Re: [PATCH v7 01/12] firmware: qcom: add a dedicated TrustZone buffer allocator

[Bartosz Golaszewski]

On Sun, Feb 18, 2024 at 4:22 AM Bjorn Andersson <andersson@xxxxxxxxxx> wrote:
>
> On Mon, Feb 05, 2024 at 07:27:59PM +0100, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> [..]
> > diff --git a/drivers/firmware/qcom/qcom_tzmem.c b/drivers/firmware/qcom/qcom_tzmem.c
> > new file mode 100644
> > index 000000000000..44a062f2abd4
> > --- /dev/null
> > +++ b/drivers/firmware/qcom/qcom_tzmem.c
> > @@ -0,0 +1,302 @@
> > +// SPDX-License-Identifier: GPL-2.0-or-later
>
> Could you please confirm that "-or-later" is intended?
>

No, it's not, should have been GPL-2.0-only.

> > +/*
> > + * Memory allocator for buffers shared with the TrustZone.
> > + *
> > + * Copyright (C) 2023 Linaro Ltd.
> > + */
> [..]
> > +/**
> > + * qcom_tzmem_pool_new() - Create a new TZ memory pool.
> > + * @size: Size of the new pool in bytes.
> > + *
> > + * Create a new pool of memory suitable for sharing with the TrustZone.
> > + *
> > + * Must not be used in atomic context.
>
>  * Context: Describes whether the function can sleep, what locks it takes,
>  *          releases, or expects to be held. It can extend over multiple
>  *          lines.
>
> > + *
> > + * Returns:
> > + * New memory pool address or ERR_PTR() on error.
>
>  * Return: Describe the return value of function_name.
>
> both from:
> https://docs.kernel.org/doc-guide/kernel-doc.html#function-documentation
>

I can change it but "Returns:" works too.

Bart

> Regards,
> Bjorn