[PATCH v2 0/4] fix clang 23 unused but set warnings

[Stephen Hemminger <stephen@networkplumber.org>]

Clang 23 adds -Wunused-but-set-global, which reports file scope
variables that are assigned but never read. It is enabled by -Wall and
does not appear with gcc or with clang 20 through 22.

Three of these are dead variables and are simply removed. The fourth,
'alive' in dpaa_of.c, is a real debug aid: it is only read by
DPAAX_HWWARN, which discards its condition when RTE_LIBRTE_DPAAX_DEBUG
is not defined. That one is fixed by making the empty expansion consume
its argument, which keeps the condition compiled in both builds and
covers every other DPAAX_HWWARN user as well.

v2 - remove more unused code as suggested.

Stephen Hemminger (4):
  common/dpaax: fix unused variable warning in non-debug build
  bus/dpaa: remove unused qman_clk variable
  common/zsda: remove unused device counter
  net/qede: remove unused app version variable

 drivers/bus/dpaa/base/qbman/qman_driver.c |  4 ----
 drivers/common/dpaax/dpaax_logs.h         |  3 ++-
 drivers/common/zsda/zsda_device.c         |  5 -----
 drivers/net/qede/qede_debug.c             | 20 --------------------
 4 files changed, 2 insertions(+), 30 deletions(-)

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2.53.0