diff mbox series

[v13,1/5] bus/fslmc: fix the conflicting dmb function

Message ID 1573162528-16230-2-git-send-email-david.marchand@redhat.com (mailing list archive)
State Accepted, archived
Delegated to: David Marchand
Headers
Series use WFE for aarch64 |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-compilation success Compile Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS
ci/Intel-compilation fail Compilation issues

Commit Message

David Marchand Nov. 7, 2019, 9:35 p.m. UTC 
  From: Gavin Hu <gavin.hu@arm.com>

There are two definitions conflicting each other, for more
details, refer to [1].

include/rte_atomic_64.h:19: error: "dmb" redefined [-Werror]
drivers/bus/fslmc/mc/fsl_mc_sys.h:36: note: this is the location of the
previous definition
 #define dmb() {__asm__ __volatile__("" : : : "memory"); }

The fix is to reuse the EAL definition to avoid conflicts.

[1] http://inbox.dpdk.org/users/VI1PR08MB537631AB25F41B8880DCCA988FDF0@
VI1PR08MB5376.eurprd08.prod.outlook.com/T/#u

Fixes: 3af733ba8da8 ("bus/fslmc: introduce MC object functions")
Cc: stable@dpdk.org

Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
Changelog since v12:
- fixed Phil Yang mail address,

---
 drivers/bus/fslmc/mc/fsl_mc_sys.h | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

Comments

Honnappa Nagarahalli Dec. 10, 2019, 6:13 a.m. UTC | #1 
In case there are more versions of the WFE patch, is it ok to merge this patch alone?. It will be one less patch to carry around.
Thanks,
Honnappa

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of David Marchand
> Sent: Thursday, November 7, 2019 3:35 PM
> To: dev@dpdk.org
> Cc: nd <nd@arm.com>; konstantin.ananyev@intel.com; Gavin Hu (Arm
> Technology China) <Gavin.Hu@arm.com>; stable@dpdk.org;
> hemant.agrawal@nxp.com; Sachin.saxena@nxp.com
> Subject: [dpdk-dev] [PATCH v13 1/5] bus/fslmc: fix the conflicting dmb
> function
> 
> From: Gavin Hu <gavin.hu@arm.com>
> 
> There are two definitions conflicting each other, for more details, refer to [1].
> 
> include/rte_atomic_64.h:19: error: "dmb" redefined [-Werror]
> drivers/bus/fslmc/mc/fsl_mc_sys.h:36: note: this is the location of the
> previous definition  #define dmb() {__asm__ __volatile__("" : : : "memory"); }
> 
> The fix is to reuse the EAL definition to avoid conflicts.
> 
> [1]
> http://inbox.dpdk.org/users/VI1PR08MB537631AB25F41B8880DCCA988FDF
> 0@
> VI1PR08MB5376.eurprd08.prod.outlook.com/T/#u
> 
> Fixes: 3af733ba8da8 ("bus/fslmc: introduce MC object functions")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Gavin Hu <gavin.hu@arm.com>
> Reviewed-by: Phil Yang <phil.yang@arm.com>
> Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> ---
> Changelog since v12:
> - fixed Phil Yang mail address,
> 
> ---
>  drivers/bus/fslmc/mc/fsl_mc_sys.h | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/bus/fslmc/mc/fsl_mc_sys.h
> b/drivers/bus/fslmc/mc/fsl_mc_sys.h
> index d0c7b39..a310c56 100644
> --- a/drivers/bus/fslmc/mc/fsl_mc_sys.h
> +++ b/drivers/bus/fslmc/mc/fsl_mc_sys.h
> @@ -32,11 +32,10 @@ struct fsl_mc_io {
>  #include <sys/uio.h>
>  #include <linux/byteorder/little_endian.h>
> 
> -#ifndef dmb
> -#define dmb() {__asm__ __volatile__("" : : : "memory"); } -#endif
> -#define __iormb()	dmb()
> -#define __iowmb()	dmb()
> +#include <rte_atomic.h>
> +
> +#define __iormb()	rte_io_rmb()
> +#define __iowmb()	rte_io_wmb()
>  #define __arch_getq(a)		(*(volatile uint64_t *)(a))
>  #define __arch_putq(v, a)	(*(volatile uint64_t *)(a) = (v))
>  #define __arch_putq32(v, a)	(*(volatile uint32_t *)(a) = (v))
> --
> 1.8.3.1
diff mbox series

Patch

diff --git a/drivers/bus/fslmc/mc/fsl_mc_sys.h b/drivers/bus/fslmc/mc/fsl_mc_sys.h
index d0c7b39..a310c56 100644
--- a/drivers/bus/fslmc/mc/fsl_mc_sys.h
+++ b/drivers/bus/fslmc/mc/fsl_mc_sys.h
@@ -32,11 +32,10 @@  struct fsl_mc_io {
 #include <sys/uio.h>
 #include <linux/byteorder/little_endian.h>
 
-#ifndef dmb
-#define dmb() {__asm__ __volatile__("" : : : "memory"); }
-#endif
-#define __iormb()	dmb()
-#define __iowmb()	dmb()
+#include <rte_atomic.h>
+
+#define __iormb()	rte_io_rmb()
+#define __iowmb()	rte_io_wmb()
 #define __arch_getq(a)		(*(volatile uint64_t *)(a))
 #define __arch_putq(v, a)	(*(volatile uint64_t *)(a) = (v))
 #define __arch_putq32(v, a)	(*(volatile uint32_t *)(a) = (v))