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s390/uaccess: add "fallthrough" comments

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

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2013-04-29 10:58:56 +02:00 committed by Martin Schwidefsky
parent 20b4fb4852
commit 12d8471315
1 changed files with 3 additions and 0 deletions
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3
arch/s390/lib/uaccess_pt.c
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@ -89,16 +89,19 @@ static unsigned long follow_table(struct mm_struct *mm,
if (unlikely(*table & _REGION_ENTRY_INV))
return -0x39UL;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* fallthrough */
case _ASCE_TYPE_REGION2:
table = table + ((address >> 42) & 0x7ff);
if (unlikely(*table & _REGION_ENTRY_INV))
return -0x3aUL;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* fallthrough */
case _ASCE_TYPE_REGION3:
table = table + ((address >> 31) & 0x7ff);
if (unlikely(*table & _REGION_ENTRY_INV))
return -0x3bUL;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* fallthrough */
case _ASCE_TYPE_SEGMENT:
table = table + ((address >> 20) & 0x7ff);
if (unlikely(*table & _SEGMENT_ENTRY_INV))