 warning generated. Suppressed 1 warnings (1 with check filters). 1 warning generated. drivers/media/mc/mc-request.c:190:23: warning: Value stored to 'mdev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct media_device *mdev = req->mdev; ^~~~ ~~~~~~~~~ drivers/media/mc/mc-request.c:190:23: note: Value stored to 'mdev' during its initialization is never read struct media_device *mdev = req->mdev; ^~~~ ~~~~~~~~~ 2 warnings generated. drivers/media/v4l2-core/v4l2-dev.c:1053:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret = video_register_media_controller(vdev); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/v4l2-core/v4l2-dev.c:1053:2: note: Value stored to 'ret' is never read ret = video_register_media_controller(vdev); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. drivers/media/v4l2-core/v4l2-ioctl.c:3311:3: warning: Value stored to 'err' is never read [clang-analyzer-deadcode.DeadStores] err = -EFAULT; ^ ~~~~~~~ drivers/media/v4l2-core/v4l2-ioctl.c:3311:3: note: Value stored to 'err' is never read err = -EFAULT; ^ ~~~~~~~ Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. drivers/hwmon/adm1026.c:1574:6: warning: Value stored to 'address' during its initialization is never read [clang-analyzer-deadcode.DeadStores] int address = client->addr; ^~~~~~~ ~~~~~~~~~~~~ drivers/hwmon/adm1026.c:1574:6: note: Value stored to 'address' during its initialization is never read int address = client->addr; ^~~~~~~ ~~~~~~~~~~~~ 4 warnings generated. drivers/mtd/inftlmount.c:550:2: warning: Value stored to 'logical_block' is never read [clang-analyzer-deadcode.DeadStores] logical_block = block = BLOCK_NIL; ^ ~~~~~~~~~~~~~~~~~ drivers/mtd/inftlmount.c:550:2: note: Value stored to 'logical_block' is never read logical_block = block = BLOCK_NIL; ^ ~~~~~~~~~~~~~~~~~ drivers/mtd/inftlmount.c:550:18: warning: Although the value stored to 'block' is used in the enclosing expression, the value is never actually read from 'block' [clang-analyzer-deadcode.DeadStores] logical_block = block = BLOCK_NIL; ^ drivers/mtd/inftlmount.c:550:18: note: Although the value stored to 'block' is used in the enclosing expression, the value is never actually read from 'block' drivers/mtd/inftlmount.c:693:3: warning: Value stored to 'logical_block' is never read [clang-analyzer-deadcode.DeadStores] logical_block = BLOCK_NIL; ^ drivers/mtd/inftlmount.c:693:3: note: Value stored to 'logical_block' is never read Suppressed 1 warnings (1 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 1 warning generated. fs/btrfs/free-space-tree.c:1476:3: warning: Value stored to 'total_found' is never read [clang-analyzer-deadcode.DeadStores] total_found += add_new_free_space(block_group, extent_start, ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/btrfs/free-space-tree.c:1476:3: note: Value stored to 'total_found' is never read total_found += add_new_free_space(block_group, extent_start, ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. fs/btrfs/space-info.c:1565:3: warning: Value stored to 'used' is never read [clang-analyzer-deadcode.DeadStores] used += orig_bytes; ^ ~~~~~~~~~~ fs/btrfs/space-info.c:1565:3: note: Value stored to 'used' is never read used += orig_bytes; ^ ~~~~~~~~~~ 1 warning generated. drivers/crypto/qat/qat_common/adf_gen4_pfvf.c:46:9: warning: Although the value stored to 'sou' is used in the enclosing expression, the value is never actually read from 'sou' [clang-analyzer-deadcode.DeadStores] return sou &= ~mask; ^ ~~~~~ drivers/crypto/qat/qat_common/adf_gen4_pfvf.c:46:9: note: Although the value stored to 'sou' is used in the enclosing expression, the value is never actually read from 'sou' return sou &= ~mask; ^ ~~~~~ 5 warnings generated. drivers/scsi/snic/snic_scsi.c:519:4: warning: Value stored to 'xfer_len' is never read [clang-analyzer-deadcode.DeadStores] xfer_len -= le32_to_cpu(icmnd_cmpl->resid); ^ drivers/scsi/snic/snic_scsi.c:519:4: note: Value stored to 'xfer_len' is never read drivers/scsi/snic/snic_scsi.c:1890:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret = FAILED; ^ ~~~~~~ drivers/scsi/snic/snic_scsi.c:1890:3: note: Value stored to 'ret' is never read ret = FAILED; vim +/instances +66 drivers/crypto/qat/qat_4xxx/adf_drv.c 0cec19c761e5cc Tomasz Kowalik 2021-12-16 54 8c8268166e8342 Giovanni Cabiddu 2020-11-13 55 static int adf_crypto_dev_config(struct adf_accel_dev *accel_dev) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 56 { 8c8268166e8342 Giovanni Cabiddu 2020-11-13 57 char key[ADF_CFG_MAX_KEY_LEN_IN_BYTES]; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 58 int banks = GET_MAX_BANKS(accel_dev); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 59 int cpus = num_online_cpus(); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 60 unsigned long bank, val; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 61 int instances; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 62 int ret; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 63 int i; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 64 8c8268166e8342 Giovanni Cabiddu 2020-11-13 65 if (adf_hw_dev_has_crypto(accel_dev)) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 @66 instances = min(cpus, banks / 2); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 67 else 8c8268166e8342 Giovanni Cabiddu 2020-11-13 68 instances = 0; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 69 8c8268166e8342 Giovanni Cabiddu 2020-11-13 70 ret = adf_cfg_section_add(accel_dev, ADF_KERNEL_SEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 71 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 72 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 73 8c8268166e8342 Giovanni Cabiddu 2020-11-13 74 ret = adf_cfg_section_add(accel_dev, "Accelerator0"); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 75 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 76 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 77 8893d27ffcaf6e Giovanni Cabiddu 2022-03-04 78 /* Temporarily set the number of crypto instances to zero to avoid 8893d27ffcaf6e Giovanni Cabiddu 2022-03-04 79 * registering the crypto algorithms. 