linux-kernel - Re: [PATCH v3 3/9] PCI: endpoint: Rename BME to Bus Master Enable

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Date: Thu, 18 Apr 2024 16:49:04 +0200
From: Niklas Cassel <cassel@...nel.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Jingoo Han <jingoohan1@...il.com>, linux-pci@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	mhi@...ts.linux.dev, linux-tegra@...r.kernel.org,
	Damien Le Moal <dlemoal@...nel.org>
Subject: Re: [PATCH v3 3/9] PCI: endpoint: Rename BME to Bus Master Enable

On Thu, Apr 18, 2024 at 05:28:31PM +0530, Manivannan Sadhasivam wrote:
> BME which stands for 'Bus Master Enable' is not defined in the PCIe base
> spec even though it is commonly referred in many places (vendor docs). But
> to align with the spec, let's rename it to its expansion 'Bus Master
> Enable'.
> 
> Suggested-by: Damien Le Moal <dlemoal@...nel.org>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> ---

Reviewed-by: Niklas Cassel <cassel@...nel.org>


Outside the scope of this patch/series:
Do we perhaps want to add a bus_master_enable() callback also for the
pci-epf-test driver?

In my opinion, the test driver should be "the driver" that tests that
all the EPF features/callbacks work, at least a basic test "does it
work at all". Other EPF drivers can implement the callbacks, and do
more intelligent things, i.e. more than just seeing that "it works".


Kind regards,
Niklas