git: 4dd720279f86 - stable/14 - asmc: Convert driver to CTLFLAG_MPSAFE

The branch stable/14 has been updated by ngie:

URL: https://cgit.FreeBSD.org/src/commit/?id=4dd720279f867c73c5ddbfbad926f4be1b5f1299

commit 4dd720279f867c73c5ddbfbad926f4be1b5f1299
Author:     Abdelkader Boudih <freebsd@seuros.com>
AuthorDate: 2026-02-13 03:00:22 +0000
Commit:     Enji Cooper <ngie@FreeBSD.org>
CommitDate: 2026-04-25 16:29:59 +0000

    asmc: Convert driver to CTLFLAG_MPSAFE
    
    Replace CTLFLAG_NEEDGIANT with CTLFLAG_MPSAFE for all sysctls.
    The driver already uses spin mutexes (sc->sc_mtx) for hardware
    access protection and does not require the Giant lock.
    
    This improves scalability by allowing concurrent sysctl access
    without Giant serialization.
    
    Reviewed by:    ngie, adrian
    Differential Revision:  https://reviews.freebsd.org/D54613
    
    (cherry picked from commit 1a6bdd6266e3b53c8b6b597a77a100353b7ae13a)
---
 sys/dev/asmc/asmc.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/sys/dev/asmc/asmc.c b/sys/dev/asmc/asmc.c
index 5620c8c42d89..494cb7d75593 100644
--- a/sys/dev/asmc/asmc.c
+++ b/sys/dev/asmc/asmc.c
@@ -699,49 +699,49 @@ asmc_attach(device_t dev)
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
 		    OID_AUTO, "id",
-		    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
 		    dev, j, model->smc_fan_id, "I",
 		    "Fan ID");
 
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
 		    OID_AUTO, "speed",
-		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
 		    dev, j, model->smc_fan_speed, "I",
 		    "Fan speed in RPM");
 
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
 		    OID_AUTO, "safespeed",
-		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
 		    dev, j, model->smc_fan_safespeed, "I",
 		    "Fan safe speed in RPM");
 
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
 		    OID_AUTO, "minspeed",
-		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
 		    dev, j, model->smc_fan_minspeed, "I",
 		    "Fan minimum speed in RPM");
 
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
 		    OID_AUTO, "maxspeed",
-		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
 		    dev, j, model->smc_fan_maxspeed, "I",
 		    "Fan maximum speed in RPM");
 
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
 		    OID_AUTO, "targetspeed",
-		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
 		    dev, j, model->smc_fan_targetspeed, "I",
 		    "Fan target speed in RPM");
 
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
 		    OID_AUTO, "manual",
-		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
 		    dev, j, asmc_mb_sysctl_fanmanual, "I",
 		    "Fan manual mode (0=auto, 1=manual)");
 	}
@@ -757,7 +757,7 @@ asmc_attach(device_t dev)
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_temp_tree),
 		    OID_AUTO, model->smc_tempnames[i],
-		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
 		    dev, i, asmc_temp_sysctl, "I",
 		    model->smc_tempdescs[i]);
 	}
@@ -774,14 +774,14 @@ asmc_attach(device_t dev)
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_light_tree),
 		    OID_AUTO, "left",
-		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
 		    dev, 0, model->smc_light_left, "I",
 		    "Keyboard backlight left sensor");
 
 		SYSCTL_ADD_PROC(sysctlctx,
 		    SYSCTL_CHILDREN(sc->sc_light_tree),
 		    OID_AUTO, "right",
-		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
+		    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
 		    dev, 0, model->smc_light_right, "I",
 		    "Keyboard backlight right sensor");
 
@@ -789,7 +789,7 @@ asmc_attach(device_t dev)
 		    SYSCTL_CHILDREN(sc->sc_light_tree),
 		    OID_AUTO, "control",
 		    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY |
-		    CTLFLAG_NEEDGIANT, dev, 0,
+		    CTLFLAG_MPSAFE, dev, 0,
 		    model->smc_light_control, "I",
 		    "Keyboard backlight brightness control");
 	}
@@ -807,21 +807,21 @@ asmc_attach(device_t dev)
 	SYSCTL_ADD_PROC(sysctlctx,
 	    SYSCTL_CHILDREN(sc->sc_sms_tree),
 	    OID_AUTO, "x",
-	    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
+	    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
 	    dev, 0, model->smc_sms_x, "I",
 	    "Sudden Motion Sensor X value");
 
 	SYSCTL_ADD_PROC(sysctlctx,
 	    SYSCTL_CHILDREN(sc->sc_sms_tree),
 	    OID_AUTO, "y",
-	    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
+	    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
 	    dev, 0, model->smc_sms_y, "I",
 	    "Sudden Motion Sensor Y value");
 
 	SYSCTL_ADD_PROC(sysctlctx,
 	    SYSCTL_CHILDREN(sc->sc_sms_tree),
 	    OID_AUTO, "z",
-	    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
+	    CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
 	    dev, 0, model->smc_sms_z, "I",
 	    "Sudden Motion Sensor Z value");