# git rev-parse -q --verify 625d3449788f85569096780592549d0340e9c0c7^{commit}
625d3449788f85569096780592549d0340e9c0c7
already have revision, skipping fetch
# git checkout -q -f -B kisskb 625d3449788f85569096780592549d0340e9c0c7
# git clean -qxdf
# < git log -1
# commit 625d3449788f85569096780592549d0340e9c0c7
# Author: Jason A. Donenfeld <Jason@zx2c4.com>
# Date:   Sun Jun 21 21:02:22 2020 -0600
# 
#     Revert "kernel/printk: add kmsg SEEK_CUR handling"
#     
#     This reverts commit 8ece3b3eb576a78d2e67ad4c3a80a39fa6708809.
#     
#     This commit broke userspace. Bash uses ESPIPE to determine whether or
#     not the file should be read using "unbuffered I/O", which means reading
#     1 byte at a time instead of 128 bytes at a time. I used to use bash to
#     read through kmsg in a really quite nasty way:
#     
#         while read -t 0.1 -r line 2>/dev/null || [[ $? -ne 142 ]]; do
#            echo "SARU $line"
#         done < /dev/kmsg
#     
#     This will show all lines that can fit into the 128 byte buffer, and skip
#     lines that don't. That's pretty awful, but at least it worked.
#     
#     With this change, bash now tries to do 1-byte reads, which means it
#     skips all the lines, which is worse than before.
#     
#     Now, I don't really care very much about this, and I'm already look for
#     a workaround. But I did just spend an hour trying to figure out why my
#     scripts were broken. Either way, it makes no difference to me personally
#     whether this is reverted, but it might be something to consider. If you
#     declare that "trying to read /dev/kmsg with bash is terminally stupid
#     anyway," I might be inclined to agree with you. But do note that bash
#     uses lseek(fd, 0, SEEK_CUR)==>ESPIPE to determine whether or not it's
#     reading from a pipe.
#     
#     Cc: Bruno Meneguele <bmeneg@redhat.com>
#     Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
#     Cc: Steven Rostedt <rostedt@goodmis.org>
#     Cc: David Laight <David.Laight@ACULAB.COM>
#     Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
#     Cc: Petr Mladek <pmladek@suse.com>
#     Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 625d3449788f85569096780592549d0340e9c0c7
# < make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-allyesconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  allyesconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# < make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-allyesconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-allyesconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-allyesconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  
/kisskb/src/arch/s390/kernel/perf_cpum_sf.c: In function 'perf_push_sample':
/kisskb/src/arch/s390/kernel/perf_cpum_sf.c:1136:1: warning: 'perf_push_sample' uses dynamic stack allocation
 }
 ^
/kisskb/src/mm/slub.c: In function 'unfreeze_partials.isra.43':
/kisskb/src/mm/slub.c:2298:1: warning: 'unfreeze_partials.isra.43' uses dynamic stack allocation
 }
 ^
/kisskb/src/mm/slub.c: In function 'get_partial_node.isra.44':
/kisskb/src/mm/slub.c:1929:1: warning: 'get_partial_node.isra.44' uses dynamic stack allocation
 }
 ^
/kisskb/src/mm/slub.c: In function '__slab_free':
/kisskb/src/mm/slub.c:3005:1: warning: '__slab_free' uses dynamic stack allocation
 }
 ^
/kisskb/src/mm/slub.c: In function 'deactivate_slab.isra.45':
/kisskb/src/mm/slub.c:2230:1: warning: 'deactivate_slab.isra.45' uses dynamic stack allocation
 }
 ^
/kisskb/src/mm/slub.c: In function '___slab_alloc':
/kisskb/src/mm/slub.c:2692:1: warning: '___slab_alloc' uses dynamic stack allocation
 }
 ^
/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:519:1: warning: 'cf_diag_push_sample' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/dma/debug.c: In function 'debug_dma_unmap_page':
/kisskb/src/kernel/dma/debug.c:1341:1: warning: 'debug_dma_unmap_page' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/dma/debug.c: In function 'debug_dma_unmap_resource':
/kisskb/src/kernel/dma/debug.c:1535:1: warning: 'debug_dma_unmap_resource' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/dma/debug.c: In function 'debug_dma_unmap_sg':
