linux-kernel - Re: [PATCH] arm64: simplify arch_uprobe_xol_was

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <34b20d6a-c5ee-4670-acd7-688d6b7f8732@arm.com>
Date: Thu, 27 Nov 2025 09:29:15 +0530
From: Anshuman Khandual <anshuman.khandual@....com>
To: Osama Abdelkader <osama.abdelkader@...il.com>, mhiramat@...nel.org,
 oleg@...hat.com, peterz@...radead.org, catalin.marinas@....com,
 will@...nel.org
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: simplify arch_uprobe_xol_was_trapped return

On 27/11/25 4:01 AM, Osama Abdelkader wrote:
> convert arch_uprobe_xol_was_trapped() from explicit if/return true
> return false pattern to direct boolean expression return in
> arch/arm64/kernel/probes/uprobes.c
> 
> Signed-off-by: Osama Abdelkader <osama.abdelkader@...il.com>

Reviewed-by: Anshuman Khandual <anshuman.khandual@....com>

> ---
>  arch/arm64/kernel/probes/uprobes.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/kernel/probes/uprobes.c b/arch/arm64/kernel/probes/uprobes.c
> index 2799bdb2fb82..b38c1dab7eb4 100644
> --- a/arch/arm64/kernel/probes/uprobes.c
> +++ b/arch/arm64/kernel/probes/uprobes.c
> @@ -103,10 +103,7 @@ bool arch_uprobe_xol_was_trapped(struct task_struct *t)
>  	 * insn itself is trapped, then detect the case with the help of
>  	 * invalid fault code which is being set in arch_uprobe_pre_xol
>  	 */
> -	if (t->thread.fault_code != UPROBE_INV_FAULT_CODE)
> -		return true;
> -
> -	return false;
> +	return t->thread.fault_code != UPROBE_INV_FAULT_CODE;
>  }
>  
>  bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs)