# git rev-parse -q --verify 38e7571c07be01f9f19b355a9306a4e3d5cb0f5b^{commit}
38e7571c07be01f9f19b355a9306a4e3d5cb0f5b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 38e7571c07be01f9f19b355a9306a4e3d5cb0f5b
# git clean -qxdf
# < git log -1
# commit 38e7571c07be01f9f19b355a9306a4e3d5cb0f5b
# Merge: 80201fe175cb 21b4aa5d20fd
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Mar 8 14:48:40 2019 -0800
# 
#     Merge tag 'io_uring-2019-03-06' of git://git.kernel.dk/linux-block
#     
#     Pull io_uring IO interface from Jens Axboe:
#      "Second attempt at adding the io_uring interface.
#     
#       Since the first one, we've added basic unit testing of the three
#       system calls, that resides in liburing like the other unit tests that
#       we have so far. It'll take a while to get full coverage of it, but
#       we're working towards it. I've also added two basic test programs to
#       tools/io_uring. One uses the raw interface and has support for all the
#       various features that io_uring supports outside of standard IO, like
#       fixed files, fixed IO buffers, and polled IO. The other uses the
#       liburing API, and is a simplified version of cp(1).
#     
#       This adds support for a new IO interface, io_uring.
#     
#       io_uring allows an application to communicate with the kernel through
#       two rings, the submission queue (SQ) and completion queue (CQ) ring.
#       This allows for very efficient handling of IOs, see the v5 posting for
#       some basic numbers:
#     
#         https://lore.kernel.org/linux-block/20190116175003.17880-1-axboe@kernel.dk/
#     
#       Outside of just efficiency, the interface is also flexible and
#       extendable, and allows for future use cases like the upcoming NVMe
#       key-value store API, networked IO, and so on. It also supports async
#       buffered IO, something that we've always failed to support in the
#       kernel.
#     
#       Outside of basic IO features, it supports async polled IO as well.
#       This particular feature has already been tested at Facebook months ago
#       for flash storage boxes, with 25-33% improvements. It makes polled IO
#       actually useful for real world use cases, where even basic flash sees
#       a nice win in terms of efficiency, latency, and performance. These
#       boxes were IOPS bound before, now they are not.
#     
#       This series adds three new system calls. One for setting up an
#       io_uring instance (io_uring_setup(2)), one for submitting/completing
#       IO (io_uring_enter(2)), and one for aux functions like registrating
#       file sets, buffers, etc (io_uring_register(2)). Through the help of
#       Arnd, I've coordinated the syscall numbers so merge on that front
#       should be painless.
#     
#       Jon did a writeup of the interface a while back, which (except for
#       minor details that have been tweaked) is still accurate. Find that
#       here:
#     
#         https://lwn.net/Articles/776703/
#     
#       Huge thanks to Al Viro for helping getting the reference cycle code
#       correct, and to Jann Horn for his extensive reviews focused on both
#       security and bugs in general.
#     
#       There's a userspace library that provides basic functionality for
#       applications that don't need or want to care about how to fiddle with
#       the rings directly. It has helpers to allow applications to easily set
#       up an io_uring instance, and submit/complete IO through it without
#       knowing about the intricacies of the rings. It also includes man pages
#       (thanks to Jeff Moyer), and will continue to grow support helper
#       functions and features as time progresses. Find it here:
#     
#         git://git.kernel.dk/liburing
#     
#       Fio has full support for the raw interface, both in the form of an IO
#       engine (io_uring), but also with a small test application (t/io_uring)
#       that can exercise and benchmark the interface"
#     
#     * tag 'io_uring-2019-03-06' of git://git.kernel.dk/linux-block:
#       io_uring: add a few test tools
#       io_uring: allow workqueue item to handle multiple buffered requests
#       io_uring: add support for IORING_OP_POLL
#       io_uring: add io_kiocb ref count
#       io_uring: add submission polling
#       io_uring: add file set registration
#       net: split out functions related to registering inflight socket files
#       io_uring: add support for pre-mapped user IO buffers
#       block: implement bio helper to add iter bvec pages to bio
#       io_uring: batch io_kiocb allocation
#       io_uring: use fget/fput_many() for file references
#       fs: add fget_many() and fput_many()
#       io_uring: support for IO polling
#       io_uring: add fsync support
#       Add io_uring IO interface
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-ld --version
# < git log --format=%s --max-count=1 38e7571c07be01f9f19b355a9306a4e3d5cb0f5b
# < make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# yes \n | make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  
<stdin>:1478:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
/kisskb/src/kernel/events/ring_buffer.c: In function 'perf_output_begin_forward':
/kisskb/src/kernel/events/ring_buffer.c:237:1: warning: 'perf_output_begin_forward' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/ring_buffer.c: In function 'perf_output_begin_backward':
/kisskb/src/kernel/events/ring_buffer.c:243:1: warning: 'perf_output_begin_backward' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/ring_buffer.c: In function 'perf_output_begin':
/kisskb/src/kernel/events/ring_buffer.c:251:1: warning: 'perf_output_begin' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1288:1: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/cgroup/cgroup-v1.c:1120:22: note: 'root' was declared here
/kisskb/src/kernel/events/core.c: In function 'perf_log_throttle':
/kisskb/src/kernel/events/core.c:7688:1: warning: 'perf_log_throttle' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_swevent_hrtimer':
/kisskb/src/kernel/events/core.c:9394:1: warning: 'perf_swevent_hrtimer' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_log_itrace_start':
/kisskb/src/kernel/events/core.c:7930:1: warning: 'perf_log_itrace_start' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_event_read_event':
/kisskb/src/kernel/events/core.c:6598:1: warning: 'perf_event_read_event' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_event_task_output':
/kisskb/src/kernel/events/core.c:6878:1: warning: 'perf_event_task_output' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_event_bpf_output':
/kisskb/src/kernel/events/core.c:7822:1: warning: 'perf_event_bpf_output' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_event_ksymbol_output':
/kisskb/src/kernel/events/core.c:7733:1: warning: 'perf_event_ksymbol_output' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_event_mmap_output':
/kisskb/src/kernel/events/core.c:7234:1: warning: 'perf_event_mmap_output' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_event_namespaces_output':
/kisskb/src/kernel/events/core.c:7071:1: warning: 'perf_event_namespaces_output' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_event_comm_output':
/kisskb/src/kernel/events/core.c:6972:1: warning: 'perf_event_comm_output' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_event_switch_output':
/kisskb/src/kernel/events/core.c:7617:1: warning: 'perf_event_switch_output' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_event_aux_event':
/kisskb/src/kernel/events/core.c:7525:1: warning: 'perf_event_aux_event' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_log_lost_samples':
/kisskb/src/kernel/events/core.c:7558:1: warning: 'perf_log_lost_samples' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function 'perf_tp_event':
/kisskb/src/kernel/events/core.c:8569:1: warning: 'perf_tp_event' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/events/core.c: In function '___perf_sw_event':
/kisskb/src/kernel/events/core.c:8255:1: warning: '___perf_sw_event' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/trace/trace_dynevent.c: In function 'create_dyn_event':
/kisskb/src/kernel/trace/trace_dynevent.c:89:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/s390/kernel/perf_cpum_sf.c: In function 'perf_push_sample':
/kisskb/src/arch/s390/kernel/perf_cpum_sf.c:1075:1: warning: 'perf_push_sample' uses dynamic stack allocation [enabled by default]
/kisskb/src/arch/s390/kernel/perf_cpum_cf_diag.c: In function 'cf_diag_push_sample':
/kisskb/src/arch/s390/kernel/perf_cpum_cf_diag.c:507:1: warning: 'cf_diag_push_sample' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/smp.c: In function 'smp_call_function_single':
/kisskb/src/kernel/smp.c:307:1: warning: 'smp_call_function_single' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/rseq.c: In function 'rseq_ip_fixup':
/kisskb/src/kernel/rseq.c:249:1: warning: 'rseq_ip_fixup' uses dynamic stack allocation [enabled by default]
/kisskb/src/kernel/rseq.c: In function 'rseq_syscall':
/kisskb/src/kernel/rseq.c:301:1: warning: 'rseq_syscall' uses dynamic stack allocation [enabled by default]
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1435:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/atm/ambassador.c: In function 'do_loader_command':
/kisskb/src/drivers/atm/ambassador.c:1762:3: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void *' but argument is of type 'volatile struct loader_block *'
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2594:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write':
/kisskb/src/drivers/base/regmap/regmap.c:1855:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/mm/slub.c: In function 'deactivate_slab.isra.50':
/kisskb/src/mm/slub.c:2185:1: warning: 'deactivate_slab.isra.50' uses dynamic stack allocation [enabled by default]
/kisskb/src/mm/slub.c: In function 'unfreeze_partials.isra.51':
/kisskb/src/mm/slub.c:2253:1: warning: 'unfreeze_partials.isra.51' uses dynamic stack allocation [enabled by default]
/kisskb/src/mm/slub.c: In function 'get_partial_node.isra.52':
/kisskb/src/mm/slub.c:1892:1: warning: 'get_partial_node.isra.52' uses dynamic stack allocation [enabled by default]
/kisskb/src/mm/slub.c: In function '___slab_alloc':
/kisskb/src/mm/slub.c:2637:1: warning: '___slab_alloc' uses dynamic stack allocation [enabled by default]
/kisskb/src/mm/slub.c: In function '__slab_free':
