linux-kernel - Re: [PATCH] scsi: fnic: Use kmalloc instead of vmalloc for a small memory allocation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Fri, 24 Apr 2020 16:50:17 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Christophe Jaillet <christophe.jaillet@...adoo.fr>,
        linux-scsi@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        Dan Carpenter <dan.carpenter@...cle.com>,
        "James E. J. Bottomley" <jejb@...ux.ibm.com>,
        Karan Tilak Kumar <kartilak@...co.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Satish Kharat <satishkh@...co.com>,
        Sesidhar Baddela <sebaddel@...co.com>
Subject: Re: [PATCH] scsi: fnic: Use kmalloc instead of vmalloc for a small
 memory allocation

> 'struct fc_trace_flag_type' is just a few bytes long. There is no need
> to allocate such a structure with vmalloc. Using kmalloc instead.

Can such an adjustment be relevant for the specification of the tag “Fixes”?


> While at it, axe a useless test when freeing the memory.

I find it more appropriate to provide this source code improvement
by a separate update step.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?id=b4f633221f0aeac102e463a4be46a643b2e3b819#n138

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/scripts/coccinelle/free/ifnullfree.cocci?id=b4f633221f0aeac102e463a4be46a643b2e3b819#n4

Regards,
Markus