X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=arch%2Fs390%2Fkernel%2Fperf_cpum_sf.c;h=b973972f6ba5cf8e995a01ef7ba869a4e520b5e8;hb=f36fc04e4cdda9e4c72ee504e7dc638f9a168863;hp=afe05bfb7e008a723388ff6c39f2d83d5693ad65;hpb=e965b8ce4215ac2b22b23ffc8a8dfbae964b9496;p=karo-tx-linux.git

diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index afe05bfb7e00..b973972f6ba5 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1019,12 +1019,9 @@ static int perf_push_sample(struct perf_event *event, struct sf_raw_sample *sfr)
 		break;
 	}
 
-	/* The host-program-parameter (hpp) contains the sie control
-	 * block that is set by sie64a() in entry64.S.	Check if hpp
-	 * refers to a valid control block and set sde_regs flags
-	 * accordingly.  This would allow to use hpp values for other
-	 * purposes too.
-	 * For now, simply use a non-zero value as guest indicator.
+	/* The host-program-parameter (hpp) contains the pid of
+	 * the CPU thread as set by sie64a() in entry.S.
+	 * If non-zero assume a guest sample.
 	 */
 	if (sfr->basic.hpp)
 		sde_regs->in_guest = 1;