linux-kernel - Re: [PATCH 1/6] bitmap: fix opencoded bitmap_allocate

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 for Android: free password hash cracker in your pocket

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

Date:   Thu, 27 Jul 2023 13:04:07 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Yury Norov <yury.norov@...il.com>
Cc:     linux-kernel@...r.kernel.org,
        Rasmus Villemoes <linux@...musvillemoes.dk>
Subject: Re: [PATCH 1/6] bitmap: fix opencoded bitmap_allocate_region()

On Wed, Jul 26, 2023 at 07:02:02PM -0700, Yury Norov wrote:
> bitmap_find_region() opencodes bitmap_allocate_region(). Fix it.

...

> +	for (pos = 0 ; (end = pos + (1U << order)) <= bits; pos = end)

In the other patch you use BIT(order), why not here?

> +		if (!bitmap_allocate_region(bitmap, pos, order))
> +			return pos;

-- 
With Best Regards,
Andy Shevchenko