[dpdk-dev,v6,02/11] eal/linux: never check iopl for arm

Message ID 1453371964-3354-1-git-send-email-sshukla@mvista.com (mailing list archive)
State Superseded, archived
Headers

Commit Message

Santosh Shukla Jan. 21, 2016, 10:26 a.m. UTC
  iopl() syscall not supported in linux-arm/arm64 so always return 0 value.

Signed-off-by: Santosh Shukla <sshukla@mvista.com>
Acked-by: Jan Viktorin <viktorin@rehivetech.com>
Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
---

v5 --> v5:
- Renamed patch titled from "linuxapp: eal: arm: Always return 0 for
  rte_eal_iopl_init()" to current, Suggested by David.
  v5 patch was this[1]
 [1] http://dpdk.org/dev/patchwork/patch/9978/

 lib/librte_eal/linuxapp/eal/eal.c |    2 ++
 1 file changed, 2 insertions(+)
  

Comments

David Marchand Jan. 21, 2016, 10:28 a.m. UTC | #1
On Thu, Jan 21, 2016 at 11:26 AM, Santosh Shukla <sshukla@mvista.com> wrote:
> iopl() syscall not supported in linux-arm/arm64 so always return 0 value.
>
> Signed-off-by: Santosh Shukla <sshukla@mvista.com>
> Acked-by: Jan Viktorin <viktorin@rehivetech.com>
> Suggested-by: Stephen Hemminger <stephen@networkplumber.org>

Acked-by: David Marchand <david.marchand@6wind.com>
  

Patch

diff --git a/lib/librte_eal/linuxapp/eal/eal.c b/lib/librte_eal/linuxapp/eal/eal.c
index 635ec36..a2a3485 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -715,6 +715,8 @@  rte_eal_iopl_init(void)
 	if (iopl(3) != 0)
 		return -1;
 	return 0;
+#elif defined(RTE_ARCH_ARM) || defined(RTE_ARCH_ARM64)
+	return 0; /* iopl syscall not supported for ARM/ARM64 */
 #else
 	return -1;
 #endif