From: sathyanarayanan kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com>
To: Lukas Wunner <lukas@wunner.de>
Cc: Denis Efremov <efremov@linux.com>,
Bjorn Helgaas <bhelgaas@google.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/4] PCI: pciehp: Add pciehp_set_indicators() to jointly set LED indicators
Date: Mon, 12 Aug 2019 14:03:50 -0700 [thread overview]
Message-ID: <c9bb5e76-d6f6-9d59-d581-564e1385aa45@linux.intel.com> (raw)
In-Reply-To: <20190812204024.r54ihfwdcbwdj563@wunner.de>
On 8/12/19 1:40 PM, Lukas Wunner wrote:
> On Mon, Aug 12, 2019 at 11:49:23AM -0700, sathyanarayanan kuppuswamy wrote:
>>> On 8/11/19 12:59 PM, Denis Efremov wrote:
>>>> + if ((!PWR_LED(ctrl) || pwr == PWR_NONE) &&
>>>> + (!ATTN_LED(ctrl) || attn == ATTN_NONE))
>>>> + return;
>> Also I think this condition needs to expand to handle the case whether pwr
>> != PWR_NONE and !PWR_LED(ctrl) is true.
>>
>> you need to return for case, pwr = PWR_ON, !PWR_LED(ctrl)=true ,
>> !ATTN_LED(ctrl)=false, attn=on
> Why should we return in that case? We need to update the Attention
> Indicator Control to On.
Attempting to PWR_ON when !PWR_LED(ctrl) is true is incorrect right ?
Even if you don't want to return (to handle ATTN part of the function),
may be you should skip updating PWR mask and cmd for this case.
>
> Thanks,
>
> Lukas
>
--
Sathyanarayanan Kuppuswamy
Linux kernel developer
next prev parent reply other threads:[~2019-08-12 21:07 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-11 19:59 [PATCH v2 0/4] Simplify PCIe hotplug indicator control Denis Efremov
2019-08-11 19:59 ` [PATCH v2 1/4] PCI: pciehp: Add pciehp_set_indicators() to jointly set LED indicators Denis Efremov
2019-08-12 6:30 ` Lukas Wunner
2019-08-12 18:25 ` sathyanarayanan kuppuswamy
2019-08-12 18:49 ` sathyanarayanan kuppuswamy
2019-08-12 20:40 ` Lukas Wunner
2019-08-12 21:03 ` sathyanarayanan kuppuswamy [this message]
2019-08-12 20:03 ` Bjorn Helgaas
2019-08-11 19:59 ` [PATCH v2 2/4] PCI: pciehp: Switch LED indicators with a single write Denis Efremov
2019-08-12 18:27 ` sathyanarayanan kuppuswamy
2019-08-11 19:59 ` [PATCH v2 3/4] PCI: pciehp: Replace pciehp_set_attention_status() Denis Efremov
2019-08-12 6:32 ` Lukas Wunner
2019-08-12 18:28 ` sathyanarayanan kuppuswamy
2019-08-11 19:59 ` [PATCH v2 4/4] PCI: pciehp: Replace pciehp_green_led_{on,off,blink}() Denis Efremov
2019-08-12 18:45 ` sathyanarayanan kuppuswamy
2019-08-12 20:03 ` Bjorn Helgaas
2019-08-12 21:14 ` Denis Efremov
2019-08-12 22:12 ` Bjorn Helgaas
2019-08-12 20:02 ` [PATCH v2 0/4] Simplify PCIe hotplug indicator control Bjorn Helgaas
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