From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
        Ulf Hansson <ulf.hansson@linaro.org>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 219/355] memstick: avoid out-of-range warning
Date:   Mon, 15 Nov 2021 18:02:23 +0100
Message-Id: <20211115165320.846950794@linuxfoundation.org>
In-Reply-To: <20211115165313.549179499@linuxfoundation.org>
References: <20211115165313.549179499@linuxfoundation.org>
User-Agent: quilt/0.66
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 4853396f03c3019eccf5cd113e464231e9ddf0b3 ]

clang-14 complains about a sanity check that always passes when the
page size is 64KB or larger:

drivers/memstick/core/ms_block.c:1739:21: error: result of comparison of constant 65536 with expression of type 'unsigned short' is always false [-Werror,-Wtautological-constant-out-of-range-compare]
        if (msb->page_size > PAGE_SIZE) {
            ~~~~~~~~~~~~~~ ^ ~~~~~~~~~

This is fine, it will still work on all architectures, so just shut
up that warning with a cast.

Fixes: 0ab30494bc4f ("memstick: add support for legacy memorysticks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210927094520.696665-1-arnd@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/memstick/core/ms_block.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
index d9ee8e3dc72da..55907e4c36b18 100644
--- a/drivers/memstick/core/ms_block.c
+++ b/drivers/memstick/core/ms_block.c
@@ -1727,7 +1727,7 @@ static int msb_init_card(struct memstick_dev *card)
 	msb->pages_in_block = boot_block->attr.block_size * 2;
 	msb->block_size = msb->page_size * msb->pages_in_block;
 
-	if (msb->page_size > PAGE_SIZE) {
+	if ((size_t)msb->page_size > PAGE_SIZE) {
 		/* this isn't supported by linux at all, anyway*/
 		dbg("device page %d size isn't supported", msb->page_size);
 		return -EINVAL;
-- 
2.33.0