/kisskb/src/kernel/dma/debug.c:1431:1: warning: 'debug_dma_unmap_sg' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/dma/debug.c: In function 'debug_dma_sync_single_for_cpu':
/kisskb/src/kernel/dma/debug.c:1554:1: warning: 'debug_dma_sync_single_for_cpu' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/dma/debug.c: In function 'debug_dma_sync_single_for_device':
/kisskb/src/kernel/dma/debug.c:1574:1: warning: 'debug_dma_sync_single_for_device' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/dma/debug.c: In function 'debug_dma_sync_sg_for_cpu':
/kisskb/src/kernel/dma/debug.c:1607:1: warning: 'debug_dma_sync_sg_for_cpu' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/dma/debug.c: In function 'debug_dma_sync_sg_for_device':
/kisskb/src/kernel/dma/debug.c:1639:1: warning: 'debug_dma_sync_sg_for_device' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/dma/debug.c: In function 'debug_dma_free_coherent':
/kisskb/src/kernel/dma/debug.c:1493:1: warning: 'debug_dma_free_coherent' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/bpf/syscall.c: In function 'bpf_prog_show_fdinfo':
/kisskb/src/kernel/bpf/syscall.c:1810:1: warning: 'bpf_prog_show_fdinfo' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/bpf/syscall.c: In function 'bpf_prog_get_info_by_fd.isra.18':
/kisskb/src/kernel/bpf/syscall.c:3498:1: warning: 'bpf_prog_get_info_by_fd.isra.18' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_log_throttle':
/kisskb/src/kernel/events/core.c:8429:1: warning: 'perf_log_throttle' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_bpf_output':
/kisskb/src/kernel/events/core.c:8563:1: warning: 'perf_event_bpf_output' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_log_itrace_start':
/kisskb/src/kernel/events/core.c:8670:1: warning: 'perf_log_itrace_start' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_switch_output':
/kisskb/src/kernel/events/core.c:8358:1: warning: 'perf_event_switch_output' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_task_output':
/kisskb/src/kernel/events/core.c:7518:1: warning: 'perf_event_task_output' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_namespaces_output':
/kisskb/src/kernel/events/core.c:7711:1: warning: 'perf_event_namespaces_output' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_ksymbol_output':
/kisskb/src/kernel/events/core.c:8474:1: warning: 'perf_event_ksymbol_output' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_cgroup_output':
/kisskb/src/kernel/events/core.c:7834:1: warning: 'perf_event_cgroup_output' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_comm_output':
/kisskb/src/kernel/events/core.c:7612:1: warning: 'perf_event_comm_output' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_swevent_hrtimer':
/kisskb/src/kernel/events/core.c:10138:1: warning: 'perf_swevent_hrtimer' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_mmap_output':
/kisskb/src/kernel/events/core.c:7975:1: warning: 'perf_event_mmap_output' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_read_event':
/kisskb/src/kernel/events/core.c:7231:1: warning: 'perf_event_read_event' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_event_aux_event':
/kisskb/src/kernel/events/core.c:8266:1: warning: 'perf_event_aux_event' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_log_lost_samples':
/kisskb/src/kernel/events/core.c:8299:1: warning: 'perf_log_lost_samples' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function 'perf_tp_event':
/kisskb/src/kernel/events/core.c:9309:1: warning: 'perf_tp_event' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/core.c: In function '___perf_sw_event':
/kisskb/src/kernel/events/core.c:8995:1: warning: '___perf_sw_event' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/ring_buffer.c: In function 'perf_output_begin_forward':
/kisskb/src/kernel/events/ring_buffer.c:269:1: warning: 'perf_output_begin_forward' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/ring_buffer.c: In function 'perf_output_begin_backward':
/kisskb/src/kernel/events/ring_buffer.c:275:1: warning: 'perf_output_begin_backward' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/events/ring_buffer.c: In function 'perf_output_begin':
