On 05.03.2018 12:16, Christian Borntraeger wrote:
> From: Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx>
>
> A case statement in kvm_s390_shadow_tables uses fallthrough annotations
> which are not recognized by gcc because they are hidden within a block.
> Move these annotations out of the block to fix (W=1) warnings like below:
>
> arch/s390/kvm/gaccess.c: In function 'kvm_s390_shadow_tables':
> arch/s390/kvm/gaccess.c:1029:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
> case ASCE_TYPE_REGION1: {
> ^
>
> Signed-off-by: Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
> ---
> arch/s390/kvm/gaccess.c | 9 +++------
> 1 file changed, 3 insertions(+), 6 deletions(-)
>
> diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
> index c24bfa72baf7..8e2b8647ee12 100644
> --- a/arch/s390/kvm/gaccess.c
> +++ b/arch/s390/kvm/gaccess.c
> @@ -1050,8 +1050,7 @@ static int kvm_s390_shadow_tables(struct gmap *sg, unsigned long saddr,
> rc = gmap_shadow_r2t(sg, saddr, rfte.val, *fake);
> if (rc)
> return rc;
> - /* fallthrough */
> - }
> + } /* fallthrough */
> case ASCE_TYPE_REGION2: {
> union region2_table_entry rste;
>
> @@ -1077,8 +1076,7 @@ static int kvm_s390_shadow_tables(struct gmap *sg, unsigned long saddr,
> rc = gmap_shadow_r3t(sg, saddr, rste.val, *fake);
> if (rc)
> return rc;
> - /* fallthrough */
> - }
> + } /* fallthrough */
> case ASCE_TYPE_REGION3: {
> union region3_table_entry rtte;
>
> @@ -1113,8 +1111,7 @@ static int kvm_s390_shadow_tables(struct gmap *sg, unsigned long saddr,
> rc = gmap_shadow_sgt(sg, saddr, rtte.val, *fake);
> if (rc)
> return rc;
> - /* fallthrough */
> - }
> + } /* fallthrough */
> case ASCE_TYPE_SEGMENT: {
> union segment_table_entry ste;
>
>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
--
Thanks,
David / dhildenb
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