lib: sbi: pmu: Remove unnecessary probe function

The absence of a probe implementation means that the extension is
always available. Remove the implementation for the PMU extension,
which does no checking, and indeed even has a comment saying it's
always available.

Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

diff --git a/lib/sbi/sbi_ecall_pmu.c b/lib/sbi/sbi_ecall_pmu.c
index b0589d0..1d5d512 100644 (file)
--- a/lib/sbi/sbi_ecall_pmu.c
+++ b/lib/sbi/sbi_ecall_pmu.c
@@ -81,13 +81,6 @@ static int sbi_ecall_pmu_handler(unsigned long extid, unsigned long funcid,
        return ret;
 }
 
-static int sbi_ecall_pmu_probe(unsigned long extid, unsigned long *out_val)
-{
-       /* PMU extension is always enabled */
-       *out_val = 1;
-       return 0;
-}
-
 struct sbi_ecall_extension ecall_pmu;
 
 static int sbi_ecall_pmu_register_extensions(void)
@@ -99,6 +92,5 @@ struct sbi_ecall_extension ecall_pmu = {
        .extid_start            = SBI_EXT_PMU,
        .extid_end              = SBI_EXT_PMU,
        .register_extensions    = sbi_ecall_pmu_register_extensions,
-       .probe                  = sbi_ecall_pmu_probe,
        .handle                 = sbi_ecall_pmu_handler,
 };