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From: "tip-bot2 for Josh Poimboeuf" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: kernel test robot <lkp@intel.com>,
	Josh Poimboeuf <jpoimboe@kernel.org>,
	Ingo Molnar <mingo@kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [tip: objtool/urgent] objtool: Silence more KCOV warnings, part 2
Date: Tue, 01 Apr 2025 07:15:21 -0000	[thread overview]
Message-ID: <174349172182.14745.15104179899500326383.tip-bot2@tip-bot2> (raw)
In-Reply-To: <a44ba16e194bcbc52c1cef3d3cd9051a62622723.1743481539.git.jpoimboe@kernel.org>

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@kernel.org>
AuthorDate:    Mon, 31 Mar 2025 21:26:36 -07:00
Committer:     Ingo Molnar <mingo@kernel.org>
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@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/
---
 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
 

  reply	other threads:[~2025-04-01  7:15 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-01  4:26 [PATCH 00/11] Yet more objtool fixes Josh Poimboeuf
2025-04-01  4:26 ` [PATCH 01/11] objtool: Silence more KCOV warnings, part 2 Josh Poimboeuf
2025-04-01  7:15   ` tip-bot2 for Josh Poimboeuf [this message]
2025-04-01  4:26 ` [PATCH 02/11] objtool: Ignore end-of-section jumps for KCOV/GCOV Josh Poimboeuf
2025-04-01  7:15   ` [tip: objtool/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-01  4:26 ` [PATCH 03/11] objtool: Append "()" to function name in "unexpected end of section" warning Josh Poimboeuf
2025-04-01  7:15   ` [tip: objtool/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-01  4:26 ` [PATCH 04/11] Revert "objtool: Increase per-function WARN_FUNC() rate limit" Josh Poimboeuf
2025-04-01  7:15   ` [tip: objtool/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-01  4:26 ` [PATCH 05/11] objtool: Always fail on fatal errors Josh Poimboeuf
2025-04-01  7:15   ` [tip: objtool/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-01  4:26 ` [PATCH 06/11] objtool: Change "warning:" to "error:" for " Josh Poimboeuf
2025-04-01  7:15   ` [tip: objtool/urgent] objtool: Change "warning:" to "error: " " tip-bot2 for Josh Poimboeuf
2025-04-01  4:26 ` [PATCH 07/11] objtool: Fix verbose disassembly if CROSS_COMPILE isn't set Josh Poimboeuf
2025-04-01  7:15   ` [tip: objtool/urgent] " tip-bot2 for David Laight
2025-04-01  4:26 ` [PATCH 08/11] objtool/loongarch: Add unwind hints in prepare_frametrace() Josh Poimboeuf
2025-04-01  7:08   ` Ingo Molnar
2025-04-01  7:45     ` Tiezhu Yang
2025-04-01  8:10       ` Ingo Molnar
2025-04-01  8:29         ` Tiezhu Yang
2025-04-01  8:17   ` [tip: objtool/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-01  4:26 ` [PATCH 09/11] sched/smt: Always inline sched_smt_active() Josh Poimboeuf
2025-04-01  7:15   ` [tip: objtool/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-01  4:26 ` [PATCH 10/11] context_tracking: Always inline ct_{nmi,irq}_{enter,exit}() Josh Poimboeuf
2025-04-01  7:15   ` [tip: objtool/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-01  7:26   ` tip-bot2 for Josh Poimboeuf
2025-04-01  4:26 ` [PATCH 11/11] rcu-tasks: Always inline rcu_irq_work_resched() Josh Poimboeuf
2025-04-01  7:14   ` [tip: objtool/urgent] " tip-bot2 for Josh Poimboeuf
2025-04-01  7:26   ` tip-bot2 for Josh Poimboeuf

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