linux-kernel - Re: [PATCH 1/5] Powerpc/hw-breakpoint: Replace stale do_dabr() with do

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

Date:   Tue, 18 Jun 2019 16:02:50 +1000
From:   Michael Neuling <mikey@...ling.org>
To:     Ravi Bangoria <ravi.bangoria@...ux.ibm.com>, mpe@...erman.id.au
Cc:     benh@...nel.crashing.org, paulus@...ba.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        npiggin@...il.com, christophe.leroy@....fr,
        naveen.n.rao@...ux.vnet.ibm.com
Subject: Re: [PATCH 1/5] Powerpc/hw-breakpoint: Replace stale do_dabr() with
 do_break()

> Subject: Powerpc/hw-breakpoint: Replace stale do_dabr() with do_break()

Can you add the word "comment" to this subject. Currently it implies there are
code changes here.

Mikey


On Tue, 2019-06-18 at 09:57 +0530, Ravi Bangoria wrote:
> do_dabr() was renamed with do_break() long ago. But I still see
> some comments mentioning do_dabr(). Replace it.
> 
> Signed-off-by: Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
> ---
>  arch/powerpc/kernel/hw_breakpoint.c | 2 +-
>  arch/powerpc/kernel/ptrace.c        | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/hw_breakpoint.c
> b/arch/powerpc/kernel/hw_breakpoint.c
> index a293a53b4365..1908e4fcc132 100644
> --- a/arch/powerpc/kernel/hw_breakpoint.c
> +++ b/arch/powerpc/kernel/hw_breakpoint.c
> @@ -232,7 +232,7 @@ int hw_breakpoint_handler(struct die_args *args)
>  	 * Return early after invoking user-callback function without restoring
>  	 * DABR if the breakpoint is from ptrace which always operates in
>  	 * one-shot mode. The ptrace-ed process will receive the SIGTRAP signal
> -	 * generated in do_dabr().
> +	 * generated in do_break().
>  	 */
>  	if (bp->overflow_handler == ptrace_triggered) {
>  		perf_bp_event(bp, regs);
> diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
> index 684b0b315c32..44b823e5e8c8 100644
> --- a/arch/powerpc/kernel/ptrace.c
> +++ b/arch/powerpc/kernel/ptrace.c
> @@ -2373,7 +2373,7 @@ void ptrace_triggered(struct perf_event *bp,
>  	/*
>  	 * Disable the breakpoint request here since ptrace has defined a
>  	 * one-shot behaviour for breakpoint exceptions in PPC64.
> -	 * The SIGTRAP signal is generated automatically for us in do_dabr().
> +	 * The SIGTRAP signal is generated automatically for us in do_break().
>  	 * We don't have to do anything about that here
>  	 */
>  	attr = bp->attr;