linux-kernel - Re: [PATCH 3/3] binder: defer copies of pre-patched txn data

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

Message-ID: <20211124124313.GH6514@kadam>
Date:   Wed, 24 Nov 2021 15:43:13 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Todd Kjos <tkjos@...gle.com>
Cc:     gregkh@...uxfoundation.org, christian@...uner.io, arve@...roid.com,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        maco@...gle.com, joel@...lfernandes.org, kernel-team@...roid.com
Subject: Re: [PATCH 3/3] binder: defer copies of pre-patched txn data

On Tue, Nov 23, 2021 at 11:17:37AM -0800, Todd Kjos wrote:
> +static int binder_do_deferred_txn_copies(struct binder_alloc *alloc,
> +					 struct binder_buffer *buffer,
> +					 struct list_head *sgc_head,
> +					 struct list_head *pf_head)
> +{
> +	int ret = 0;
> +	struct list_head *entry, *tmp;
> +	struct binder_ptr_fixup *pf =
> +		list_first_entry_or_null(pf_head, struct binder_ptr_fixup,
> +					 node);
> +
> +	list_for_each_safe(entry, tmp, sgc_head) {
        ^^^^^^^^^^^^^^^^^^^
All the list_for_each() loops can be changed to list_for_each_entry().


	list_for_each_entry_safe(sgc, tmp, sgc_head, node) {

regards,
dan carpenter



> +		size_t bytes_copied = 0;
> +		struct binder_sg_copy *sgc =
> +			container_of(entry, struct binder_sg_copy, node);
> +