/kisskb/src/mm/slub.c:2938:1: warning: '__slab_free' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/ata/ahci_qoriq.c: In function 'ahci_qoriq_hardreset':
/kisskb/src/include/asm-generic/io.h:232:15: warning: 'px_is' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/ata/ahci_qoriq.c:86:14: note: 'px_is' was declared here
/kisskb/src/include/asm-generic/io.h:232:15: warning: 'px_cmd' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/ata/ahci_qoriq.c:86:6: note: 'px_cmd' was declared here
/kisskb/src/fs/afs/dynroot.c: In function 'afs_lookup_atcell':
/kisskb/src/fs/afs/dynroot.c:126:6: warning: 'len' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'query_info':
/kisskb/src/drivers/s390/net/ism_drv.c:84:1: warning: 'query_info' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'register_sba':
/kisskb/src/drivers/s390/net/ism_drv.c:111:1: warning: 'register_sba' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'register_ieq':
/kisskb/src/drivers/s390/net/ism_drv.c:140:1: warning: 'register_ieq' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_query_rgid':
/kisskb/src/drivers/s390/net/ism_drv.c:215:1: warning: 'ism_query_rgid' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_unregister_dmb':
/kisskb/src/drivers/s390/net/ism_drv.c:302:1: warning: 'ism_unregister_dmb' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_add_vlan_id':
/kisskb/src/drivers/s390/net/ism_drv.c:316:1: warning: 'ism_add_vlan_id' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_del_vlan_id':
/kisskb/src/drivers/s390/net/ism_drv.c:330:1: warning: 'ism_del_vlan_id' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_signal_ieq':
/kisskb/src/drivers/s390/net/ism_drv.c:358:1: warning: 'ism_signal_ieq' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_dev_init':
/kisskb/src/drivers/s390/net/ism_drv.c:492:1: warning: 'ism_dev_init' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_register_dmb':
/kisskb/src/drivers/s390/net/ism_drv.c:281:1: warning: 'ism_register_dmb' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/s390/scsi/zfcp_erp.c: In function 'zfcp_erp_setup_act':
/kisskb/src/drivers/s390/scsi/zfcp_erp.c:262:2: warning: 'erp_action' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/hda/hdac_regmap.c: In function 'hda_reg_write':
/kisskb/src/sound/hda/hdac_regmap.c:282:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/bridge/br_device.c: In function 'br_get_stats64':
/kisskb/src/net/bridge/br_device.c:232:1: warning: 'br_get_stats64' uses dynamic stack allocation [enabled by default]
/kisskb/src/net/bridge/netfilter/ebtables.c: In function 'compat_copy_everything_to_user':
/kisskb/src/net/bridge/netfilter/ebtables.c:1855:1: warning: 'compat_copy_everything_to_user' uses dynamic stack allocation [enabled by default]
/kisskb/src/fs/btrfs/ref-verify.c: In function 'process_extent_item.isra.2':
/kisskb/src/fs/btrfs/ref-verify.c:503:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/btrfs/ref-verify.c: In function 'process_leaf.isra.3':
/kisskb/src/fs/btrfs/ref-verify.c:555:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/bridge/br_netlink.c: In function 'br_process_vlan_info':
/kisskb/src/net/bridge/br_netlink.c:591:10: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/input/joystick/analog.c:172:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
/kisskb/src/sound/soc/codecs/arizona.c: In function 'arizona_hw_params':
/kisskb/src/sound/soc/codecs/arizona.c:1893:3: warning: 'aif_rx_state' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/arizona.c:1890:3: warning: 'aif_tx_state' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/crypto/chelsio/chtls/chtls_cm.c: In function 'wait_for_states.constprop.23':
/kisskb/src/drivers/crypto/chelsio/chtls/chtls_cm.c:406:1: warning: 'wait_for_states.constprop.23' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c: In function 'amdgpu_set_pp_od_clk_voltage':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:593:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c: In function '__arm_v7s_map.constprop.7':
/kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c:438:7: warning: 'cptep' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/da7219-aad.c: In function 'da7219_aad_hptest_work':
/kisskb/src/sound/soc/codecs/da7219-aad.c:321:17: warning: 'pll_ctrl' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ncsi/ncsi-manage.c: In function 'set_one_vid':
/kisskb/src/net/ncsi/ncsi-manage.c:676:19: warning: 'vid' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/f2fs/file.c: In function 'f2fs_precache_extents':
/kisskb/src/fs/f2fs/file.c:2937:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr_rx':
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/devlink.c: In function 'devlink_fmsg_prepare_skb':
/kisskb/src/net/core/devlink.c:4299:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/rt5665.c: In function 'rt5665_i2s_pin_event':
/kisskb/src/sound/soc/codecs/rt5665.c:2666:33: warning: 'val2' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/rt5665.c:2663:33: warning: 'val1' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'dm_determine_update_type_for_commit':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5831:10: warning: missing braces around initializer [-Wmissing-braces]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5831:10: warning: (near initialization for 'stream_update.src') [-Wmissing-braces]
