[tip: objtool/urgent] objtool: Silence more KCOV warnings, part 2
From: tip-bot2 for Josh Poimboeuf
Date: Tue Apr 01 2025 - 03:16:35 EST
The following commit has been merged into the objtool/urgent branch of tip:
Commit-ID: 55c78035a1a8dfb05f1472018ce2a651701adb7d
Gitweb: https://git.kernel.org/tip/55c78035a1a8dfb05f1472018ce2a651701adb7d
Author: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
AuthorDate: Mon, 31 Mar 2025 21:26:36 -07:00
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Tue, 01 Apr 2025 09:07:12 +02:00
objtool: Silence more KCOV warnings, part 2
Similar to GCOV, KCOV can leave behind dead code and undefined behavior.
Warnings related to those should be ignored.
The previous commit:
6b023c784204 ("objtool: Silence more KCOV warnings")
... only did so for CONFIG_CGOV_KERNEL. Also do it for CONFIG_KCOV, but
for real this time.
Fixes the following warning:
vmlinux.o: warning: objtool: synaptics_report_mt_data: unexpected end of section .text.synaptics_report_mt_data
Fixes: 6b023c784204 ("objtool: Silence more KCOV warnings")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/a44ba16e194bcbc52c1cef3d3cd9051a62622723.1743481539.git.jpoimboe@xxxxxxxxxx
Closes: https://lore.kernel.org/oe-kbuild-all/202503282236.UhfRsF3B-lkp@xxxxxxxxx/
---
scripts/Makefile.lib | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index b935974..4d54305 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -275,7 +275,7 @@ objtool-args-$(CONFIG_MITIGATION_SLS) += --sls
objtool-args-$(CONFIG_STACK_VALIDATION) += --stackval
objtool-args-$(CONFIG_HAVE_STATIC_CALL_INLINE) += --static-call
objtool-args-$(CONFIG_HAVE_UACCESS_VALIDATION) += --uaccess
-objtool-args-$(CONFIG_GCOV_KERNEL) += --no-unreachable
+objtool-args-$(or $(CONFIG_GCOV_KERNEL),$(CONFIG_KCOV)) += --no-unreachable
objtool-args-$(CONFIG_PREFIX_SYMBOLS) += --prefix=$(CONFIG_FUNCTION_PADDING_BYTES)
objtool-args-$(CONFIG_OBJTOOL_WERROR) += --Werror