s390/uaccess: add "fallthrough" comments
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>
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@ -89,16 +89,19 @@ static unsigned long follow_table(struct mm_struct *mm,
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if (unlikely(*table & _REGION_ENTRY_INV))
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return -0x39UL;
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table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
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/* fallthrough */
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case _ASCE_TYPE_REGION2:
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table = table + ((address >> 42) & 0x7ff);
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if (unlikely(*table & _REGION_ENTRY_INV))
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return -0x3aUL;
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table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
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/* fallthrough */
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case _ASCE_TYPE_REGION3:
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table = table + ((address >> 31) & 0x7ff);
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if (unlikely(*table & _REGION_ENTRY_INV))
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return -0x3bUL;
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table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
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/* fallthrough */
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case _ASCE_TYPE_SEGMENT:
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table = table + ((address >> 20) & 0x7ff);
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if (unlikely(*table & _SEGMENT_ENTRY_INV))
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