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfsd/nfs4xdr.c:2081:42: warning: 'end' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfs/super.c: In function 'nfs_show_stats':
/kisskb/src/fs/nfs/super.c:890:1: warning: 'nfs_show_stats' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/soc/qcom/rpmh.c: In function 'rpmh_write_batch':
/kisskb/src/drivers/soc/qcom/rpmh.c:355:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/target/iscsi/cxgbit/cxgbit_target.c: In function 'cxgbit_tx_datain_iso.isra.32':
/kisskb/src/drivers/target/iscsi/cxgbit/cxgbit_target.c:501:1: warning: 'cxgbit_tx_datain_iso.isra.32' uses dynamic stack allocation [enabled by default]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:339:21: note: 'pdeo' was declared here
/kisskb/src/drivers/target/iscsi/iscsi_target.c: In function 'iscsit_send_datain':
/kisskb/src/drivers/target/iscsi/iscsi_target.c:2846:1: warning: 'iscsit_send_datain' uses dynamic stack allocation [enabled by default]
/kisskb/src/net/sunrpc/stats.c: In function 'rpc_clnt_show_stats':
/kisskb/src/net/sunrpc/stats.c:268:1: warning: 'rpc_clnt_show_stats' uses dynamic stack allocation [enabled by default]
/kisskb/src/fs/ocfs2/alloc.c: In function 'ocfs2_trim_mainbm':
/kisskb/src/fs/ocfs2/alloc.c:7604:17: warning: 'first_bit' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/wan/lmc/lmc_main.c: In function 'lmc_softreset':
/kisskb/src/drivers/net/wan/lmc/lmc_main.c:1851:9: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void *' but argument is of type 'volatile struct tulip_desc_t *'
/kisskb/src/drivers/net/wan/lmc/lmc_main.c:1860:9: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void *' but argument is of type 'volatile struct tulip_desc_t *'
/kisskb/src/drivers/net/wan/lmc/lmc_main.c:1862:5: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void *' but argument is of type 'volatile struct tulip_desc_t *'
/kisskb/src/drivers/net/wan/lmc/lmc_main.c:1873:9: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void *' but argument is of type 'volatile struct tulip_desc_t *'
/kisskb/src/drivers/net/wan/lmc/lmc_main.c:1875:5: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void *' but argument is of type 'volatile struct tulip_desc_t *'
/kisskb/src/drivers/net/wan/lmc/lmc_main.c:1876:5: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void *' but argument is of type 'volatile struct tulip_desc_t *'
/kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c: In function 'bmi160_config_pin.constprop.9':
/kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:618:3: warning: 'pin_name' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:606:29: warning: 'int_map_mask' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:599:29: warning: 'int_latch_mask' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:577:47: warning: 'int_out_ctrl_shift' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/veth.c: In function 'veth_get_stats64':
/kisskb/src/drivers/net/veth.c:365:1: warning: 'veth_get_stats64' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1845:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1755:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c: In function 'mvpp2_setup_bm_pool':
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:551:41: warning: overflow in implicit constant conversion [-Woverflow]
/kisskb/src/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c: In function 'cudbg_collect_qdesc':
/kisskb/src/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c:2962:6: warning: 'rc' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c: In function 'rvu_mbox_handler_npc_mcam_shift_entry':
/kisskb/src/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c:1815:15: warning: 'rc' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c: In function 'hclgevf_bind_ring_to_vector':
/kisskb/src/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c:1000:16: warning: 'type' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/ethernet/neterion/vxge/vxge-config.c: In function 'vxge_hw_device_hw_info_get':
/kisskb/src/drivers/net/ethernet/neterion/vxge/vxge-config.c:1089:1: warning: 'vxge_hw_device_hw_info_get' uses dynamic stack allocation [enabled by default]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c: In function 'gk104_top_oneinit':
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:104:1: warning: 'inst' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:104:1: warning: 'type' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c: In function 'update_root_ft_create':
/kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c:838:5: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/media/usb/dvb-usb/pctv452e.c: In function 'pctv452e_frontend_attach':
/kisskb/src/drivers/media/usb/dvb-usb/pctv452e.c:922:2: warning: value computed is not used [-Wunused-value]
/kisskb/src/arch/s390/boot/mem_detect.c: In function 'detect_memory':
/kisskb/src/arch/s390/boot/mem_detect.c:182:1: warning: 'detect_memory' uses dynamic stack allocation [enabled by default]
Completed OK
# rm -rf /kisskb/build/linus_s390-allmodconfig_s390x
# Build took: 0:10:04.776842