/kisskb/src/kernel/events/ring_buffer.c:283:1: warning: 'perf_output_begin' uses dynamic stack allocation
 }
 ^
/kisskb/src/lib/crypto/chacha20poly1305.c: In function 'chacha20poly1305_crypt_sg_inplace':
/kisskb/src/lib/crypto/chacha20poly1305.c:335:1: warning: 'chacha20poly1305_crypt_sg_inplace' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/smp.c: In function 'smp_call_function_single':
/kisskb/src/kernel/smp.c:387:1: warning: 'smp_call_function_single' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_signal_ieq':
/kisskb/src/drivers/s390/net/ism_drv.c:357:1: warning: 'ism_signal_ieq' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_del_vlan_id':
/kisskb/src/drivers/s390/net/ism_drv.c:329:1: warning: 'ism_del_vlan_id' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_add_vlan_id':
/kisskb/src/drivers/s390/net/ism_drv.c:315:1: warning: 'ism_add_vlan_id' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_query_rgid':
/kisskb/src/drivers/s390/net/ism_drv.c:214:1: warning: 'ism_query_rgid' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_unregister_dmb':
/kisskb/src/drivers/s390/net/ism_drv.c:301:1: warning: 'ism_unregister_dmb' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_register_dmb':
/kisskb/src/drivers/s390/net/ism_drv.c:280:1: warning: 'ism_register_dmb' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'query_info':
/kisskb/src/drivers/s390/net/ism_drv.c:83:1: warning: 'query_info' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_probe':
/kisskb/src/drivers/s390/net/ism_drv.c:546:1: warning: 'ism_probe' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/rseq.c: In function '__rseq_handle_notify_resume':
/kisskb/src/kernel/rseq.c:281:1: warning: '__rseq_handle_notify_resume' uses dynamic stack allocation
 }
 ^
/kisskb/src/kernel/rseq.c: In function 'rseq_syscall':
/kisskb/src/kernel/rseq.c:300:1: warning: 'rseq_syscall' uses dynamic stack allocation
 }
 ^
/kisskb/src/fs/nfs/super.c: In function 'nfs_show_stats':
/kisskb/src/fs/nfs/super.c:687:1: warning: 'nfs_show_stats' uses dynamic stack allocation
 }
 ^
/kisskb/src/net/bridge/netfilter/ebtables.c: In function 'compat_copy_everything_to_user':
/kisskb/src/net/bridge/netfilter/ebtables.c:1850:1: warning: 'compat_copy_everything_to_user' uses dynamic stack allocation
 }
 ^
/kisskb/src/lib/test_stackinit.c: In function 'leaf_big_hole_static_all':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'leaf_big_hole_static_all' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:168:2: note: in definition of macro 'DEFINE_TEST'
  var_type var INIT_ ## which ## _ ## init_level;  \
  ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:268:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(static_all);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'test_big_hole_static_all':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'test_big_hole_static_all' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:101:2: note: in definition of macro 'DEFINE_TEST_DRIVER'
  var_type zero INIT_CLONE_ ## which;   \
  ^
/kisskb/src/lib/test_stackinit.c:254:3: note: in expansion of macro 'DEFINE_TEST'
   DEFINE_TEST(name ## _ ## init,   \
   ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:268:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(static_all);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'leaf_big_hole_dynamic_all':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'leaf_big_hole_dynamic_all' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:168:2: note: in definition of macro 'DEFINE_TEST'
  var_type var INIT_ ## which ## _ ## init_level;  \
  ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:271:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(dynamic_all);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'test_big_hole_dynamic_all':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'test_big_hole_dynamic_all' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:101:2: note: in definition of macro 'DEFINE_TEST_DRIVER'
  var_type zero INIT_CLONE_ ## which;   \
  ^
/kisskb/src/lib/test_stackinit.c:254:3: note: in expansion of macro 'DEFINE_TEST'
   DEFINE_TEST(name ## _ ## init,   \
   ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:271:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(dynamic_all);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'leaf_big_hole_zero.isra.9':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'leaf_big_hole_zero.isra.9' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:168:2: note: in definition of macro 'DEFINE_TEST'
  var_type var INIT_ ## which ## _ ## init_level;  \
  ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:265:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(zero);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'test_big_hole_zero':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'test_big_hole_zero' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:101:2: note: in definition of macro 'DEFINE_TEST_DRIVER'
  var_type zero INIT_CLONE_ ## which;   \
  ^
/kisskb/src/lib/test_stackinit.c:254:3: note: in expansion of macro 'DEFINE_TEST'
   DEFINE_TEST(name ## _ ## init,   \
   ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:265:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(zero);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'leaf_big_hole_static_partial.isra.17':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'leaf_big_hole_static_partial.isra.17' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:168:2: note: in definition of macro 'DEFINE_TEST'
  var_type var INIT_ ## which ## _ ## init_level;  \
  ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:267:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(static_partial);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'test_big_hole_static_partial':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'test_big_hole_static_partial' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:101:2: note: in definition of macro 'DEFINE_TEST_DRIVER'
  var_type zero INIT_CLONE_ ## which;   \
  ^
/kisskb/src/lib/test_stackinit.c:254:3: note: in expansion of macro 'DEFINE_TEST'
   DEFINE_TEST(name ## _ ## init,   \
   ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:267:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(static_partial);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'leaf_big_hole_dynamic_partial.isra.29':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'leaf_big_hole_dynamic_partial.isra.29' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:168:2: note: in definition of macro 'DEFINE_TEST'
  var_type var INIT_ ## which ## _ ## init_level;  \
  ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:270:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(dynamic_partial);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'test_big_hole_dynamic_partial':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'test_big_hole_dynamic_partial' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:101:2: note: in definition of macro 'DEFINE_TEST_DRIVER'
  var_type zero INIT_CLONE_ ## which;   \
  ^
/kisskb/src/lib/test_stackinit.c:254:3: note: in expansion of macro 'DEFINE_TEST'
   DEFINE_TEST(name ## _ ## init,   \
   ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:270:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(dynamic_partial);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'leaf_big_hole_runtime_partial.isra.41':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'leaf_big_hole_runtime_partial.isra.41' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:168:2: note: in definition of macro 'DEFINE_TEST'
  var_type var INIT_ ## which ## _ ## init_level;  \
  ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:273:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(runtime_partial);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'test_big_hole_runtime_partial':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'test_big_hole_runtime_partial' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:101:2: note: in definition of macro 'DEFINE_TEST_DRIVER'
  var_type zero INIT_CLONE_ ## which;   \
  ^
/kisskb/src/lib/test_stackinit.c:254:3: note: in expansion of macro 'DEFINE_TEST'
   DEFINE_TEST(name ## _ ## init,   \
   ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:273:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(runtime_partial);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'leaf_big_hole_runtime_all.isra.49':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'leaf_big_hole_runtime_all.isra.49' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:168:2: note: in definition of macro 'DEFINE_TEST'
  var_type var INIT_ ## which ## _ ## init_level;  \
  ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:274:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(runtime_all);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'test_big_hole_runtime_all':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'test_big_hole_runtime_all' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:101:2: note: in definition of macro 'DEFINE_TEST_DRIVER'
  var_type zero INIT_CLONE_ ## which;   \
  ^
/kisskb/src/lib/test_stackinit.c:254:3: note: in expansion of macro 'DEFINE_TEST'
   DEFINE_TEST(name ## _ ## init,   \
   ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:274:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(runtime_all);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'leaf_big_hole_none.isra.63':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'leaf_big_hole_none.isra.63' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:168:2: note: in definition of macro 'DEFINE_TEST'
  var_type var INIT_ ## which ## _ ## init_level;  \
  ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:277:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(none);
 ^
/kisskb/src/lib/test_stackinit.c: In function 'test_big_hole_none':
/kisskb/src/lib/test_stackinit.c:255:15: warning: 'test_big_hole_none' uses dynamic stack allocation
        struct test_ ## name, STRUCT, init)
               ^
/kisskb/src/lib/test_stackinit.c:101:2: note: in definition of macro 'DEFINE_TEST_DRIVER'
  var_type zero INIT_CLONE_ ## which;   \
  ^
/kisskb/src/lib/test_stackinit.c:254:3: note: in expansion of macro 'DEFINE_TEST'
   DEFINE_TEST(name ## _ ## init,   \
   ^
/kisskb/src/lib/test_stackinit.c:259:3: note: in expansion of macro 'DEFINE_STRUCT_TEST'
   DEFINE_STRUCT_TEST(big_hole, init);  \
   ^
/kisskb/src/lib/test_stackinit.c:277:1: note: in expansion of macro 'DEFINE_STRUCT_TESTS'
 DEFINE_STRUCT_TESTS(none);
 ^
/kisskb/src/net/bridge/br_device.c: In function 'br_get_stats64':
/kisskb/src/net/bridge/br_device.c:228:1: warning: 'br_get_stats64' uses dynamic stack allocation
 }
 ^
/kisskb/src/lib/test_kasan.c: In function 'kasan_alloca_oob_left':
/kisskb/src/lib/test_kasan.c:555:1: warning: 'kasan_alloca_oob_left' uses dynamic stack allocation
 }
 ^
/kisskb/src/lib/test_kasan.c: In function 'kasan_alloca_oob_right':
/kisskb/src/lib/test_kasan.c:565:1: warning: 'kasan_alloca_oob_right' uses dynamic stack allocation
 }
 ^
/kisskb/src/net/smc/smc_llc.c: In function 'smc_llc_srv_add_link_local':
/kisskb/src/net/smc/smc_llc.c:1145:9: warning: missing braces around initializer [-Wmissing-braces]
  struct smc_llc_msg_add_link add_llc = {0};
         ^
/kisskb/src/net/smc/smc_llc.c:1145:9: warning: (near initialization for 'add_llc.hd') [-Wmissing-braces]
/kisskb/src/net/smc/smc_llc.c: In function 'smc_llc_srv_delete_link_local':
/kisskb/src/net/smc/smc_llc.c:1178:9: warning: missing braces around initializer [-Wmissing-braces]
  struct smc_llc_msg_del_link del_llc = {0};
         ^
/kisskb/src/net/smc/smc_llc.c:1178:9: warning: (near initialization for 'del_llc.hd') [-Wmissing-braces]
/kisskb/src/net/smc/smc_llc.c: In function 'smc_llc_send_link_delete_all':
/kisskb/src/net/smc/smc_llc.c:1250:9: warning: missing braces around initializer [-Wmissing-braces]
  struct smc_llc_msg_del_link delllc = {0};
         ^
/kisskb/src/net/smc/smc_llc.c:1250:9: warning: (near initialization for 'delllc.hd') [-Wmissing-braces]
/kisskb/src/drivers/target/iscsi/cxgbit/cxgbit_target.c: In function 'cxgbit_tx_datain_iso.isra.35':
/kisskb/src/drivers/target/iscsi/cxgbit/cxgbit_target.c:498:1: warning: 'cxgbit_tx_datain_iso.isra.35' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/target/iscsi/iscsi_target.c: In function 'iscsit_send_datain':
/kisskb/src/drivers/target/iscsi/iscsi_target.c:2874:1: warning: 'iscsit_send_datain' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
 #warning Precise timer not defined for this architecture.
