# 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-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 4b93c544e90e2b28326182d31ee008eb80e02074
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/fsp2_defconfig
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 8 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5
# Build took: 0:01:53.743807