From: Mark Rutland <mark.rutland@arm.com>
To: Will Deacon <will.deacon@arm.com>
Cc: catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 04/10] arm64: debug: Rename addr parameter for non-watchpoint exception hooks
Date: Fri, 1 Mar 2019 13:49:59 +0000 [thread overview]
Message-ID: <20190301134959.GE15517@lakrids.cambridge.arm.com> (raw)
In-Reply-To: <20190301132809.24653-5-will.deacon@arm.com>
On Fri, Mar 01, 2019 at 01:28:03PM +0000, Will Deacon wrote:
> Since the 'addr' parameter contains an UNKNOWN value for non-watchpoint
> debug exceptions, rename it to 'unused' for those hooks so we don't get
> tempted to use it in the future.
>
> Signed-off-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Mark.
> ---
> arch/arm64/kernel/debug-monitors.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
> index d7bb6aefae0a..c4c263d0cf0f 100644
> --- a/arch/arm64/kernel/debug-monitors.c
> +++ b/arch/arm64/kernel/debug-monitors.c
> @@ -222,7 +222,7 @@ static void send_user_sigtrap(int si_code)
> "User debug trap");
> }
>
> -static int single_step_handler(unsigned long addr, unsigned int esr,
> +static int single_step_handler(unsigned long unused, unsigned int esr,
> struct pt_regs *regs)
> {
> bool handler_found = false;
> @@ -302,7 +302,7 @@ static int call_break_hook(struct pt_regs *regs, unsigned int esr)
> }
> NOKPROBE_SYMBOL(call_break_hook);
>
> -static int brk_handler(unsigned long addr, unsigned int esr,
> +static int brk_handler(unsigned long unused, unsigned int esr,
> struct pt_regs *regs)
> {
> bool handler_found = false;
> --
> 2.11.0
>
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next prev parent reply other threads:[~2019-03-01 13:50 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-01 13:27 [PATCH 00/10] Rework debug exception handling code Will Deacon
2019-03-01 13:28 ` [PATCH 01/10] arm64: debug: Don't propagate UNKNOWN FAR into si_code for debug signals Will Deacon
2019-03-01 13:28 ` Will Deacon
2019-03-01 13:45 ` Mark Rutland
2019-03-01 13:45 ` Mark Rutland
2019-03-05 13:35 ` Sasha Levin
2019-03-01 13:28 ` [PATCH 02/10] arm64: debug: Ensure debug handlers check triggering exception level Will Deacon
2019-03-01 13:28 ` Will Deacon
2019-03-01 13:46 ` Mark Rutland
2019-03-01 13:46 ` Mark Rutland
2019-03-05 13:35 ` Sasha Levin
2019-03-01 13:28 ` [PATCH 03/10] arm64: debug: Remove unused return value from do_debug_exception() Will Deacon
2019-03-01 13:48 ` Mark Rutland
2019-03-01 13:28 ` [PATCH 04/10] arm64: debug: Rename addr parameter for non-watchpoint exception hooks Will Deacon
2019-03-01 13:49 ` Mark Rutland [this message]
2019-03-01 13:28 ` [PATCH 05/10] arm64: debug: Remove meaningless comment Will Deacon
2019-03-01 14:08 ` Mark Rutland
2019-03-01 13:28 ` [PATCH 06/10] arm64: debug: Separate debug hooks based on target exception level Will Deacon
2019-03-01 14:07 ` Mark Rutland
2019-03-01 13:28 ` [PATCH 07/10] arm64: kprobes: Avoid calling kprobes debug handlers explicitly Will Deacon
2019-03-01 14:12 ` Mark Rutland
2019-03-01 13:28 ` [PATCH 08/10] arm64: debug: Remove redundant user_mode(regs) checks from debug handlers Will Deacon
2019-03-01 14:13 ` Mark Rutland
2019-03-01 13:28 ` [PATCH 09/10] arm64: probes: Move magic BRK values into brk-imm.h Will Deacon
2019-03-01 14:16 ` Mark Rutland
2019-03-01 13:28 ` [PATCH 10/10] arm64: debug: Clean up brk_handler() Will Deacon
2019-03-01 14:17 ` Mark Rutland
2019-03-01 16:24 ` [PATCH 00/10] Rework debug exception handling code Catalin Marinas
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