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Date: Fri, 9 Oct 2026 14:21:18 +0100
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Subject: Re: [PATCH v3] ARM, ARM64, LONGARCH, XTENSA: Delay HW BP notification
 to task_work()
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
 linux-rt-devel@lists.linux.dev, linux-perf-users@vger.kernel.org,
 loongarch@lists.linux.dev, "Luis Claudio R. Goncalves"
 <lgoncalv@redhat.com>, Waiman Long <longman@redhat.com>,
 Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>,
 Mark Rutland <mark.rutland@arm.com>, Clark Williams <clrkwllms@kernel.org>,
 Steven Rostedt <rostedt@goodmis.org>, Adrian Hunter
 <adrian.hunter@intel.com>,
 Alexander Shishkin <alexander.shishkin@linux.intel.com>,
 Arnaldo Carvalho de Melo <acme@kernel.org>,
 Huacai Chen <chenhuacai@kernel.org>, Ian Rogers <irogers@google.com>,
 Ingo Molnar <mingo@redhat.com>, James Clark <james.clark@linaro.org>,
 Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
 Oleg Nesterov <oleg@redhat.com>, Peter Zijlstra <peterz@infradead.org>,
 Russell King <linux@armlinux.org.uk>, WANG Xuerui <kernel@xen0n.name>,
 Chris Zankel <chris@zankel.net>, Max Filippov <jcmvbkbc@gmail.com>,
 Linus Walleij <linusw@kernel.org>, Ada Couprie Diaz <ada.coupriediaz@arm.com>
References: <20261001143516.Ew8C97WS@linutronix.de>
 <fd405cda-51bd-4b1c-803c-f2597b2b128e@arm.com>
 <20261008192117.ZIKKU3Yh@linutronix.de>
From: Ada Couprie Diaz <ada.coupriediaz@arm.com>
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In-Reply-To: <20261008192117.ZIKKU3Yh@linutronix.de>
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Hi Sebastian,

On 08/10/2026 20:21, Sebastian Andrzej Siewior wrote:
> On 2026-10-06 18:17:52 [+0100], Ada Couprie Diaz wrote:
>> Hi Sebastian,
> Hi Ada,
>
>> I find the function names a bit counter-intuitive, compared to the other
>> arch-specific perf functions.
>> Given the name `perf_arch_...`, I would have expected them to be defined
>> in arch code, rather than in the generic perf code.
>>  From what I can see, usually perf functions calling an arch-specific
>> function lack the `_arch_` infix of their `arch_` counterpart.
>>
>> I do not know very well what we expect in perf, so I might be off-base,
>> but would calling them `perf_hwbp_send_sig()` and `perf_hwbp_notify()`
>> make sense ?
> Thanks for looking at this. I renamed them as:
> - perf_arch_hwbp_notify() -> perf_hwbp_notify() (generic)
> - arch_hwbp_send_sig() -> perf_arch_hwbp_send_sig() (arch specific)
> - perf_arch_hwbp_send_sig() -> perf_hwbp_send_sig() (generic)
>
> [...]
>
> Sebastian
That sounds good to me, thanks !
Kind regards
Ada