From: claudiu beznea <claudiu.beznea@tuxon.dev>
To: Sergey Shtylyov <s.shtylyov@omp.ru>,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, p.zabel@pengutronix.de,
yoshihiro.shimoda.uh@renesas.com, geert+renesas@glider.be,
wsa+renesas@sang-engineering.com, biju.das.jz@bp.renesas.com,
prabhakar.mahadev-lad.rj@bp.renesas.com,
sergei.shtylyov@cogentembedded.com,
mitsuhiro.kimura.kc@renesas.com, masaru.nagai.vx@renesas.com
Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
linux-kernel@vger.kernel.org,
Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Subject: Re: [PATCH 02/13] net: ravb: Use pm_runtime_resume_and_get()
Date: Tue, 21 Nov 2023 07:57:54 +0200 [thread overview]
Message-ID: <33a44057-eefa-44ba-8e06-b6eb8bd79e59@tuxon.dev> (raw)
In-Reply-To: <a465e1fb-6ef8-0e10-1dc9-c6a17b955d11@omp.ru>
On 20.11.2023 21:23, Sergey Shtylyov wrote:
> On 11/20/23 11:45 AM, Claudiu wrote:
>
>> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
>>
>> pm_runtime_get_sync() may return with error. In case it returns with error
>> dev->power.usage_count needs to be decremented. pm_runtime_resume_and_get()
>> takes care of this. Thus use it.
>>
>> Along with this pm_runtime_resume_and_get() and reset_control_deassert()
>> were moved before alloc_etherdev_mqs() to simplify the error path.
>
> I don't see how it simplifies the error path...
By not changing it... Actually, I took the other approach: you suggested in
patch 1 to re-arrange the error path, I did it the other way around:
changed the initialization path...
> Re-ordering the statements at the end of the error path seems cheaper than
> what you do.
>
>> Also, in case pm_runtime_resume_and_get() returns error the reset signal
>> is deasserted and runtime PM is disabled (by jumping to the proper
>> error handling label).
>>
>> Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper")
>> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
> [...]
>
> MBR, Sergey
next prev parent reply other threads:[~2023-11-21 5:58 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-20 8:45 [PATCH 00/13] net: ravb: Add suspend to RAM and runtime PM support for RZ/G3S Claudiu
2023-11-20 8:45 ` [PATCH 01/13] net: ravb: Check return value of reset_control_deassert() Claudiu
2023-11-20 19:03 ` Sergey Shtylyov
2023-11-21 5:59 ` claudiu beznea
2023-11-24 19:04 ` Sergey Shtylyov
2023-11-20 8:45 ` [PATCH 02/13] net: ravb: Use pm_runtime_resume_and_get() Claudiu
2023-11-20 19:23 ` Sergey Shtylyov
2023-11-21 5:57 ` claudiu beznea [this message]
2023-11-24 19:02 ` Sergey Shtylyov
2023-11-20 8:45 ` [PATCH 03/13] net: ravb: Make write access to CXR35 first before accessing other EMAC registers Claudiu
2023-11-20 19:44 ` Sergey Shtylyov
2023-11-21 6:02 ` claudiu beznea
2023-11-23 19:30 ` Sergey Shtylyov
2023-11-20 8:45 ` [PATCH 04/13] net: ravb: Start TX queues after HW initialization succeeded Claudiu
2023-11-20 19:49 ` Sergey Shtylyov
2023-11-20 8:45 ` [PATCH 05/13] net: ravb: Stop DMA in case of failures on ravb_open() Claudiu
2023-11-20 20:01 ` Sergey Shtylyov
2023-11-20 8:45 ` [PATCH 06/13] net: ravb: Let IP specific receive function to interrogate descriptors Claudiu
2023-11-23 16:37 ` Sergey Shtylyov
2023-11-23 17:15 ` claudiu beznea
2023-11-24 17:27 ` Sergey Shtylyov
2023-11-20 8:46 ` [PATCH 07/13] net: ravb: Rely on PM domain to enable gptp_clk Claudiu
2023-11-22 16:59 ` Sergey Shtylyov
2023-11-20 8:46 ` [PATCH 08/13] net: ravb: Rely on PM domain to enable refclk Claudiu
2023-11-22 17:31 ` Sergey Shtylyov
2023-11-23 8:48 ` Geert Uytterhoeven
2023-11-23 17:10 ` claudiu beznea
2023-11-23 19:26 ` Sergey Shtylyov
2023-11-20 8:46 ` [PATCH 09/13] net: ravb: Make reset controller support mandatory Claudiu
2023-11-21 18:46 ` Sergey Shtylyov
2023-11-24 8:07 ` Geert Uytterhoeven
2023-11-20 8:46 ` [PATCH 10/13] net: ravb: Switch to SYSTEM_SLEEP_PM_OPS()/RUNTIME_PM_OPS() and pm_ptr() Claudiu
2023-11-21 20:29 ` Sergey Shtylyov
2023-12-06 11:36 ` Geert Uytterhoeven
2023-11-20 8:46 ` [PATCH 11/13] net: ravb: Use tabs instead of spaces Claudiu
2023-11-21 18:43 ` Sergey Shtylyov
2023-11-20 8:46 ` [PATCH 12/13] net: ravb: Assert/deassert reset on suspend/resume Claudiu
2023-11-21 19:13 ` Sergey Shtylyov
2023-11-22 16:41 ` Sergey Shtylyov
2023-11-20 8:46 ` [PATCH 13/13] net: ravb: Add runtime PM support Claudiu
2023-11-22 16:25 ` Sergey Shtylyov
2023-11-23 17:04 ` claudiu beznea
2023-11-23 19:19 ` Sergey Shtylyov
2023-11-24 18:03 ` claudiu beznea
2023-11-27 14:05 ` Geert Uytterhoeven
2023-11-27 14:46 ` claudiu beznea
2023-11-28 9:23 ` claudiu beznea
2023-11-27 19:01 ` Sergey Shtylyov
2023-11-30 17:35 ` Simon Horman
2023-11-20 20:48 ` [PATCH 00/13] net: ravb: Add suspend to RAM and runtime PM support for RZ/G3S Sergey Shtylyov
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