diff options
| author | Josh Poimboeuf <jpoimboe@kernel.org> | 2025-04-09 15:49:36 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-04-10 22:55:00 +0200 |
| commit | 87cb582d2f55d379ce95b5bcc4ec596e29b0a65e (patch) | |
| tree | 2f59be37d12c8b4b5e30c893eada1ffd83c8d23a /tools | |
| parent | 2d12c6fb78753925f494ca9079e2383529e8ae0e (diff) | |
objtool: Fix false-positive "ignoring unreachables" warning
There's no need to try to automatically disable unreachable warnings if
they've already been manually disabled due to CONFIG_KCOV quirks.
This avoids a spurious warning with a KCOV kernel:
fs/smb/client/cifs_unicode.o: warning: objtool: cifsConvertToUTF16.part.0+0xce5: ignoring unreachables due to jump table quirk
Fixes: eeff7ac61526 ("objtool: Warn when disabling unreachable warnings")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/5eb28eeb6a724b7d945a961cfdcf8d41e6edf3dc.1744238814.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/r/202504090910.QkvTAR36-lkp@intel.com/
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/objtool/arch/x86/special.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/objtool/arch/x86/special.c b/tools/objtool/arch/x86/special.c index 403e587676f1..06ca4a2659a4 100644 --- a/tools/objtool/arch/x86/special.c +++ b/tools/objtool/arch/x86/special.c @@ -126,7 +126,7 @@ struct reloc *arch_find_switch_table(struct objtool_file *file, * indicates a rare GCC quirk/bug which can leave dead * code behind. */ - if (reloc_type(text_reloc) == R_X86_64_PC32) { + if (!file->ignore_unreachables && reloc_type(text_reloc) == R_X86_64_PC32) { WARN_INSN(insn, "ignoring unreachables due to jump table quirk"); file->ignore_unreachables = true; } |