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From: "Krzysztof Wilczyński" <kw@linux.com>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
	Rob Herring <robh+dt@kernel.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Marc Zyngier <maz@kernel.org>,
	linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Lokesh Vutla <lokeshvutla@ti.com>
Subject: Re: [PATCH 5/6] PCI: keystone: Add PCI legacy interrupt support for AM654
Date: Fri, 26 Mar 2021 08:14:02 +0100	[thread overview]
Message-ID: <YF2Jugi4SE+yKMQa@rocinante> (raw)
In-Reply-To: <20210325090026.8843-6-kishon@ti.com>

Hi Kishon,

[...]
> +	if (!legacy_irq_domain) {
> +		dev_err(dev, "Failed to add irq domain for legacy irqs\n");
> +		return -EINVAL;
> +	}
[...]

It would be "IRQ" and "IRQs" in the message above.

[...]
> -	ret = ks_pcie_config_legacy_irq(ks_pcie);
> -	if (ret)
> -		return ret;
> +	if (!ks_pcie->is_am6) {
> +		pp->bridge->child_ops = &ks_child_pcie_ops;
> +		ret = ks_pcie_config_legacy_irq(ks_pcie);
> +		if (ret)
> +			return ret;
> +	} else {
> +		ret = ks_pcie_am654_config_legacy_irq(ks_pcie);
> +		if (ret)
> +			return ret;
> +	}
[...]

What if we change this to the following:

	if (!ks_pcie->is_am6) {
		pp->bridge->child_ops = &ks_child_pcie_ops;
		ret = ks_pcie_config_legacy_irq(ks_pcie);
	} else {
		ret = ks_pcie_am654_config_legacy_irq(ks_pcie);
	}
	
	if (ret)
	  	return ret;

Not sure if this is something you would prefer, but it seems that either
of the functions can set "ret", so checking immediately after would be
the same as checking in either of the branches.  But, this is a matter
of style, so it would be up to you - not sure what do you prefer.

Krzysztof

  reply	other threads:[~2021-03-26  7:15 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-25  9:00 [PATCH 0/6] PCI: Add legacy interrupt support in Keystone Kishon Vijay Abraham I
2021-03-25  9:00 ` [PATCH 1/6] dt-bindings: PCI: ti,am65: Add PCIe host mode dt-bindings for TI's AM65 SoC Kishon Vijay Abraham I
2021-03-25 16:56   ` [PATCH 1/6] dt-bindings: PCI: ti, am65: " Rob Herring
2021-03-25 23:38   ` [PATCH 1/6] dt-bindings: PCI: ti,am65: " Rob Herring
2021-03-30  9:29     ` Kishon Vijay Abraham I
2021-04-20 13:13       ` Rob Herring
2021-03-25  9:00 ` [PATCH 2/6] dt-bindings: PCI: ti,am65: Add PCIe endpoint " Kishon Vijay Abraham I
2021-03-25 16:56   ` [PATCH 2/6] dt-bindings: PCI: ti, am65: " Rob Herring
2021-03-25  9:00 ` [PATCH 3/6] irqdomain: Export of_phandle_args_to_fwspec() Kishon Vijay Abraham I
2021-03-25  9:00 ` [PATCH 4/6] PCI: keystone: Convert to using hierarchy domain for legacy interrupts Kishon Vijay Abraham I
2021-03-26  6:58   ` Krzysztof Wilczyński
2021-03-25  9:00 ` [PATCH 5/6] PCI: keystone: Add PCI legacy interrupt support for AM654 Kishon Vijay Abraham I
2021-03-26  7:14   ` Krzysztof Wilczyński [this message]
2021-04-02 11:11   ` Marc Zyngier
2021-03-25  9:00 ` [PATCH 6/6] PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0) Kishon Vijay Abraham I
2021-03-26  7:19   ` Krzysztof Wilczyński
2021-05-17 13:15 ` [PATCH 0/6] PCI: Add legacy interrupt support in Keystone Christian Gmeiner
2021-05-17 13:21   ` Kishon Vijay Abraham I

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