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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@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/a44ba16e194bcbc52c1cef3d3cd9051a62622723.1743481539.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/oe-kbuild-all/202503282236.UhfRsF3B-lkp@intel.com/

authored by

Josh Poimboeuf and committed by
Ingo Molnar 55c78035 ae958b12

+1 -1
+1 -1
scripts/Makefile.lib
··· 275 275 objtool-args-$(CONFIG_STACK_VALIDATION) += --stackval 276 276 objtool-args-$(CONFIG_HAVE_STATIC_CALL_INLINE) += --static-call 277 277 objtool-args-$(CONFIG_HAVE_UACCESS_VALIDATION) += --uaccess 278 - objtool-args-$(CONFIG_GCOV_KERNEL) += --no-unreachable 278 + objtool-args-$(or $(CONFIG_GCOV_KERNEL),$(CONFIG_KCOV)) += --no-unreachable 279 279 objtool-args-$(CONFIG_PREFIX_SYMBOLS) += --prefix=$(CONFIG_FUNCTION_PADDING_BYTES) 280 280 objtool-args-$(CONFIG_OBJTOOL_WERROR) += --Werror 281 281