[PATCH v2 6.6.y 0/2] Kunit to check the longest symbol length

["Sergio González Collado" <sergio.collado@gmail.com>]

Hello,

Please consider this series for 6.6.y

This patch series backports two patches that implement a test to verify
that a symbol with KSYM_NAME_LEN of 512 can be read.

The first patch implements the test. This commit also includes a fix
for the test x86/insn_decoder_test. In the case a symbol exceeds the
symbol length limit, an error will happen:

    arch/x86/tools/insn_decoder_test: error: malformed line 1152000:
    tBb_+0xf2>

..which overflowed by 10 characters reading this line:

    ffffffff81458193:   74 3d                   je
ffffffff814581d2
<_RNvXse_NtNtNtCshGpAVYOtgW1_4core4iter8adapters7flattenINtB5_13FlattenCompatINtNtB7_3map3MapNtNtNtBb_3str4iter5CharsNtB1v_17CharEscapeDefaultENtNtBb_4char13EscapeDefaultENtNtBb_3fmt5Debug3fmtBb_+0xf2>

The fix was proposed in [1] and initially mentioned at [2].

The second patch fixes a warning when building with clang because
there was a definition of unlikely from compiler.h in tools/include/linux,
which conflicted with the one in the instruction decoder selftest.

[1] https://lore.kernel.org/lkml/Y9ES4UKl%2F+DtvAVS@gmail.com/
[2] https://lore.kernel.org/lkml/320c4dba-9919-404b-8a26-a8af16be1845@app.fastmail.com/

Signed-off-by: Sergio González Collado <sergio.collado@gmail.com>
---
Changes in v2: sign-off patch 2/2

---
Nathan Chancellor (1):
  x86/tools: Drop duplicate unlikely() definition in insn_decoder_test.c

Sergio González Collado (1):
  Kunit to check the longest symbol length

 arch/x86/tools/insn_decoder_test.c |  5 +-
 lib/Kconfig.debug                  |  9 ++++
 lib/Makefile                       |  2 +
 lib/longest_symbol_kunit.c         | 82 ++++++++++++++++++++++++++++++
 4 files changed, 95 insertions(+), 3 deletions(-)
 create mode 100644 lib/longest_symbol_kunit.c


base-commit: 6282921b6825fef6a1243e1c80063421d41e2576
-- 
2.39.2