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([222.234.91.137]) by smtp.googlemail.com with ESMTPSA id d2e1a72fcca58-73711550fe1sm8903613b3a.53.2025.03.17.22.47.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Mar 2025 22:47:06 -0700 (PDT) From: JaeJoon Jung To: David Airlie , Jesse Barnes , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Daniel Vetter , Bob Beckett Cc: JaeJoon Jung , linux-kernel@vger.kernel.org Subject: [PATCH] drm_fb_helper: Reduce duplicated execution of the drm_fb_helper_hotplug_event() Date: Tue, 18 Mar 2025 14:46:38 +0900 Message-ID: <20250318054640.249840-1-rgbi3307@gmail.com> X-Mailer: git-send-email 2.43.0 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 Content-Type: text/plain; charset="utf-8" If drm_fb_helper->fb_info is already set, Add an if condition as below to execute the hotplug event only when the system_state is SYSTEM_RUNNING. This will reduce duplicate execution. In particular, It can prevent drm_fb_helper_hotplug_event() from being executed repeatedly at booting time. Signed-off-by: JaeJoon Jung --- drivers/gpu/drm/drm_fb_helper.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helpe= r.c index fb3614a7ba44..c042e5a2e046 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1939,6 +1939,9 @@ int drm_fb_helper_hotplug_event(struct drm_fb_helper = *fb_helper) if (!drm_fbdev_emulation || !fb_helper) return 0; =20 + if (fb_helper->info && system_state !=3D SYSTEM_RUNNING) + return 0; + mutex_lock(&fb_helper->lock); if (fb_helper->deferred_setup) { err =3D __drm_fb_helper_initial_config_and_unlock(fb_helper); --=20 2.43.0