From: Mark Rutland <mark.rutland@arm.com>
To: Osama Abdelkader <osama.abdelkader@gmail.com>
Cc: smostafa@google.com, catalin.marinas@arm.com,
linux-kernel@vger.kernel.org, will@kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] arm64: Remove unreachable break after die
Date: Thu, 27 Nov 2025 09:20:57 +0000 [thread overview]
Message-ID: <aSgX-br67x5Y-kBZ@J2N7QTR9R3> (raw)
In-Reply-To: <20251126222620.215245-1-osama.abdelkader@gmail.com>
On Thu, Nov 27, 2025 at 12:26:20AM +0200, Osama Abdelkader wrote:
> die() never returns, the break is unreachable in arch/arm64/kernel/traps.c
Is the break causing some problem, e.g. a compiler warning?
If not, then I don't see a reason to remove the break.
There are many other instances of "die(...); break" throughout the
kernel, and this doesn't seem to be speecial.
Mark.
> Signed-off-by: Osama Abdelkader <osama.abdelkader@gmail.com>
> ---
> arch/arm64/kernel/traps.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
> index 681939ef5d16..81dd2d7759eb 100644
> --- a/arch/arm64/kernel/traps.c
> +++ b/arch/arm64/kernel/traps.c
> @@ -1003,7 +1003,6 @@ int bug_brk_handler(struct pt_regs *regs, unsigned long esr)
> switch (report_bug(regs->pc, regs)) {
> case BUG_TRAP_TYPE_BUG:
> die("Oops - BUG", regs, esr);
> - break;
>
> case BUG_TRAP_TYPE_WARN:
> break;
> --
> 2.43.0
>
next prev parent reply other threads:[~2025-11-27 9:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-26 22:26 [PATCH] arm64: Remove unreachable break after die Osama Abdelkader
2025-11-27 9:20 ` Mark Rutland [this message]
2025-11-28 2:31 ` Anshuman Khandual
2025-11-28 16:10 ` Osama Abdelkader
2025-11-28 2:41 ` kernel test robot
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