Re: [PATCH 05/12] s390/css: expose the AIV facility

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On 17.01.18 16:19, David Hildenbrand wrote:
On 16.01.2018 21:02, Christian Borntraeger wrote:
From: Michael Mueller <mimu@xxxxxxxxxxxxxxxxxx>

The patch exposes the Adapter Interruption Virtualization facility (AIV)
of the general channel subsystem characteristics.

Signed-off-by: Michael Mueller <mimu@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Halil Pasic <pasic@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
  arch/s390/include/asm/css_chars.h | 4 +++-
  1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/s390/include/asm/css_chars.h b/arch/s390/include/asm/css_chars.h
index a478eb61aaf7..fb56fa3283a2 100644
--- a/arch/s390/include/asm/css_chars.h
+++ b/arch/s390/include/asm/css_chars.h
@@ -20,7 +20,9 @@ struct css_general_char {
  	u32 aif_tdd : 1; /* bit 56 */
  	u32 : 1;
  	u32 qebsm : 1;	 /* bit 58 */
-	u32 : 8;
+	u32 : 2;
+	u32 aiv : 1;     /* bit 61 */
+	u32 : 5;
  	u32 aif_osa : 1; /* bit 67 */
  	u32 : 12;
  	u32 eadm_rf : 1; /* bit 80 */

"Expose" sounds like actually forwarding something / enabling a bit.
Expose here basically means to make sth. visible what was already available.
Wonder if this can be squashed with another patch?

Or rename to something like "define" ...
I don't plan to change anything.

Thanks,
Michael

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