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Commit 12d84713 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
Browse files

s390/uaccess: add "fallthrough" comments 



Add "fallthrough" comments so nobody wonders if a break statement is missing.

Reported-by: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 20b4fb48

arch/s390/lib/uaccess_pt.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -89,16 +89,19 @@ static unsigned long follow_table(struct mm_struct *mm, 
		if (unlikely(*table & _REGION_ENTRY_INV))

		if (unlikely(*table & _REGION_ENTRY_INV))

			return -0x39UL;

			return -0x39UL;

		table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);

		table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);

		/* fallthrough */

	case _ASCE_TYPE_REGION2:

	case _ASCE_TYPE_REGION2:

		table = table + ((address >> 42) & 0x7ff);

		table = table + ((address >> 42) & 0x7ff);

		if (unlikely(*table & _REGION_ENTRY_INV))

		if (unlikely(*table & _REGION_ENTRY_INV))

			return -0x3aUL;

			return -0x3aUL;

		table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);

		table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);

		/* fallthrough */

	case _ASCE_TYPE_REGION3:

	case _ASCE_TYPE_REGION3:

		table = table + ((address >> 31) & 0x7ff);

		table = table + ((address >> 31) & 0x7ff);

		if (unlikely(*table & _REGION_ENTRY_INV))

		if (unlikely(*table & _REGION_ENTRY_INV))

			return -0x3bUL;

			return -0x3bUL;

		table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);

		table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);

		/* fallthrough */

	case _ASCE_TYPE_SEGMENT:

	case _ASCE_TYPE_SEGMENT:

		table = table + ((address >> 20) & 0x7ff);

		table = table + ((address >> 20) & 0x7ff);

		if (unlikely(*table & _SEGMENT_ENTRY_INV))

		if (unlikely(*table & _SEGMENT_ENTRY_INV))