Re: [PATCH 1/4] common/dpaax: fix unused variable warning in non-debug build

On Thu, 27 Aug 2026 11:07:50 +0200
David Marchand [off-list ref] wrote:

On Thu, 27 Aug 2026 at 02:00, Stephen Hemminger
[off-list ref] wrote:

quoted

Fix compiler warning on clang-23.

  dpaa_of.c:14:12: warning: variable 'alive' set but not used
        [-Wunused-but-set-global]

The 'alive' flag is only read by DPAAX_HWWARN, which expands to an empty
statement and discards its condition unless RTE_LIBRTE_DPAAX_DEBUG is
defined. Make the empty expansion consume its argument so the condition
is still checked in a non-debug build.

Fixes: 8c83f28cc8a4 ("common/dpaax: move OF library from DPAA bus")  

Not that important, the issue probably predates this commit.
And looking at this change, it seems DPAA_BUS_HWWARN is dead code since then.

That is when the device-tree warning was added.
The history scan looks right.

It seems like it should either be removed as irrelevant or made into
a regular warning. But that is up to Hemant and Sachin to decide;
I just want clean builds for now.