Re: [dpdk-dev] [EXT] Re: [PATCH v2 1/1] net/octeontx: fix meson build for disabled octeontx drivers

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

On Tue, Mar 03, 2020 at 03:10:56AM +0000, Amit Gupta wrote:
> 
> > -----Original Message-----
> > From: Bruce Richardson <bruce.richardson@intel.com>
> > Sent: Monday, March 2, 2020 4:23 PM
> > To: Amit Gupta <agupta3@marvell.com>
> > Cc: Harman Kalra <hkalra@marvell.com>; dev@dpdk.org; stable@dpdk.org
> > Subject: [EXT] Re: [dpdk-dev] [PATCH v2 1/1] net/octeontx: fix meson build
> > for disabled octeontx drivers
> > 
> > External Email
> > 
> > ----------------------------------------------------------------------
> > On Mon, Mar 02, 2020 at 12:01:55PM +0530, agupta3@marvell.com wrote:
> > > From: Amit Gupta <agupta3@marvell.com>
> > >
> > > Add a additional condition to check if all required internal
> > > dependencies are met before building octeontx drivers using meson.
> > >
> > > Bugzilla ID: 387
> > >
> > > Fixes: 7f615033d64f ("drivers/net: build Cavium NIC PMDs with meson")
> > >
> > > Signed-off-by: Amit Gupta <agupta3@marvell.com>
> > > ---
> > > v2:
> > >  - rebased to v20.02
> > >  - upstream comments incorporated.
> > >
> > >  drivers/net/octeontx/base/meson.build | 6 +++++-
> > >  1 file changed, 5 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/net/octeontx/base/meson.build
> > > b/drivers/net/octeontx/base/meson.build
> > > index a06a2c8..035aeda 100644
> > > --- a/drivers/net/octeontx/base/meson.build
> > > +++ b/drivers/net/octeontx/base/meson.build
> > > @@ -10,7 +10,11 @@ sources = [
> > >  depends = ['ethdev', 'mempool_octeontx']  static_objs = []  foreach
> > > d: depends
> > > -	static_objs += [get_variable('static_rte_' + d)]
> > > +	test_dep_obj = '@0@'.format(get_variable('static_rte_' + d, ''))
> > > +	if test_dep_obj == ''
> > > +		subdir_done()
> > > +	endif
> > > +	static_objs += get_variable('static_rte_' + d)
> > >  endforeach
> > 
> > very minor nit - you can use "test_dep_obj" here rather than calling
> > get_variable twice.
> > 
> test_dep_obj is being formatted as string object, so can't be used as static obj..

Apologies, you are quite right, I missed that.

One final suggestion - the "is_variable" function is probably want you want
rather than using get_variable with a fallback. It should save the use of a
temporary variable completely.

/Bruce