Constify battery check table

OK jcs

diff --git a/sys/dev/acpi/acpisbs.c b/sys/dev/acpi/acpisbs.c
index 7fd8586..159dd79 100644 (file)
--- a/sys/dev/acpi/acpisbs.c
+++ b/sys/dev/acpi/acpisbs.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: acpisbs.c,v 1.10 2020/06/10 22:26:40 jca Exp $ */
+/* $OpenBSD: acpisbs.c,v 1.11 2022/10/26 16:06:42 kn Exp $ */
 /*
  * Smart Battery subsystem device driver
  * ACPI 5.0 spec section 10
@@ -58,7 +58,7 @@
        (SMBUS_READ_##kind == SMBUS_READ_BLOCK ? SMBUS_DATA_SIZE : 2), \
        #val, senst, sens }
 
-struct acpisbs_battery_check {
+const struct acpisbs_battery_check {
        uint8_t mode;
        uint8_t command;
        size_t  offset;
@@ -230,7 +230,8 @@ acpisbs_read(struct acpisbs_softc *sc)
        int i;
 
        for (i = 0; i < nitems(acpisbs_battery_checks); i++) {
-               struct acpisbs_battery_check check = acpisbs_battery_checks[i];
+               const struct acpisbs_battery_check check =
+                   acpisbs_battery_checks[i];
                void *p = (void *)&sc->sc_battery + check.offset;
 
                acpi_smbus_read(sc, check.mode, check.command, check.len, p);
@@ -273,7 +274,8 @@ acpisbs_setup_sensors(struct acpisbs_softc *sc)
            nitems(acpisbs_battery_checks), M_DEVBUF, M_WAITOK | M_ZERO);
 
        for (i = 0; i < nitems(acpisbs_battery_checks); i++) {
-               struct acpisbs_battery_check check = acpisbs_battery_checks[i];
+               const struct acpisbs_battery_check check =
+                   acpisbs_battery_checks[i];
 
                if (check.sensor_type < 0)
                        continue;
@@ -301,7 +303,8 @@ acpisbs_refresh_sensors(struct acpisbs_softc *sc)
        int i;
 
        for (i = 0; i < nitems(acpisbs_battery_checks); i++) {
-               struct acpisbs_battery_check check = acpisbs_battery_checks[i];
+               const struct acpisbs_battery_check check =
+                   acpisbs_battery_checks[i];
                void *p = (void *)&sc->sc_battery + check.offset;
                uint16_t *ival = (uint16_t *)p;