From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Wed, 28 Nov 2018 22:28:30 +0000 (+1100)
Subject: powerpc: annotate implicit fall throughs
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=8ad940217cce2b6ccc8d8cc7156e9aea34ae5573;p=openwrt%2Fstaging%2Fblogic.git

powerpc: annotate implicit fall throughs

There is a plan to build the kernel with -Wimplicit-fallthrough and these
places in the code produced warnings, but because we build arch/powerpc
with -Werror, they became errors.  Fix them up.

This patch produces no change in behaviour, but should be reviewed in
case these are actually bugs not intentional fallthoughs.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 22e9d281324d..06e2eda2430e 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -809,6 +809,7 @@ static long dev_nvram_ioctl(struct file *file, unsigned int cmd,
 #ifdef CONFIG_PPC_PMAC
 	case OBSOLETE_PMAC_NVRAM_GET_OFFSET:
 		printk(KERN_WARNING "nvram: Using obsolete PMAC_NVRAM_GET_OFFSET ioctl\n");
+		/* fall through */
 	case IOC_NVRAM_GET_OFFSET: {
 		int part, offset;
 
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index 073ff4544083..bdb3316337b6 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -1471,6 +1471,7 @@ static long g5_i2s_enable(struct device_node *node, long param, long value)
 	case 2:
 		if (macio->type == macio_shasta)
 			break;
+		/* fall through */
 	default:
 		return -ENODEV;
 	}
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 1f943e884e85..372f4d80bcd6 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -4043,6 +4043,7 @@ static int do_spu_cmd(void)
 		subcmd = inchar();
 		if (isxdigit(subcmd) || subcmd == '\n')
 			termch = subcmd;
+		/* fall through */
 	case 'f':
 		scanhex(&num);
 		if (num >= XMON_NUM_SPUS || !spu_info[num].spu) {