From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
To: ivanhu <ivan.hu-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Cc: linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Ard Biesheuvel
<ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH 1/3] efi/efi_test: use memdup_user() as a cleanup
Date: Tue, 4 Oct 2016 22:37:43 +0100 [thread overview]
Message-ID: <20161004213743.GV16071@codeblueprint.co.uk> (raw)
In-Reply-To: <3fb6d9fa-b554-509b-fc59-d75340017589-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
On Tue, 04 Oct, at 11:04:56AM, ivanhu wrote:
> Hi Matt,
>
> The warning message is from Kbuild test robot,
>
> https://chromium.googlesource.com/linux-fpga-chameleon/+/fpga-chameleon-4.2/scripts/coccinelle/api/memdup_user.cocci,
>
>
> and I believe it tries to persuade us to use memdup_user instead of kmalloc
> and copy_form_user,
>
> With this new function, we don't have to write 'len' twice, which can lead
> to typos/mistakes.
> It also produces smaller code and kernel text.
>
> http://lkml.iu.edu/hypermail/linux/kernel/0903.0/02349.html
Right, I understand all that. My question was specifically about the
following sentence from your patch,
> This is a little bit restricted to reduce false positives
What restriction that reduces false positives are you referring to?
next prev parent reply other threads:[~2016-10-04 21:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-26 3:14 [PATCH 0/3] efi_test: fix Coccinelle warning and CoverityScan issues Ivan Hu
[not found] ` <1474859691-8574-1-git-send-email-ivan.hu-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2016-09-26 3:14 ` [PATCH 1/3] efi/efi_test: use memdup_user() as a cleanup Ivan Hu
[not found] ` <1474859691-8574-2-git-send-email-ivan.hu-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2016-10-03 20:17 ` Matt Fleming
[not found] ` <20161003201718.GL16071-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-10-04 3:04 ` ivanhu
[not found] ` <3fb6d9fa-b554-509b-fc59-d75340017589-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2016-10-04 21:37 ` Matt Fleming [this message]
[not found] ` <20161004213743.GV16071-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-10-05 1:31 ` ivanhu
2016-09-26 3:14 ` [PATCH 2/3] efi/efi_test: fix the uninitialized value datasize Ivan Hu
[not found] ` <1474859691-8574-3-git-send-email-ivan.hu-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2016-10-03 20:23 ` Matt Fleming
2016-09-26 3:14 ` [PATCH 3/3] efi/efi_test: fix the uninitialized value rv Ivan Hu
[not found] ` <1474859691-8574-4-git-send-email-ivan.hu-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2016-10-03 20:25 ` Matt Fleming
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20161004213743.GV16071@codeblueprint.co.uk \
--to=matt-mf/unelci9gs6ibeejttw/xrex20p6io@public.gmane.org \
--cc=ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org \
--cc=ivan.hu-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org \
--cc=linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.