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authorLinus Torvalds <torvalds@linux-foundation.org>2019-08-10 10:10:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-08-10 10:10:33 -0700
commitbf1881cf484dd96a97606a804553019f8f08f0d4 (patch)
treeaa2dfcee4cef13e2b16c05fca167dd1338bea6a0 /arch/arm/kernel/hw_breakpoint.c
parent451577f3e3a9bf1861218641dbbf98e214e77851 (diff)
parent1f7585f30a3af595ac07f610b807c738c9e3baab (diff)
Merge tag 'Wimplicit-fallthrough-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull fall-through fixes from Gustavo A. R. Silva: "Mark more switch cases where we are expecting to fall through, fixing fall-through warnings in arm, sparc64, mips, i386 and s390" * tag 'Wimplicit-fallthrough-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: ARM: ep93xx: Mark expected switch fall-through scsi: fas216: Mark expected switch fall-throughs pcmcia: db1xxx_ss: Mark expected switch fall-throughs video: fbdev: omapfb_main: Mark expected switch fall-throughs watchdog: riowd: Mark expected switch fall-through s390/net: Mark expected switch fall-throughs crypto: ux500/crypt: Mark expected switch fall-throughs watchdog: wdt977: Mark expected switch fall-through watchdog: scx200_wdt: Mark expected switch fall-through watchdog: Mark expected switch fall-throughs ARM: signal: Mark expected switch fall-through mfd: omap-usb-host: Mark expected switch fall-throughs mfd: db8500-prcmu: Mark expected switch fall-throughs ARM: OMAP: dma: Mark expected switch fall-throughs ARM: alignment: Mark expected switch fall-throughs ARM: tegra: Mark expected switch fall-through ARM/hw_breakpoint: Mark expected switch fall-throughs
Diffstat (limited to 'arch/arm/kernel/hw_breakpoint.c')
-rw-r--r--arch/arm/kernel/hw_breakpoint.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index af8b8e15f589..b0c195e3a06d 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -544,6 +544,7 @@ static int arch_build_bp_info(struct perf_event *bp,
if ((hw->ctrl.type != ARM_BREAKPOINT_EXECUTE)
&& max_watchpoint_len >= 8)
break;
+ /* Else, fall through */
default:
return -EINVAL;
}
@@ -608,10 +609,12 @@ int hw_breakpoint_arch_parse(struct perf_event *bp,
/* Allow halfword watchpoints and breakpoints. */
if (hw->ctrl.len == ARM_BREAKPOINT_LEN_2)
break;
+ /* Else, fall through */
case 3:
/* Allow single byte watchpoint. */
if (hw->ctrl.len == ARM_BREAKPOINT_LEN_1)
break;
+ /* Else, fall through */
default:
ret = -EINVAL;
goto out;
@@ -861,6 +864,7 @@ static int hw_breakpoint_pending(unsigned long addr, unsigned int fsr,
break;
case ARM_ENTRY_ASYNC_WATCHPOINT:
WARN(1, "Asynchronous watchpoint exception taken. Debugging results may be unreliable\n");
+ /* Fall through */
case ARM_ENTRY_SYNC_WATCHPOINT:
watchpoint_handler(addr, fsr, regs);
break;
@@ -909,6 +913,7 @@ static bool core_has_os_save_restore(void)
ARM_DBG_READ(c1, c1, 4, oslsr);
if (oslsr & ARM_OSLSR_OSLM0)
return true;
+ /* Else, fall through */
default:
return false;
}