[dpdk-dev] [PATCH v2 2/2] vfio: don't build unnecessary files

[Stephen Hemminger]

From: Stephen Hemminger <shemming at brocade.com>

If VFIO is configured, it is better to just not build the source
files (rather than generating empty object files).

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
---
 lib/librte_eal/linuxapp/eal/Makefile               | 4 ++--
 lib/librte_eal/linuxapp/eal/eal_pci_vfio.c         | 3 ---
 lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c | 3 ---
 3 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/lib/librte_eal/linuxapp/eal/Makefile b/lib/librte_eal/linuxapp/eal/Makefile
index 42a16fe..bc513c0 100644
--- a/lib/librte_eal/linuxapp/eal/Makefile
+++ b/lib/librte_eal/linuxapp/eal/Makefile
@@ -64,8 +64,8 @@ SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_thread.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_log.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_pci.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_pci_uio.c
-SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_pci_vfio.c
-SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_pci_vfio_mp_sync.c
+SRCS-$(CONFIG_RTE_EAL_VFIO) += eal_pci_vfio.c
+SRCS-$(CONFIG_RTE_EAL_VFIO) += eal_pci_vfio_mp_sync.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_debug.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_lcore.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_timer.c
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c b/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
index 426953a..9ba4b10 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
@@ -59,8 +59,6 @@
  * This file is only compiled if CONFIG_RTE_EAL_VFIO is set to "y".
  */
 
-#ifdef VFIO_PRESENT
-
 #define PAGE_SIZE   (sysconf(_SC_PAGESIZE))
 #define PAGE_MASK   (~(PAGE_SIZE - 1))
 
@@ -909,4 +907,3 @@ pci_vfio_is_enabled(void)
 {
 	return vfio_cfg.vfio_enabled;
 }
-#endif
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c b/lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c
index fec7080..657fc2c 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_vfio_mp_sync.c
@@ -62,8 +62,6 @@
  * This file is only compiled if CONFIG_RTE_EAL_VFIO is set to "y".
  */
 
-#ifdef VFIO_PRESENT
-
 #define SOCKET_PATH_FMT "%s/.%s_mp_socket"
 #define CMSGLEN (CMSG_LEN(sizeof(int)))
 #define FD_TO_CMSGHDR(fd, chdr) \
@@ -391,4 +389,3 @@ pci_vfio_mp_sync_setup(void)
 	return 0;
 }
 
-#endif
-- 
2.1.4