8893d27ffcaf6e Giovanni Cabiddu 2022-03-04 80 * This will be removed when the algorithms will support the 8893d27ffcaf6e Giovanni Cabiddu 2022-03-04 81 * CRYPTO_TFM_REQ_MAY_BACKLOG flag 8893d27ffcaf6e Giovanni Cabiddu 2022-03-04 82 */ 8893d27ffcaf6e Giovanni Cabiddu 2022-03-04 83 instances = 0; 8893d27ffcaf6e Giovanni Cabiddu 2022-03-04 84 8c8268166e8342 Giovanni Cabiddu 2020-11-13 85 for (i = 0; i < instances; i++) { 8c8268166e8342 Giovanni Cabiddu 2020-11-13 86 val = i; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 87 bank = i * 2; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 88 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_BANK_NUM, i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 89 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 90 key, &bank, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 91 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 92 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 93 8c8268166e8342 Giovanni Cabiddu 2020-11-13 94 bank += 1; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 95 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_BANK_NUM, i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 96 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 97 key, &bank, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 98 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 99 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 100 8c8268166e8342 Giovanni Cabiddu 2020-11-13 101 snprintf(key, sizeof(key), ADF_CY "%d" ADF_ETRMGR_CORE_AFFINITY, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 102 i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 103 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 104 key, &val, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 105 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 106 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 107 8c8268166e8342 Giovanni Cabiddu 2020-11-13 108 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_SIZE, i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 109 val = 128; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 110 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 111 key, &val, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 112 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 113 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 114 8c8268166e8342 Giovanni Cabiddu 2020-11-13 115 val = 512; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 116 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_SIZE, i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 117 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 118 key, &val, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 119 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 120 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 121 8c8268166e8342 Giovanni Cabiddu 2020-11-13 122 val = 0; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 123 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_TX, i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 124 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 125 key, &val, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 126 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 127 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 128 8c8268166e8342 Giovanni Cabiddu 2020-11-13 129 val = 0; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 130 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_TX, i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 131 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 132 key, &val, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 133 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 134 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 135 8c8268166e8342 Giovanni Cabiddu 2020-11-13 136 val = 1; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 137 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_RX, i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 138 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 139 key, &val, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 140 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 141 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 142 8c8268166e8342 Giovanni Cabiddu 2020-11-13 143 val = 1; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 144 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_RX, i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 145 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 146 key, &val, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 147 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 148 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 149 8c8268166e8342 Giovanni Cabiddu 2020-11-13 150 val = ADF_COALESCING_DEF_TIME; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 151 snprintf(key, sizeof(key), ADF_ETRMGR_COALESCE_TIMER_FORMAT, i); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 152 ret = adf_cfg_add_key_value_param(accel_dev, "Accelerator0", 8c8268166e8342 Giovanni Cabiddu 2020-11-13 153 key, &val, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 154 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 155 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 156 } 8c8268166e8342 Giovanni Cabiddu 2020-11-13 157 8c8268166e8342 Giovanni Cabiddu 2020-11-13 158 val = i; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 159 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, ADF_NUM_CY, 8c8268166e8342 Giovanni Cabiddu 2020-11-13 160 &val, ADF_DEC); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 161 if (ret) 8c8268166e8342 Giovanni Cabiddu 2020-11-13 162 goto err; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 163 8c8268166e8342 Giovanni Cabiddu 2020-11-13 164 set_bit(ADF_STATUS_CONFIGURED, &accel_dev->status); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 165 return 0; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 166 err: 8c8268166e8342 Giovanni Cabiddu 2020-11-13 167 dev_err(&GET_DEV(accel_dev), "Failed to start QAT accel dev\n"); 8c8268166e8342 Giovanni Cabiddu 2020-11-13 168 return ret; 8c8268166e8342 Giovanni Cabiddu 2020-11-13 169 } 8c8268166e8342 Giovanni Cabiddu 2020-11-13 170 :::::: The code at line 66 was first introduced by commit :::::: 8c8268166e83425243789c5781c92e7fa33b703b crypto: qat - add qat_4xxx driver :::::: TO: Giovanni Cabiddu <[email protected]> :::::: CC: Herbert Xu <[email protected]> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
