# git rev-parse -q --verify 4b93c544e90e2b28326182d31ee008eb80e02074^{commit}
4b93c544e90e2b28326182d31ee008eb80e02074
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4b93c544e90e2b28326182d31ee008eb80e02074
# git clean -qxdf
# < git log -1
# commit 4b93c544e90e2b28326182d31ee008eb80e02074
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Sep 6 12:27:03 2021 -0700
# 
#     thunderbolt: test: split up test cases in tb_test_credit_alloc_all
#     
#     The tb_test_credit_alloc_all() function had a huge number of
#     KUNIT_ASSERT() statements, all of which (though the magic of many many
#     layers of inscrutable macros) ended up allocating and initializing
#     various test assertion structures on the stack.
#     
#     Don't do that.  The kernel stack isn't infinite, and we have compiler
#     warnings (now errors) for the case where a stack frame grows too large.
#     
#     Like it did here, by not an inconsiderable margin:
#     
#        drivers/thunderbolt/test.c: In function ‘tb_test_credit_alloc_all’:
#        drivers/thunderbolt/test.c:2367:1: error: the frame size of 4500 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
#         2367 | }
#              | ^
#     
#     Solve this similarly to the lib/test_scanf case: split out the tests
#     into several smaller functions, each just testing one particular tunnel
#     credit allocation.
#     
#     This makes the i386 allyesconfig build work for me again.
#     
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 4b93c544e90e2b28326182d31ee008eb80e02074
# < make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# < make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  
/kisskb/src/arch/s390/kernel/syscall.c: In function '__do_syscall':
/kisskb/src/arch/s390/kernel/syscall.c:168:1: error: '__do_syscall' uses dynamic stack allocation [-Werror]
 }
 ^
cc1: all warnings being treated as errors
make[3]: *** [/kisskb/src/scripts/Makefile.build:277: arch/s390/kernel/syscall.o] Error 1
make[2]: *** [/kisskb/src/scripts/Makefile.build:540: arch/s390/kernel] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1872: arch/s390] Error 2
make[1]: *** Waiting for unfinished jobs....
/kisskb/src/kernel/trace/trace_osnoise.c: In function 'start_kthread':
/kisskb/src/kernel/trace/trace_osnoise.c:1515:8: error: 'main' is usually a function [-Werror=main]
  void *main = osnoise_main;
        ^~~~
cc1: all warnings being treated as errors
make[3]: *** [/kisskb/src/scripts/Makefile.build:277: kernel/trace/trace_osnoise.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:540: kernel/trace] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1872: kernel] Error 2
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_s390-allmodconfig_s390x-gcc8
# Build took: 0:03:57.622913