Re: [Xen-devel] [PATCH 03/17 v5] xen/arm: vpl011: Define common ring buffer helper functions in console.h

[Wei Liu]

On Thu, Jun 22, 2017 at 01:08:38PM +0530, Bhupinder Thakur wrote:
> DEFINE_XEN_FLEX_RING(xencons) defines common helper functions such as
> xencons_queued() to tell the current size of the ring buffer,
> xencons_mask() to mask off the index, which are useful helper functions.
> pl011 emulation code will use these helper functions.
> 
> io/consol.h includes io/ring.h which defines DEFINE_XEN_FLEX_RING.
> 
> In console/daemon/io.c, string.h had to be included before io/console.h
> because ring.h uses string functions.
> 
> Signed-off-by: Bhupinder Thakur 

Acked-by: Wei Liu 

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Re: [Xen-devel] [PATCH 03/17 v5] xen/arm: vpl011: Define common ring buffer helper functions in console.h

[Stefano Stabellini]

On Thu, 22 Jun 2017, Bhupinder Thakur wrote:
> DEFINE_XEN_FLEX_RING(xencons) defines common helper functions such as
> xencons_queued() to tell the current size of the ring buffer,
> xencons_mask() to mask off the index, which are useful helper functions.
> pl011 emulation code will use these helper functions.
> 
> io/consol.h includes io/ring.h which defines DEFINE_XEN_FLEX_RING.

io/console.h


> In console/daemon/io.c, string.h had to be included before io/console.h
> because ring.h uses string functions.
> 
> Signed-off-by: Bhupinder Thakur 

Reviewed-by: Stefano Stabellini 


> ---
> CC: Ian Jackson 
> CC: Wei Liu 
> CC: Konrad Rzeszutek Wilk 
> CC: Stefano Stabellini 
> CC: Julien Grall 
> 
> Changes since v4:
> - Split this change in a separate patch.
> 
>  tools/console/daemon/io.c   | 2 +-
>  xen/include/public/io/console.h | 4 
>  2 files changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/console/daemon/io.c b/tools/console/daemon/io.c
> index 7e474bb..e8033d2 100644
> --- a/tools/console/daemon/io.c
> +++ b/tools/console/daemon/io.c
> @@ -21,6 +21,7 @@
>  
>  #include "utils.h"
>  #include "io.h"
> +#include 
>  #include 
>  #include 
>  #include 
> @@ -29,7 +30,6 @@
>  
>  #include 
>  #include 
> -#include 
>  #include 
>  #include 
>  #include 
> diff --git a/xen/include/public/io/console.h b/xen/include/public/io/console.h
> index e2cd97f..5e45e1c 100644
> --- a/xen/include/public/io/console.h
> +++ b/xen/include/public/io/console.h
> @@ -27,6 +27,8 @@
>  #ifndef __XEN_PUBLIC_IO_CONSOLE_H__
>  #define __XEN_PUBLIC_IO_CONSOLE_H__
>  
> +#include "ring.h"
> +
>  typedef uint32_t XENCONS_RING_IDX;
>  
>  #define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1))
> @@ -38,6 +40,8 @@ struct xencons_interface {
>  XENCONS_RING_IDX out_cons, out_prod;
>  };
>  
> +DEFINE_XEN_FLEX_RING(xencons);
> +
>  #endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */
>  
>  /*

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[Xen-devel] [PATCH 03/17 v5] xen/arm: vpl011: Define common ring buffer helper functions in console.h

[Bhupinder Thakur]

DEFINE_XEN_FLEX_RING(xencons) defines common helper functions such as
xencons_queued() to tell the current size of the ring buffer,
xencons_mask() to mask off the index, which are useful helper functions.
pl011 emulation code will use these helper functions.

io/consol.h includes io/ring.h which defines DEFINE_XEN_FLEX_RING.

In console/daemon/io.c, string.h had to be included before io/console.h
because ring.h uses string functions.

Signed-off-by: Bhupinder Thakur 
---
CC: Ian Jackson 
CC: Wei Liu 
CC: Konrad Rzeszutek Wilk 
CC: Stefano Stabellini 
CC: Julien Grall 

Changes since v4:
- Split this change in a separate patch.

 tools/console/daemon/io.c   | 2 +-
 xen/include/public/io/console.h | 4 
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/console/daemon/io.c b/tools/console/daemon/io.c
index 7e474bb..e8033d2 100644
--- a/tools/console/daemon/io.c
+++ b/tools/console/daemon/io.c
@@ -21,6 +21,7 @@
 
 #include "utils.h"
 #include "io.h"
+#include 
 #include 
 #include 
 #include 
@@ -29,7 +30,6 @@
 
 #include 
 #include 
-#include 
 #include 
 #include 
 #include 
diff --git a/xen/include/public/io/console.h b/xen/include/public/io/console.h
index e2cd97f..5e45e1c 100644
--- a/xen/include/public/io/console.h
+++ b/xen/include/public/io/console.h
@@ -27,6 +27,8 @@
 #ifndef __XEN_PUBLIC_IO_CONSOLE_H__
 #define __XEN_PUBLIC_IO_CONSOLE_H__
 
+#include "ring.h"
+
 typedef uint32_t XENCONS_RING_IDX;
 
 #define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1))
@@ -38,6 +40,8 @@ struct xencons_interface {
 XENCONS_RING_IDX out_cons, out_prod;
 };
 
+DEFINE_XEN_FLEX_RING(xencons);
+
 #endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */
 
 /*
-- 
2.7.4


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