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Mon, 23 Mar 2026 07:32:28 +0000 (GMT) From: Venkat Rao Bagalkote To: arnd@arndb.de, gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, nathan@kernel.org, nsc@kernel.org, ojeda@kernel.org, masahiroy@kernel.org, linux@weissschuh.net, tamird@kernel.org, rostedt@goodmis.org, ihor.solodrai@linux.dev, ritesh.list@gmail.com, maddy@linux.ibm.com, peterz@infradead.org, venkat88@linux.ibm.com Subject: [PATCH v2] char: nvram: Remove unused nvram_mutex to fix -Wunused-variable warning Date: Mon, 23 Mar 2026 13:02:20 +0530 Message-ID: <20260323073220.25798-1-venkat88@linux.ibm.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: Hi2CISShH6Iof_oH2JKOO9ktaPYasrmG X-Proofpoint-ORIG-GUID: FbRJ3Hh_YJSdw1yG-6PJ7kD244G9CCmD X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzIzMDA1NCBTYWx0ZWRfX4tUm5R23TsI3 kwNO6SpVXON7P1fnxwk/co3t7UJbBNXIv/5TGh1eSUP6qV9ZvmeMSuG9JJd5ySz+iYyMX6H5VBp +5suiYCNsozogEBQES6dxrNweNcQU6DUD0uBYOvTUpuTqlH57HtTSBUvQxiijmnaihad5819/HB UX3FVo/M/a3FHprIqxgZCA21K4nMrVa8m/6xnPJV8jOwz6mLlnboGUnL6oFu9RTLwtCn+zYHKlg AupZBFCkEz8LV00+a5spVIKP+LRrT6YRFC+RnXaAg8SNlXVuO14OJ4RJiUaPj0L5OZGUMLWtV9l nLDyeGErpzkeBUo7exo/pJUn93144I8NEs6hMmk1bekiLxJAboJNZ0nBLrItkvD0M0+nyAQpsIr okAUO6XxcpSvZFTtlWRBAatiwiutfCT770bJKPRI4efYuukXJ3Ctv1WLYSvvco3isbbqaNTUFxm uFy+/MIkDqPd37p3BQg== X-Authority-Analysis: v=2.4 cv=KbXfcAYD c=1 sm=1 tr=0 ts=69c0ec9d cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=pGLkceISAAAA:8 a=VnNF1IyMAAAA:8 a=HSj1x6wVMASIhtUHg4AA:9 a=zZCYzV9kfG8A:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-23_02,2026-03-20_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 impostorscore=0 malwarescore=0 adultscore=0 clxscore=1015 priorityscore=1501 bulkscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603230054 Content-Type: text/plain; charset="utf-8" v2: - Added missing Suggested-by tag from Ritesh Harjani (IBM) drivers/char/nvram.c defines a static mutex 'nvram_mutex' which is never used. This results in a compiler warning on linux-next builds: warning: 'nvram_mutex' defined but not used [-Wunused-variable] Remove the unused definition to avoid the warning. Suggested-by: Ritesh Harjani (IBM) Signed-off-by: Venkat Rao Bagalkote --- drivers/char/nvram.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c index 9eff426a9286..2ce3307663ed 100644 --- a/drivers/char/nvram.c +++ b/drivers/char/nvram.c @@ -53,7 +53,7 @@ #include #endif =20 -static DEFINE_MUTEX(nvram_mutex); +static __maybe_unused DEFINE_MUTEX(nvram_mutex); static DEFINE_SPINLOCK(nvram_state_lock); static int nvram_open_cnt; /* #times opened */ static int nvram_open_mode; /* special open modes */ --=20 2.45.2