netdev - Re: [PATCH net-next v3 1/3] posix-clock: Store file pointer in struct posix_clock

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Message-ID: <87frkcjp63.ffs@tglx>
Date: Mon, 17 Feb 2025 21:23:48 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: Wojtek Wasko <wwasko@...dia.com>, netdev@...r.kernel.org
Cc: richardcochran@...il.com, vadim.fedorenko@...ux.dev, kuba@...nel.org,
 horms@...nel.org, anna-maria@...utronix.de, frederic@...nel.org,
 pabeni@...hat.com
Subject: Re: [PATCH net-next v3 1/3] posix-clock: Store file pointer in
 struct posix_clock_context

On Mon, Feb 17 2025 at 11:50, Wojtek Wasko wrote:

> File descriptor based pc_clock_*() operations of dynamic posix clocks
> have access to the file pointer and implement permission checks in the
> generic code before invoking the relevant dynamic clock callback.
>
> Character device operations (open, read, poll, ioctl) do not implement a
> generic permission control and the dynamic clock callbacks have no
> access to the file pointer to implement them.
>
> Extend struct posix_clock_context with a struct file pointer and
> initialize it in posix_clock_open(), so that all dynamic clock callbacks
> can access it.
>
> Signed-off-by: Wojtek Wasko <wwasko@...dia.com>

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>