From: Wu Bo <wubo40@huawei.com>
To: <viro@zeniv.linux.org.uk>, <herbert@gondor.apana.org.au>,
<davem@davemloft.net>, <linux-fsdevel@vger.kernel.org>,
<linux-crypto@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <linfeilong@huawei.com>, <wubo40@huawei.com>
Subject: [PATCH 1/2] crypto: af_alg - use DIV_ROUND_UP helper macro for calculations
Date: Tue, 25 May 2021 16:15:19 +0800 [thread overview]
Message-ID: <1621930520-515336-2-git-send-email-wubo40@huawei.com> (raw)
In-Reply-To: <1621930520-515336-1-git-send-email-wubo40@huawei.com>
From: Wu Bo <wubo40@huawei.com>
Replace open coded divisor calculations with the DIV_ROUND_UP kernel
macro for better readability.
Signed-off-by: Wu Bo <wubo40@huawei.com>
---
crypto/af_alg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 18cc82d..8bd288d 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -411,7 +411,7 @@ int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len)
if (n < 0)
return n;
- npages = (off + n + PAGE_SIZE - 1) >> PAGE_SHIFT;
+ npages = DIV_ROUND_UP(off + n, PAGE_SIZE);
if (WARN_ON(npages == 0))
return -EINVAL;
/* Add one extra for linking */
--
1.8.3.1
next prev parent reply other threads:[~2021-05-25 8:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-25 8:15 [PATCH 0/2] use DIV_ROUND_UP helper macro for calculations Wu Bo
2021-05-25 8:15 ` Wu Bo [this message]
2021-05-25 8:37 ` [PATCH 1/2] crypto: af_alg - " Christophe Leroy
2021-05-26 8:31 ` Dave Chinner
2021-06-03 12:30 ` Herbert Xu
2021-05-25 8:15 ` [PATCH 2/2] fs: direct-io: " Wu Bo
2021-05-25 8:38 ` Christophe Leroy
2021-05-25 8:41 ` [PATCH 0/2] " Christophe Leroy
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