  ^
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_psr_enable':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8927:9: warning: missing braces around initializer [-Wmissing-braces]
  struct dc_static_screen_params params = {0};
         ^
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8927:9: warning: (near initialization for 'params.triggers') [-Wmissing-braces]
/kisskb/src/drivers/crypto/chelsio/chtls/chtls_cm.c: In function 'wait_for_states.constprop':
/kisskb/src/drivers/crypto/chelsio/chtls/chtls_cm.c:435:1: warning: 'wait_for_states.constprop' uses dynamic stack allocation
 }
 ^
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/bios/bios_parser2.c: In function 'bios_parser_get_i2c_info':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/bios/bios_parser2.c:297:9: warning: missing braces around initializer [-Wmissing-braces]
  struct atom_i2c_record dummy_record = {0};
         ^
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/bios/bios_parser2.c:297:9: warning: (near initialization for 'dummy_record.record_header') [-Wmissing-braces]
In file included from ./arch/s390/include/generated/asm/cacheflush.h:1:0,
                 from /kisskb/src/drivers/media/platform/omap3isp/isp.c:42:
/kisskb/src/include/asm-generic/cacheflush.h:16:42: warning: 'struct mm_struct' declared inside parameter list
 static inline void flush_cache_mm(struct mm_struct *mm)
                                          ^
/kisskb/src/include/asm-generic/cacheflush.h:16:42: warning: its scope is only this definition or declaration, which is probably not what you want
/kisskb/src/include/asm-generic/cacheflush.h:22:46: warning: 'struct mm_struct' declared inside parameter list
 static inline void flush_cache_dup_mm(struct mm_struct *mm)
                                              ^
/kisskb/src/include/asm-generic/cacheflush.h:30:10: warning: 'struct vm_area_struct' declared inside parameter list
          unsigned long end)
          ^
/kisskb/src/include/asm-generic/cacheflush.h:38:9: warning: 'struct vm_area_struct' declared inside parameter list
         unsigned long pfn)
         ^
/kisskb/src/include/asm-generic/cacheflush.h:44:45: warning: 'struct page' declared inside parameter list
 static inline void flush_dcache_page(struct page *page)
                                             ^
/kisskb/src/include/asm-generic/cacheflush.h:52:50: warning: 'struct address_space' declared inside parameter list
 static inline void flush_dcache_mmap_lock(struct address_space *mapping)
                                                  ^
/kisskb/src/include/asm-generic/cacheflush.h:58:52: warning: 'struct address_space' declared inside parameter list
 static inline void flush_dcache_mmap_unlock(struct address_space *mapping)
                                                    ^
/kisskb/src/include/asm-generic/cacheflush.h:75:17: warning: 'struct page' declared inside parameter list
          struct page *page)
                 ^
/kisskb/src/include/asm-generic/cacheflush.h:75:17: warning: 'struct vm_area_struct' declared inside parameter list
/kisskb/src/include/asm-generic/cacheflush.h:83:9: warning: 'struct page' declared inside parameter list
         unsigned long addr, int len)
         ^
/kisskb/src/include/asm-generic/cacheflush.h:83:9: warning: 'struct vm_area_struct' declared inside parameter list
/kisskb/src/drivers/mailbox/imx-mailbox.c:601:12: warning: 'imx_mu_suspend_noirq' defined but not used [-Wunused-function]
 static int imx_mu_suspend_noirq(struct device *dev)
            ^
/kisskb/src/drivers/mailbox/imx-mailbox.c:611:12: warning: 'imx_mu_resume_noirq' defined but not used [-Wunused-function]
