linux-kernel - [PATCH 0/2] lib: Fix bitmap_cut() for overlaps, add test

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Date:   Sun, 14 Jun 2020 19:40:52 +0200
From:   Stefano Brivio <sbrivio@...hat.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Yury Norov <yury.norov@...il.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] lib: Fix bitmap_cut() for overlaps, add test

Patch 1/2 addresses the issue Yury reported with partially overlapping
src and dst in bitmap_cut(), and 2/2 adds a test that covers basic
functionality as well as this case.

v2: In 2/2, use macro to verify result, drop bogus Co-Authored-by:
    tag, both suggested by Andy Shevchenko, and avoid stack overflow

Stefano Brivio (2):
  bitmap: Fix bitmap_cut() for partial overlapping case
  bitmap: Add test for bitmap_cut()

 lib/bitmap.c      |  4 ++--
 lib/test_bitmap.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+), 2 deletions(-)

-- 
2.27.0