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[88.207.40.227]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a80f411b506sm101763166b.136.2024.08.13.15.03.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Aug 2024 15:03:51 -0700 (PDT) From: Mirsad Todorovac X-Google-Original-From: Mirsad Todorovac Message-ID: Date: Wed, 14 Aug 2024 00:03:34 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: linux-mm@kvack.org Cc: Andrew Morton , linux-kernel@vger.kernel.org, Saurabh Sengar Subject: =?UTF-8?B?W1BST0JMRU1dIG1tL3Ztc3RhdC5jOjM0OjEyOiBlcnJvcjog4oCYdm1z?= =?UTF-8?Q?tat=5Flate=5Finit=5Fdone=E2=80=99_defined_but_not_used_=5B-Werror?= =?UTF-8?Q?=3Dunused-variable=5D?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hi, all, Now, the "randconfig" seed KCONFIG_SEED=3D0x44AB31A6 revealed another bug: mm/vmstat.c:34:12: error: =E2=80=98vmstat_late_init_done=E2=80=99 defined b= ut not used [-Werror=3Dunused-variable] 34 | static int vmstat_late_init_done; | ^~~~~~~~~~~~~~~~~~~~~ Apparently, it is obviously wrong because it is used below: Fixes: ef534a0d51984 ("mm/vmstat: defer the refresh_zone_stat_thresholds af= ter all CPUs bringu") #ifdef .. #endif forest might be better documented, but this small fix make= s it running again: -----------------------------------------------------><--------------------= -------------- diff --git a/mm/vmstat.c b/mm/vmstat.c index e361c2b3a8bc..85b3fc0084a8 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -31,7 +31,10 @@ #include "internal.h" +#ifdef CONFIG_SMP static int vmstat_late_init_done; +#endif /* CONFIG_SMP */ + #ifdef CONFIG_NUMA int sysctl_vm_numa_stat =3D ENABLE_NUMA_STAT; -- It eliminates -Werror=3Dunused-variable and compile passes at least: CC kernel/sys.o CC mm/vmstat.o AR init/built-in.a Hope thi s helps. Best regards, Mirsad Todorovac