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Mon, 02 Mar 2026 11:34:30 -0800 (PST) From: Alexey Suchkov X-Google-Original-From: Alexey Suchkov To: aleks.koyf@gmail.com Cc: akpm@linux-foundation.org, dywoq.contact@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH] [PATCH v2] mm: initialize 'seq' in gup_fast to remove -Wmaybe-uninitialized warning Date: Mon, 2 Mar 2026 22:34:05 +0300 Message-ID: <20260302193405.37961-1-dywoq.contact@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260302191237.34375-1-dywoq.contact@gmail.com> References: <20260302191237.34375-1-dywoq.contact@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The local variable 'seq' in gup_fast (mm/gup.c) was declared without initialization, which can trigger: mm/gup.c:3165:20: warning: =E2=80=98seq=E2=80=99 may be used uninitialized = [-Wmaybe-uninitialized] Initialize 'seq' to 0. This does not change behavior, since read_seqcount_retry() always writes to it before use. Changes since v1: - Removes the accidental formatting from v1. Signed-off-by: Alexey Suchkov --- mm/gup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/gup.c b/mm/gup.c index 8e7dc2c6e..879798de5 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -3131,7 +3131,7 @@ static unsigned long gup_fast(unsigned long start, un= signed long end, { unsigned long flags; int nr_pinned =3D 0; - unsigned seq; + unsigned int seq =3D 0; =20 if (!IS_ENABLED(CONFIG_HAVE_GUP_FAST) || !gup_fast_permitted(start, end)) --=20 2.53.0