linux-kernel - [PATCH -next 004/491] PERFORMANCE EVENTS SUBSYSTEM: Use fallthrough;

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Date:   Tue, 10 Mar 2020 21:51:18 -0700
From:   Joe Perches <joe@...ches.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org
Subject: [PATCH -next 004/491] PERFORMANCE EVENTS SUBSYSTEM: Use fallthrough;

Convert the various uses of fallthrough comments to fallthrough;

Done via script
Link: https://lore.kernel.org/lkml/b56602fcf79f849e733e7b521bb0e17895d390fa.1582230379.git.joe.com/

Signed-off-by: Joe Perches <joe@...ches.com>
---
 arch/mips/kernel/perf_event_mipsxx.c | 6 +++---
 arch/x86/events/intel/core.c         | 7 +++----
 arch/x86/events/intel/lbr.c          | 2 +-
 kernel/events/core.c                 | 3 +--
 4 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index 128fc9..484948 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -790,15 +790,15 @@ static void reset_counters(void *arg)
 	case 4:
 		mipsxx_pmu_write_control(3, 0);
 		mipspmu.write_counter(3, 0);
-		/* fall through */
+		fallthrough;
 	case 3:
 		mipsxx_pmu_write_control(2, 0);
 		mipspmu.write_counter(2, 0);
-		/* fall through */
+		fallthrough;
 	case 2:
 		mipsxx_pmu_write_control(1, 0);
 		mipspmu.write_counter(1, 0);
-		/* fall through */
+		fallthrough;
 	case 1:
 		mipsxx_pmu_write_control(0, 0);
 		mipspmu.write_counter(0, 0);
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 332954..8cd3bb 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -4637,8 +4637,7 @@ __init int intel_pmu_init(void)
 
 	case INTEL_FAM6_CORE2_MEROM:
 		x86_add_quirk(intel_clovertown_quirk);
-		/* fall through */
-
+		fallthrough;
 	case INTEL_FAM6_CORE2_MEROM_L:
 	case INTEL_FAM6_CORE2_PENRYN:
 	case INTEL_FAM6_CORE2_DUNNINGTON:
@@ -5017,7 +5016,7 @@ __init int intel_pmu_init(void)
 
 	case INTEL_FAM6_SKYLAKE_X:
 		pmem = true;
-		/* fall through */
+		fallthrough;
 	case INTEL_FAM6_SKYLAKE_L:
 	case INTEL_FAM6_SKYLAKE:
 	case INTEL_FAM6_KABYLAKE_L:
@@ -5069,7 +5068,7 @@ __init int intel_pmu_init(void)
 	case INTEL_FAM6_ICELAKE_X:
 	case INTEL_FAM6_ICELAKE_D:
 		pmem = true;
-		/* fall through */
+		fallthrough;
 	case INTEL_FAM6_ICELAKE_L:
 	case INTEL_FAM6_ICELAKE:
 	case INTEL_FAM6_TIGERLAKE_L:
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 65113b1..2e2c6fb 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -967,7 +967,7 @@ static int branch_type(unsigned long from, unsigned long to, int abort)
 			ret = X86_BR_ZERO_CALL;
 			break;
 		}
-		/* fall through */
+		fallthrough;
 	case 0x9a: /* call far absolute */
 		ret = X86_BR_CALL;
 		break;
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 6a47c3..7a8ed4d5 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -9762,8 +9762,7 @@ perf_event_parse_addr_filter(struct perf_event *event, char *fstr,
 		case IF_SRC_KERNELADDR:
 		case IF_SRC_KERNEL:
 			kernel = 1;
-			/* fall through */
-
+			fallthrough;
 		case IF_SRC_FILEADDR:
 		case IF_SRC_FILE:
 			if (state != IF_STATE_SOURCE)
-- 
2.24.0