From: Frederic Weisbecker <frederic@kernel.org>
To: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
paulmck@kernel.org, keescook@chromium.org
Subject: Re: [PATCH 1/3] context_tracking: Fix KCSAN noinstr violation
Date: Thu, 13 Apr 2023 15:58:01 +0200 [thread overview]
Message-ID: <ZDgKaUxIZTMlb1di@localhost.localdomain> (raw)
In-Reply-To: <dc93f45abdec90c171108b4b590b7fff5790963c.1681320026.git.jpoimboe@kernel.org>
Le Wed, Apr 12, 2023 at 10:24:06AM -0700, Josh Poimboeuf a écrit :
> With KCSAN enabled, even empty inline stubs can be out-of-lined.
>
> Force the context_tracking_guest_exit() stub inline.
>
> Fixes the following warnings:
>
> vmlinux.o: warning: objtool: vmx_vcpu_enter_exit+0x1be: call to context_tracking_guest_exit() leaves .noinstr.text section
> vmlinux.o: warning: objtool: svm_vcpu_enter_exit+0x85: call to context_tracking_guest_exit() leaves .noinstr.text section
>
> Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Thanks!
next prev parent reply other threads:[~2023-04-13 13:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-12 17:24 [PATCH 0/3] noinstr fixes Josh Poimboeuf
2023-04-12 17:24 ` [PATCH 1/3] context_tracking: Fix KCSAN noinstr violation Josh Poimboeuf
2023-04-13 13:58 ` Frederic Weisbecker [this message]
2023-04-14 14:47 ` [tip: objtool/core] " tip-bot2 for Josh Poimboeuf
2023-04-12 17:24 ` [PATCH 2/3] sched: " Josh Poimboeuf
2023-04-14 14:47 ` [tip: objtool/core] " tip-bot2 for Josh Poimboeuf
2023-04-12 17:24 ` [PATCH 3/3] lkdtm/stackleak: Fix " Josh Poimboeuf
2023-04-14 14:47 ` [tip: objtool/core] " tip-bot2 for Josh Poimboeuf
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