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kunit: fix longest symbol length test

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The kunit test that checks the longests symbol length [1], has triggered
warnings in some pilelines when symbol prefixes are used [2][3]. The test
will to depend on !PREFIX_SYMBOLS and !CFI_CLANG as sujested in [4] and
on !GCOV_KERNEL.

[1] https://lore.kernel.org/rust-for-linux/CABVgOSm=5Q0fM6neBhxSbOUHBgNzmwf2V22vsYC10YRBT=kN1g@mail.gmail.com/T/#t
[2] https://lore.kernel.org/all/[email protected]/T/#u
[3] https://lore.kernel.org/rust-for-linux/[email protected]/T/#t
[4] https://lore.kernel.org/linux-kselftest/20250427200916.GA1661412@ax162/T/#t

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Rae Moar <[email protected]>
Signed-off-by: Sergio González Collado <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Tested-by: Randy Dunlap <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
This commit is contained in:
Sergio González Collado authored and Shuah Khan committed 2025-07-10 14:02:07 -06:00
1 parent 5ac244b9cc
commit 34db4fba81
2 files changed
+2 -2
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lib/Kconfig.debug
+1
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@@ -2885,6 +2885,7 @@ config FORTIFY_KUNIT_TEST
config LONGEST_SYM_KUNIT_TEST
tristate "Test the longest symbol possible" if !KUNIT_ALL_TESTS
depends on KUNIT && KPROBES
depends on !PREFIX_SYMBOLS && !CFI_CLANG && !GCOV_KERNEL
default KUNIT_ALL_TESTS
help
Tests the longest symbol possible
lib/tests/longest_symbol_kunit.c
+1 -2
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@@ -3,8 +3,7 @@
* Test the longest symbol length. Execute with:
* ./tools/testing/kunit/kunit.py run longest-symbol
* --arch=x86_64 --kconfig_add CONFIG_KPROBES=y --kconfig_add CONFIG_MODULES=y
* --kconfig_add CONFIG_RETPOLINE=n --kconfig_add CONFIG_CFI_CLANG=n
* --kconfig_add CONFIG_MITIGATION_RETPOLINE=n
* --kconfig_add CONFIG_CPU_MITIGATIONS=n --kconfig_add CONFIG_GCOV_KERNEL=n
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt