git: b7fe00faea88 - main - powerpc pmu: Quiet set but unused warnings.

The branch main has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=b7fe00faea88999f99b29af30c11755c4c2fad7f

commit b7fe00faea88999f99b29af30c11755c4c2fad7f
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2022-04-12 21:58:58 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2022-04-12 21:58:58 +0000

    powerpc pmu: Quiet set but unused warnings.
    
    - Remove unused variables.
    
    - Replace a dummy variable with a void cast.
---
 sys/powerpc/powermac/pmu.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/sys/powerpc/powermac/pmu.c b/sys/powerpc/powermac/pmu.c
index ae01b9251b11..642206fd4f78 100644
--- a/sys/powerpc/powermac/pmu.c
+++ b/sys/powerpc/powermac/pmu.c
@@ -577,9 +577,8 @@ pmu_send_byte(struct pmu_softc *sc, uint8_t data)
 static inline int
 pmu_read_byte(struct pmu_softc *sc, uint8_t *data)
 {
-	volatile uint8_t scratch;
 	pmu_in(sc);
-	scratch = pmu_read_reg(sc, vSR);
+	(void)pmu_read_reg(sc, vSR);
 	pmu_ack_off(sc);
 	/* wait for intr to come up */
 	do {} while (pmu_intr_state(sc) == 0);
@@ -764,7 +763,7 @@ pmu_adb_send(device_t dev, u_char command_byte, int len, u_char *data,
     u_char poll)
 {
 	struct pmu_softc *sc = device_get_softc(dev);
-	int i,replen;
+	int i;
 	uint8_t packet[16], resp[16];
 
 	/* construct an ADB command packet and send it */
@@ -777,7 +776,7 @@ pmu_adb_send(device_t dev, u_char command_byte, int len, u_char *data,
 		packet[i + 3] = data[i];
 
 	mtx_lock(&sc->sc_mutex);
-	replen = pmu_send(sc, PMU_ADB_CMD, len + 3, packet, 16, resp);
+	pmu_send(sc, PMU_ADB_CMD, len + 3, packet, 16, resp);
 	mtx_unlock(&sc->sc_mutex);
 
 	if (poll)
@@ -988,10 +987,8 @@ pmu_battquery_proc(void)
 static int
 pmu_battmon(SYSCTL_HANDLER_ARGS)
 {
-	struct pmu_softc *sc;
 	int error, result;
 
-	sc = arg1;
 	result = pmu_battmon_enabled;
 
 	error = sysctl_handle_int(oidp, &result, 0, req);