From: Thomas Monjalon <thomas@monjalon.net>
To: dev@dpdk.org
Cc: ferruh.yigit@intel.com, bruce.richardson@intel.com,
Liang Ma <liang.j.ma@intel.com>,
Peter Mccarthy <peter.mccarthy@intel.com>,
Harry van Haaren <harry.van.haaren@intel.com>,
Qi Zhang <qi.z.zhang@intel.com>,
Xiao Wang <xiao.w.wang@intel.com>,
Beilei Xing <beilei.xing@intel.com>,
Alfredo Cardigliano <cardigliano@ntop.org>
Subject: [dpdk-dev] [PATCH] mk: ignore missing field initializers warning
Date: Tue, 21 Jan 2020 15:35:31 +0100 [thread overview]
Message-ID: <20200121143531.2677911-1-thomas@monjalon.net> (raw)
Three warnings are commonly disabled in DPDK with make and meson:
* address-of-packed-member
always disabled
* missing-field-initializers
disabled with meson
disabled with make + clang or make + gcc < 4.7
disabled with make + gcc <= 5 for test files and event drivers
* packed-not-aligned
disabled with meson
This change is removing exceptions for missing-field-initializers.
As it is always disabled, some redundant configs are cleaned up.
Now the situation is:
* address-of-packed-member
always disabled
* missing-field-initializers
always disabled
* packed-not-aligned
disabled with meson
It could alternatively be decided to disable missing-field-initializers
only for old gcc (< 6).
The warning packed-not-aligned is not modified in this change.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
app/test/Makefile | 7 -------
drivers/event/opdl/Makefile | 7 -------
drivers/event/sw/Makefile | 7 -------
drivers/net/fm10k/Makefile | 2 --
drivers/net/i40e/Makefile | 2 --
drivers/net/ionic/Makefile | 3 ---
drivers/net/ionic/meson.build | 10 ----------
mk/toolchain/clang/rte.vars.mk | 2 +-
mk/toolchain/gcc/rte.vars.mk | 4 +---
9 files changed, 2 insertions(+), 42 deletions(-)
diff --git a/app/test/Makefile b/app/test/Makefile
index 57930c00b1..498008bb78 100644
--- a/app/test/Makefile
+++ b/app/test/Makefile
@@ -258,13 +258,6 @@ ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
ifeq ($(shell test $(GCC_VERSION) -ge 44 && echo 1), 1)
CFLAGS_test_memcpy.o += -fno-var-tracking-assignments
CFLAGS_test_memcpy_perf.o += -fno-var-tracking-assignments
-# for older GCC versions, allow us to initialize an event using
-# designated initializers.
-ifeq ($(shell test $(GCC_VERSION) -le 50 && echo 1), 1)
-CFLAGS_test_eventdev_sw.o += -Wno-missing-field-initializers
-CFLAGS_test_event_timer_adapter.o += -Wno-missing-field-initializers
-CFLAGS_test_event_crypto_adapter.o += -Wno-missing-field-initializers
-endif
endif
endif
diff --git a/drivers/event/opdl/Makefile b/drivers/event/opdl/Makefile
index fb87c7d0d4..1dfd6f5e83 100644
--- a/drivers/event/opdl/Makefile
+++ b/drivers/event/opdl/Makefile
@@ -10,13 +10,6 @@ LIB = librte_pmd_opdl_event.a
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)
CFLAGS += -DALLOW_EXPERIMENTAL_API
-# for older GCC versions, allow us to initialize an event using
-# designated initializers.
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-ifeq ($(shell test $(GCC_VERSION) -le 50 && echo 1), 1)
-CFLAGS += -Wno-missing-field-initializers
-endif
-endif
LDLIBS += -lrte_eal -lrte_eventdev -lrte_kvargs
LDLIBS += -lrte_bus_vdev -lrte_mbuf -lrte_mempool
diff --git a/drivers/event/sw/Makefile b/drivers/event/sw/Makefile
index 17937e295e..8ea5cceb8b 100644
--- a/drivers/event/sw/Makefile
+++ b/drivers/event/sw/Makefile
@@ -9,13 +9,6 @@ LIB = librte_pmd_sw_event.a
# build flags
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)
-# for older GCC versions, allow us to initialize an event using
-# designated initializers.
-ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
-ifeq ($(shell test $(GCC_VERSION) -le 50 && echo 1), 1)
-CFLAGS += -Wno-missing-field-initializers
-endif
-endif
LDLIBS += -lrte_eal -lrte_eventdev -lrte_kvargs -lrte_ring
LDLIBS += -lrte_mempool -lrte_mbuf
LDLIBS += -lrte_bus_vdev
diff --git a/drivers/net/fm10k/Makefile b/drivers/net/fm10k/Makefile
index 722bf1ee04..0271bcb15e 100644
--- a/drivers/net/fm10k/Makefile
+++ b/drivers/net/fm10k/Makefile
@@ -29,7 +29,6 @@ else ifeq ($(CONFIG_RTE_TOOLCHAIN_CLANG),y)
CFLAGS_BASE_DRIVER = -Wno-unused-parameter -Wno-unused-value
CFLAGS_BASE_DRIVER += -Wno-strict-aliasing -Wno-format-extra-args
CFLAGS_BASE_DRIVER += -Wno-unused-variable
-CFLAGS_BASE_DRIVER += -Wno-missing-field-initializers
else
#
@@ -38,7 +37,6 @@ else
CFLAGS_BASE_DRIVER = -Wno-unused-parameter -Wno-unused-value
CFLAGS_BASE_DRIVER += -Wno-strict-aliasing -Wno-format-extra-args
CFLAGS_BASE_DRIVER += -Wno-unused-variable
-CFLAGS_BASE_DRIVER += -Wno-missing-field-initializers
ifeq ($(shell test $(GCC_VERSION) -ge 44 && echo 1), 1)
CFLAGS += -Wno-deprecated
diff --git a/drivers/net/i40e/Makefile b/drivers/net/i40e/Makefile
index 435eb511ad..819473abac 100644
--- a/drivers/net/i40e/Makefile
+++ b/drivers/net/i40e/Makefile
@@ -31,7 +31,6 @@ CFLAGS_BASE_DRIVER += -Wno-unused-value
CFLAGS_BASE_DRIVER += -Wno-unused-parameter
CFLAGS_BASE_DRIVER += -Wno-strict-aliasing
CFLAGS_BASE_DRIVER += -Wno-format
-CFLAGS_BASE_DRIVER += -Wno-missing-field-initializers
CFLAGS_BASE_DRIVER += -Wno-pointer-to-int-cast
CFLAGS_BASE_DRIVER += -Wno-format-nonliteral
CFLAGS_BASE_DRIVER += -Wno-unused-variable
@@ -41,7 +40,6 @@ CFLAGS_BASE_DRIVER += -Wno-unused-value
CFLAGS_BASE_DRIVER += -Wno-unused-parameter
CFLAGS_BASE_DRIVER += -Wno-strict-aliasing
CFLAGS_BASE_DRIVER += -Wno-format
-CFLAGS_BASE_DRIVER += -Wno-missing-field-initializers
CFLAGS_BASE_DRIVER += -Wno-pointer-to-int-cast
CFLAGS_BASE_DRIVER += -Wno-format-nonliteral
CFLAGS_BASE_DRIVER += -Wno-format-security
diff --git a/drivers/net/ionic/Makefile b/drivers/net/ionic/Makefile
index bfbe15e27b..f74ac2d34f 100644
--- a/drivers/net/ionic/Makefile
+++ b/drivers/net/ionic/Makefile
@@ -31,7 +31,4 @@ SRCS-$(CONFIG_RTE_LIBRTE_IONIC_PMD) += ionic_ethdev.c
SRCS-$(CONFIG_RTE_LIBRTE_IONIC_PMD) += ionic_lif.c
SRCS-$(CONFIG_RTE_LIBRTE_IONIC_PMD) += ionic_main.c
-CFLAGS_ionic_dev.o += -Wno-missing-field-initializers
-CFLAGS_ionic_lif.o += -Wno-missing-field-initializers
-
include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/ionic/meson.build b/drivers/net/ionic/meson.build
index 06b7760180..1c6362d27c 100644
--- a/drivers/net/ionic/meson.build
+++ b/drivers/net/ionic/meson.build
@@ -10,13 +10,3 @@ sources = files(
'ionic_lif.c',
'ionic_main.c'
)
-
-error_cflags = [
- '-Wno-missing-field-initializers',
-]
-
-foreach flag: error_cflags
- if cc.has_argument(flag)
- c_args += flag
- endif
-endforeach
diff --git a/mk/toolchain/clang/rte.vars.mk b/mk/toolchain/clang/rte.vars.mk
index 3c49dc568d..d441f6d8f3 100644
--- a/mk/toolchain/clang/rte.vars.mk
+++ b/mk/toolchain/clang/rte.vars.mk
@@ -48,7 +48,7 @@ endif
# process cpu flags
include $(RTE_SDK)/mk/toolchain/$(RTE_TOOLCHAIN)/rte.toolchain-compat.mk
-# workaround clang bug with warning "missing field initializer" for "= {0}"
+# disable warning for non-initialised fields
WERROR_FLAGS += -Wno-missing-field-initializers
# disable packed member unalign warnings
diff --git a/mk/toolchain/gcc/rte.vars.mk b/mk/toolchain/gcc/rte.vars.mk
index 9fc704193b..f19305e495 100644
--- a/mk/toolchain/gcc/rte.vars.mk
+++ b/mk/toolchain/gcc/rte.vars.mk
@@ -74,10 +74,8 @@ WERROR_FLAGS += -Wno-lto-type-mismatch
endif
endif
-# workaround GCC bug with warning "missing initializer" for "= {0}"
-ifeq ($(shell test $(GCC_VERSION) -lt 47 && echo 1), 1)
+# disable warning for non-initialised fields
WERROR_FLAGS += -Wno-missing-field-initializers
-endif
# workaround GCC bug with warning "may be used uninitialized"
ifeq ($(shell test $(GCC_VERSION) -lt 47 && echo 1), 1)
WERROR_FLAGS += -Wno-uninitialized
--
2.24.1
next reply other threads:[~2020-01-21 14:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-21 14:35 Thomas Monjalon [this message]
2020-01-21 15:55 ` Ferruh Yigit
2020-02-06 2:13 ` Thomas Monjalon
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