From: Sasha Levin <sashal@kernel.org>
To: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: linux-kernel@vger.kernel.org,
Alexander Potapenko <glider@google.com>,
Andrey Konovalov <andreyknvl@gmail.com>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Bill Wendling <morbo@google.com>, Borislav Petkov <bp@alien8.de>,
Chuck Wolber <chuck@wolber.net>,
Dave Hansen <dave.hansen@linux.intel.com>,
Dmitry Vyukov <dvyukov@google.com>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
Johannes Berg <johannes@sipsolutions.net>,
Justin Stitt <justinstitt@google.com>,
kasan-dev@googlegroups.com, linux-kbuild@vger.kernel.org,
linux-um@lists.infradead.org, llvm@lists.linux.dev,
Marco Elver <elver@google.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Nicolas Schier <nsc@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Richard Weinberger <richard@nod.at>,
Thomas Gleixner <tglx@kernel.org>,
x86@kernel.org
Subject: Re: [PATCH v2 19/20] gcov: add MC/DC condition coverage support
Date: Thu, 5 Nov 2026 20:05:12 -0500 [thread overview]
Message-ID: <20261106010512.3647568-1-sashal@kernel.org> (raw)
In-Reply-To: <dd2b2658-cb4a-4ba9-b69c-470d433a0ef5@linux.ibm.com>
On Thu, Nov 05, 2026 at 06:56:10PM +0100, Peter Oberparleiter wrote:
>> + depends on LLVM_COV_KERNEL || (GCOV_KERNEL && CC_HAS_CONDITION_COVERAGE)
>> + depends on !LLVM_COV_KERNEL || CLANG_VERSION >= 220000 || !WERROR
>
>Would it make sense to transform this for readability, i.e.
>
>depends on !(LLVM_COV_KERNEL && CLANG_VERSION < 220000 && WERROR)
Yes, that reads better. I'll switch to it in v3, thanks.
--
Thanks,
Sasha
next prev parent reply other threads:[~2026-11-06 1:05 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-03 1:52 [PATCH v2 00/20] Unify code coverage and add Clang source-based coverage with MC/DC Sasha Levin
2026-11-03 1:52 ` [PATCH v2 01/20] coverage: move gcov and kcov under kernel/coverage/ Sasha Levin
2026-11-05 17:38 ` Peter Oberparleiter
2026-11-03 1:52 ` [PATCH v2 02/20] kbuild: unify static coverage instrumentation as COVERAGE_PROFILE Sasha Levin
2026-11-03 1:52 ` [PATCH v2 03/20] coverage: add a common debugfs interface Sasha Levin
2026-11-05 17:49 ` Peter Oberparleiter
2026-11-06 1:05 ` Sasha Levin
2026-11-03 1:52 ` [PATCH v2 04/20] compiler_types.h: Don't instrument __always_inline functions for coverage Sasha Levin
2026-11-03 1:52 ` [PATCH v2 05/20] context_tracking: Always inline the empty stubs called from noinstr code Sasha Levin
2026-11-03 1:52 ` [PATCH v2 06/20] lockdep: " Sasha Levin
2026-11-03 1:52 ` [PATCH v2 07/20] perf: Always inline the empty perf_lopwr_cb() stub Sasha Levin
2026-11-03 1:52 ` [PATCH v2 08/20] rseq: Always inline the empty stubs called from noinstr code Sasha Levin
2026-11-03 1:52 ` [PATCH v2 09/20] x86: Always inline " Sasha Levin
2026-11-03 1:52 ` [PATCH v2 10/20] x86/sev: Use non-instrumented bitops in the GHCB accessors Sasha Levin
2026-11-04 13:36 ` Sean Christopherson
2026-11-03 1:52 ` [PATCH v2 11/20] objtool: Detect code coverage instrumentation in noinstr code Sasha Levin
2026-11-03 1:52 ` [PATCH v2 12/20] x86/sev: Stop excluding noinstr.o from code coverage Sasha Levin
2026-11-03 1:52 ` [PATCH v2 13/20] x86/entry: Stop excluding the entry code from KCOV Sasha Levin
2026-11-03 1:52 ` [PATCH v2 14/20] coverage: add Clang's source-based code coverage Sasha Levin
2026-11-03 1:52 ` [PATCH v2 15/20] x86: Enable " Sasha Levin
2026-11-03 1:52 ` [PATCH v2 16/20] coverage: add MC/DC measurement Sasha Levin
2026-11-03 1:52 ` [PATCH v2 17/20] gcov: fix gcov_info_add() merge semantics for IOR counters Sasha Levin
2026-11-05 17:50 ` Peter Oberparleiter
2026-11-03 1:52 ` [PATCH v2 18/20] kconfig: add CC_HAS_CONDITION_COVERAGE for MC/DC support detection Sasha Levin
2026-11-03 1:52 ` [PATCH v2 19/20] gcov: add MC/DC condition coverage support Sasha Levin
2026-11-05 17:56 ` Peter Oberparleiter
2026-11-06 1:05 ` Sasha Levin [this message]
2026-11-03 1:52 ` [PATCH v2 20/20] Documentation: dev-tools: document the common code coverage interface Sasha Levin
2026-11-05 17:36 ` [PATCH v2 00/20] Unify code coverage and add Clang source-based coverage with MC/DC Peter Oberparleiter
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