linux-kernel - [PATCH 6/7] lib: new testcases for bitmap_parse{

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Message-Id: <20200102043031.30357-7-yury.norov@gmail.com>
Date:   Wed,  1 Jan 2020 20:30:30 -0800
From:   Yury Norov <yury.norov@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Amritha Nambiar <amritha.nambiar@...el.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        Matthew Wilcox <willy@...radead.org>,
        "Tobin C . Harding" <tobin@...nel.org>,
        Will Deacon <will.deacon@....com>,
        Miklos Szeredi <mszeredi@...hat.com>,
        Vineet Gupta <vineet.gupta1@...opsys.com>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        linux-kernel@...r.kernel.org
Cc:     Yury Norov <yury.norov@...il.com>, Jens Axboe <axboe@...nel.dk>,
        Steffen Klassert <steffen.klassert@...unet.com>
Subject: [PATCH 6/7] lib: new testcases for bitmap_parse{_user}

>From Yury Norov <yury.norov@...il.com>

New version of bitmap_parse() is unified with bitmap_parse_list(),
and therefore:
 - weakens rules on whitespaces and commas between hex chunks;
 - in addition to \0 allows using \n as the line ending symbol;
 - allows passing UINT_MAX or any other big number as the length
   of input string instead of actual string length.

The patch covers the cases.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Yury Norov <yury.norov@...il.com>
---
 lib/test_bitmap.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c
index 830c9b195e405..fb4ffb88a8160 100644
--- a/lib/test_bitmap.c
+++ b/lib/test_bitmap.c
@@ -415,14 +415,22 @@ static const unsigned long parse_test2[] __initconst = {
 };
 
 static const struct test_bitmap_parselist parse_tests[] __initconst = {
+	{0, "",				&parse_test[0 * step], 32, 0},
+	{0, " ",			&parse_test[0 * step], 32, 0},
 	{0, "0",			&parse_test[0 * step], 32, 0},
+	{0, "0\n",			&parse_test[0 * step], 32, 0},
 	{0, "1",			&parse_test[1 * step], 32, 0},
 	{0, "deadbeef",			&parse_test[2 * step], 32, 0},
 	{0, "1,0",			&parse_test[3 * step], 33, 0},
+	{0, "deadbeef,\n,0,1",		&parse_test[2 * step], 96, 0},
 
 	{0, "deadbeef,1,0",		&parse_test2[0 * 2 * step], 96, 0},
 	{0, "baadf00d,deadbeef,1,0",	&parse_test2[1 * 2 * step], 128, 0},
 	{0, "badf00d,deadbeef,1,0",	&parse_test2[2 * 2 * step], 124, 0},
+	{0, "badf00d,deadbeef,1,0",	&parse_test2[2 * 2 * step], 124, NO_LEN},
+	{0, "  badf00d,deadbeef,1,0  ",	&parse_test2[2 * 2 * step], 124, 0},
+	{0, " , badf00d,deadbeef,1,0 , ",	&parse_test2[2 * 2 * step], 124, 0},
+	{0, " , badf00d, ,, ,,deadbeef,1,0 , ",	&parse_test2[2 * 2 * step], 124, 0},
 
 	{-EINVAL,    "goodfood,deadbeef,1,0",	NULL, 128, 0},
 	{-EOVERFLOW, "3,0",			NULL, 33, 0},
-- 
2.20.1