[dpdk-dev] eal: fix C++ build (struct member: virtual)

Message ID 56069ea4.47ac700a.ca875.43bb@mx.google.com (mailing list archive)
State Superseded, archived
Headers

Commit Message

Christoph Gysin Sept. 26, 2015, 1:09 p.m. UTC
  'virtual' is a keyword and can't be used if the code is to compile with
C++ compilers.

If rte_devargs.h was included in C++ code, compilation with clang++
failed with an error. g++ did not fail, but only because of a bug
that treats it as an anonymous struct with a decl-specifier which it
ignores.

This simply renames the member to 'virt'.
---
 lib/librte_eal/common/eal_common_dev.c      | 4 ++--
 lib/librte_eal/common/eal_common_devargs.c  | 8 ++++----
 lib/librte_eal/common/include/rte_devargs.h | 2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)
  

Comments

Cristian Dumitrescu Sept. 28, 2015, 8:04 p.m. UTC | #1
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Christoph Gysin
> Sent: Saturday, September 26, 2015 2:10 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH] eal: fix C++ build (struct member: virtual)
> 
> 'virtual' is a keyword and can't be used if the code is to compile with
> C++ compilers.
> 
> If rte_devargs.h was included in C++ code, compilation with clang++
> failed with an error. g++ did not fail, but only because of a bug
> that treats it as an anonymous struct with a decl-specifier which it
> ignores.
> 
> This simply renames the member to 'virt'.
> ---

Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>

David, Thomas, are you OK with this change? Thanks, Cristian
  

Patch

diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c
index 4089d66..a8a4146 100644
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -107,10 +107,10 @@  rte_eal_dev_init(void)
 		if (devargs->type != RTE_DEVTYPE_VIRTUAL)
 			continue;
 
-		if (rte_eal_vdev_init(devargs->virtual.drv_name,
+		if (rte_eal_vdev_init(devargs->virt.drv_name,
 					devargs->args)) {
 			RTE_LOG(ERR, EAL, "failed to initialize %s device\n",
-					devargs->virtual.drv_name);
+					devargs->virt.drv_name);
 			return -1;
 		}
 	}
diff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c
index ec56165..5d075d0 100644
--- a/lib/librte_eal/common/eal_common_devargs.c
+++ b/lib/librte_eal/common/eal_common_devargs.c
@@ -107,9 +107,9 @@  rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
 		break;
 	case RTE_DEVTYPE_VIRTUAL:
 		/* save driver name */
-		ret = snprintf(devargs->virtual.drv_name,
-			       sizeof(devargs->virtual.drv_name), "%s", buf);
-		if (ret < 0 || ret >= (int)sizeof(devargs->virtual.drv_name))
+		ret = snprintf(devargs->virt.drv_name,
+			       sizeof(devargs->virt.drv_name), "%s", buf);
+		if (ret < 0 || ret >= (int)sizeof(devargs->virt.drv_name))
 			goto fail;
 
 		break;
@@ -169,7 +169,7 @@  rte_eal_devargs_dump(FILE *f)
 			       devargs->args);
 		else if (devargs->type == RTE_DEVTYPE_VIRTUAL)
 			fprintf(f, "  VIRTUAL %s %s\n",
-			       devargs->virtual.drv_name,
+			       devargs->virt.drv_name,
 			       devargs->args);
 		else
 			fprintf(f, "  UNKNOWN %s\n", devargs->args);
diff --git a/lib/librte_eal/common/include/rte_devargs.h b/lib/librte_eal/common/include/rte_devargs.h
index 7084ae2..53c59f5 100644
--- a/lib/librte_eal/common/include/rte_devargs.h
+++ b/lib/librte_eal/common/include/rte_devargs.h
@@ -86,7 +86,7 @@  struct rte_devargs {
 		struct {
 			/** Driver name. */
 			char drv_name[32];
-		} virtual;
+		} virt;
 	};
 	/** Arguments string as given by user or "" for no argument. */
 	char *args;