[PATCH 2/6] staging: vc04_services: Change fields of page list structure to fixed length

mzoran at crowfest.net mzoran at crowfest.net
Wed Oct 19 15:58:27 PDT 2016


From: Michael Zoran <mzoran at crowfest.net>

The arm processor core and the GPU have shared data structures.
One of these structures is a list of pages of data for messages.
This structure can not change since it is dependent on the GPU
firmware which is external to the kernel.  Convert the fields
of this structure to fixed length fields.

Signed-off-by: Michael Zoran <mzoran at crowfest.net>
Reviewed-by: Eric Anholt <eric at anholt.net>
---
 .../vc04_services/interface/vchiq_arm/vchiq_pagelist.h       | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_pagelist.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_pagelist.h
index 54a3ece..12c304c 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_pagelist.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_pagelist.h
@@ -43,11 +43,13 @@
 #define PAGELIST_READ_WITH_FRAGMENTS 2
 
 typedef struct pagelist_struct {
-	unsigned long length;
-	unsigned short type;
-	unsigned short offset;
-	unsigned long addrs[1];	/* N.B. 12 LSBs hold the number of following
-				   pages at consecutive addresses. */
+	u32 length;
+	u16 type;
+	u16 offset;
+	u32 addrs[1];	/* N.B. 12 LSBs hold the number
+			 * of following pages at consecutive
+			 * addresses.
+			 */
 } PAGELIST_T;
 
 typedef struct fragments_struct {
-- 
2.9.3




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