linux-kernel - Re: [PATCH v3] ima: silence measurement list hexdump during kexec

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Date:   Mon, 27 Dec 2021 10:54:12 -0500
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Bruno Meneguele <bmeneg@...hat.com>
Cc:     linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] ima: silence measurement list hexdump during kexec

On Mon, 2021-12-27 at 11:52 -0300, Bruno Meneguele wrote:
> The measurement list is being dumped during soft resets (kexec) through the
> call to print_hex_dump(KERN_DEBUG, ...) without considering the DEBUG
> compilation flag. With that, to avoid dumping this information to the system
> log whenever a soft reset happens during boot process, since the default
> console loglevel is generally set to 7 (debug) during boot, guard the call
> to print_hex_dump() with #ifdef for the DEBUG cflag.

The patch description needs to be rewritten/simplified.  If the only
problem is that "the console loglevel is generally set to 7 (debug)",
why not begin with the patch description with that?

Other things to consider including in the patch description:
- any side effects of the change (e.g. ability to dynamically enable
output)?

thanks,

Mimi