[PATCH v2] drivers: disable comma warnings selectively

[Bruce Richardson <bruce.richardson@intel.com>]

Rather than disabling -Wcomma for all drivers, only disable it on a
case-by-case basis for drivers that need it disabled. Use a variable to
do so, to avoid issues with compilers like MSVC that don't support the
-Wno-comma flag.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
V2: resubmit now that dependent patches have hit main
---
 config/meson.build                 | 6 ++++++
 drivers/meson.build                | 2 +-
 drivers/net/axgbe/meson.build      | 4 +++-
 drivers/net/bnxt/meson.build       | 1 +
 drivers/net/gve/meson.build        | 1 +
 drivers/raw/ifpga/base/meson.build | 1 +
 6 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/config/meson.build b/config/meson.build
index 02e2798cca..9ba7b9a338 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -367,6 +367,12 @@ if cc.has_argument('-Wno-shadow')
     no_shadow_cflag = '-Wno-shadow'
 endif
 
+# per-driver option to disable -Wcomma if supported by the compiler
+no_comma_cflag = []
+if cc.has_argument('-Wno-comma')
+    no_comma_cflag = '-Wno-comma'
+endif
+
 foreach arg: global_cflags
     if cc.has_argument(arg)
         add_project_arguments(arg, language: 'c')
diff --git a/drivers/meson.build b/drivers/meson.build
index 3fe3be48fb..6ae102e943 100644
--- a/drivers/meson.build
+++ b/drivers/meson.build
@@ -86,7 +86,7 @@ default_cflags = machine_args
 default_cflags += ['-DALLOW_EXPERIMENTAL_API']
 default_cflags += ['-DALLOW_INTERNAL_API']
 
-warning_disable_cflags = ['-Wno-format-truncation', '-Wno-address-of-packed-member', '-Wno-comma']
+warning_disable_cflags = ['-Wno-format-truncation', '-Wno-address-of-packed-member']
 foreach cflag:warning_disable_cflags
     if cc.has_argument(cflag)
         default_cflags += cflag
diff --git a/drivers/net/axgbe/meson.build b/drivers/net/axgbe/meson.build
index 5a14549317..1aa523a749 100644
--- a/drivers/net/axgbe/meson.build
+++ b/drivers/net/axgbe/meson.build
@@ -15,7 +15,9 @@ sources = files(
         'axgbe_rxtx.c',
 )
 
-cflags += ['-Wno-cast-qual', no_shadow_cflag]
+cflags += ['-Wno-cast-qual']
+cflags += no_shadow_cflag
+cflags += no_comma_cflag
 
 if arch_subdir == 'x86'
     sources += files('axgbe_rxtx_vec_sse.c')
diff --git a/drivers/net/bnxt/meson.build b/drivers/net/bnxt/meson.build
index dc122fb3df..e13aa4e341 100644
--- a/drivers/net/bnxt/meson.build
+++ b/drivers/net/bnxt/meson.build
@@ -14,6 +14,7 @@ endif
 
 cflags += no_wvla_cflag
 cflags += no_shadow_cflag
+cflags += no_comma_cflag
 
 headers = files('rte_pmd_bnxt.h')
 cflags_options = [
diff --git a/drivers/net/gve/meson.build b/drivers/net/gve/meson.build
index add431c2bb..b5d67ee490 100644
--- a/drivers/net/gve/meson.build
+++ b/drivers/net/gve/meson.build
@@ -20,3 +20,4 @@ sources = files(
 includes += include_directories('base')
 
 cflags += no_wvla_cflag
+cflags += no_comma_cflag
diff --git a/drivers/raw/ifpga/base/meson.build b/drivers/raw/ifpga/base/meson.build
index efebff94e9..225bde052b 100644
--- a/drivers/raw/ifpga/base/meson.build
+++ b/drivers/raw/ifpga/base/meson.build
@@ -24,3 +24,4 @@ base_sources = files(
         'opae_at24_eeprom.c',
         'opae_eth_group.c',
 )
+base_cflags += no_comma_cflag
-- 
2.51.0