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From:   Wang Ming <machel@vivo.com>
To:     Mike Rapoport <rppt@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Cc:     opensource.kernel@vivo.com, Wang Ming <machel@vivo.com>
Subject: [PATCH v1] mm:Using div64_ul replaces do_div() function
Date:   Thu, 15 Jun 2023 15:51:14 +0800
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Fix the following coccicheck warning:

mm/mm_init.c:2492:2-8: WARNING: do_div() does a
64-by-32 division, please consider using div64_ul instead.

Signed-off-by: Wang Ming <machel@vivo.com>
---
 mm/mm_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mm_init.c b/mm/mm_init.c
index d39363159..d92de78fb 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -2508,7 +2508,7 @@ void *__init alloc_large_system_hash(const char *tabl=
ename,
        /* limit allocation size to 1/16 total memory by default */
        if (max =3D=3D 0) {
                max =3D ((unsigned long long)nr_all_pages << PAGE_SHIFT) >>=
 4;
-               do_div(max, bucketsize);
+               div64_ul(max, bucketsize);
        }
        max =3D min(max, 0x80000000ULL);

--
2.25.1


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