linux-kernel - Re: [RFC v2 09/20] PCI/CMA: Expose in sysfs whether devices are authenticated

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Message-ID: <CANiq72n4UFUraYeHa6ar3=F61C_UxEJ1rq92aOF_hH9rtjN+Dg@mail.gmail.com>
Date: Thu, 27 Feb 2025 17:47:01 +0100
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Greg KH <gregkh@...uxfoundation.org>
Cc: Alice Ryhl <aliceryhl@...gle.com>, Alistair Francis <alistair@...stair23.me>, 
	linux-cxl@...r.kernel.org, linux-kernel@...r.kernel.org, lukas@...ner.de, 
	linux-pci@...r.kernel.org, bhelgaas@...gle.com, Jonathan.Cameron@...wei.com, 
	rust-for-linux@...r.kernel.org, akpm@...ux-foundation.org, 
	boqun.feng@...il.com, bjorn3_gh@...tonmail.com, wilfred.mallawa@....com, 
	ojeda@...nel.org, alistair23@...il.com, a.hindborg@...nel.org, 
	tmgross@...ch.edu, gary@...yguo.net, alex.gaynor@...il.com, 
	benno.lossin@...ton.me, Alistair Francis <alistair.francis@....com>, 
	Emilio Cobos Álvarez <emilio@...sal.io>
Subject: Re: [RFC v2 09/20] PCI/CMA: Expose in sysfs whether devices are authenticated

On Thu, Feb 27, 2025 at 3:04 PM Greg KH <gregkh@...uxfoundation.org> wrote:
>
> As this seems like it's going to be a longer-term issue, has anyone
> thought of how it's going to be handled?  Build time errors when
> functions change is the key here, no one remembers to manually verify
> each caller to verify the variables are correct anymore, that would be a
> big step backwards.

I can look into it, after other build system things are done.

I talked to Emilio some months ago about this and he told me Firefox
solves the problem both ways, so we may be able to do something
similar.

Cheers,
Miguel