perf script: Assume native_arch for pipe mode

[linux-2.6-microblaze.git] / kernel / cpu.c

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 077fde6..ef1c565 100644 (file)
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1964,6 +1964,9 @@ static ssize_t write_cpuhp_fail(struct device *dev,
        if (ret)
                return ret;
 
+       if (fail < CPUHP_OFFLINE || fail > CPUHP_ONLINE)
+               return -EINVAL;
+
        /*
         * Cannot fail STARTING/DYING callbacks.
         */
@@ -2339,6 +2342,9 @@ static int __init mitigations_parse_cmdline(char *arg)
                cpu_mitigations = CPU_MITIGATIONS_AUTO;
        else if (!strcmp(arg, "auto,nosmt"))
                cpu_mitigations = CPU_MITIGATIONS_AUTO_NOSMT;
+       else
+               pr_crit("Unsupported mitigations=%s, system may still be vulnerable\n",
+                       arg);
 
        return 0;
 }