 static int imx_mu_resume_noirq(struct device *dev)
            ^
/kisskb/src/drivers/mailbox/imx-mailbox.c:629:12: warning: 'imx_mu_runtime_suspend' defined but not used [-Wunused-function]
 static int imx_mu_runtime_suspend(struct device *dev)
            ^
/kisskb/src/drivers/mailbox/imx-mailbox.c:638:12: warning: 'imx_mu_runtime_resume' defined but not used [-Wunused-function]
 static int imx_mu_runtime_resume(struct device *dev)
            ^
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link_dp.c: In function 'dp_test_get_audio_test_data':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link_dp.c:2712:8: warning: missing braces around initializer [-Wmissing-braces]
  union audio_test_mode            dpcd_test_mode = {0};
        ^
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link_dp.c:2712:8: warning: (near initialization for 'dpcd_test_mode.bits') [-Wmissing-braces]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link_dp.c:2714:8: warning: missing braces around initializer [-Wmissing-braces]
  union audio_test_pattern_period  dpcd_pattern_period[AUDIO_CHANNELS_COUNT] = {0};
        ^
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link_dp.c:2714:8: warning: (near initialization for 'dpcd_pattern_period[0]') [-Wmissing-braces]
/kisskb/src/drivers/scsi/dc395x.c: In function '__dc395x_eh_bus_reset':
/kisskb/src/drivers/scsi/dc395x.c:155:36: warning: value computed is not used [-Wunused-value]
 #define DC395x_read8(acb,address)  (u8)(inb(acb->io_port_base + (address)))
                                    ^
/kisskb/src/drivers/scsi/dc395x.c:1197:2: note: in expansion of macro 'DC395x_read8'
  DC395x_read8(acb, TRM_S1040_SCSI_INTSTATUS);
  ^
/kisskb/src/drivers/scsi/dc395x.c: In function 'set_basic_config':
/kisskb/src/drivers/scsi/dc395x.c:155:36: warning: value computed is not used [-Wunused-value]
 #define DC395x_read8(acb,address)  (u8)(inb(acb->io_port_base + (address)))
                                    ^
/kisskb/src/drivers/scsi/dc395x.c:3489:2: note: in expansion of macro 'DC395x_read8'
  DC395x_read8(acb, TRM_S1040_SCSI_INTSTATUS);
  ^
/kisskb/src/drivers/scsi/dc395x.c: In function 'adapter_uninit_chip':
/kisskb/src/drivers/scsi/dc395x.c:155:36: warning: value computed is not used [-Wunused-value]
 #define DC395x_read8(acb,address)  (u8)(inb(acb->io_port_base + (address)))
                                    ^
/kisskb/src/drivers/scsi/dc395x.c:4435:2: note: in expansion of macro 'DC395x_read8'
  DC395x_read8(acb, TRM_S1040_SCSI_INTSTATUS);
  ^
In file included from /kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:40:0:
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c: In function 'mvpp2_setup_bm_pool':
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2.h:634:2: warning: overflow in implicit constant conversion [-Woverflow]
  ((total_size) - NET_SKB_PAD - MVPP2_SKB_SHINFO_SIZE)
  ^
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2.h:699:33: note: in expansion of macro 'MVPP2_RX_MAX_PKT_SIZE'
 #define MVPP2_BM_SHORT_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(MVPP2_BM_SHORT_FRAME_SIZE)
                                 ^
/kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:580:41: note: in expansion of macro 'MVPP2_BM_SHORT_PKT_SIZE'
  mvpp2_pools[MVPP2_BM_SHORT].pkt_size = MVPP2_BM_SHORT_PKT_SIZE;
                                         ^
/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
 }
 ^
/kisskb/src/arch/s390/boot/mem_detect.c: In function 'detect_memory':
/kisskb/src/arch/s390/boot/mem_detect.c:175:1: warning: 'detect_memory' uses dynamic stack allocation
 }
 ^
Completed OK
# rm -rf /kisskb/build/linus_s390-allyesconfig_s390x-gcc4.9
# Build took: 0:16:24.698274