linux-kernel - linux-next: build warning after merge of the spi tree

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Date:   Wed, 15 Jan 2020 13:23:25 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Mark Brown <broonie@...nel.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jean Pihet <jean.pihet@...oldbits.com>
Subject: linux-next: build warning after merge of the spi tree

Hi all,

After merging the spi tree, today's linux-next build (x86_64 allmodconfig)
produced this warning:

drivers/spi/spi-ti-qspi.c: In function 'ti_qspi_start_transfer_one':
drivers/spi/spi-ti-qspi.c:392:8: warning: 'rx_wlen' may be used uninitialized in this function [-Wmaybe-uninitialized]
  392 |     if (rx_wlen >= 32)
      |        ^
drivers/spi/spi-ti-qspi.c:318:12: note: 'rx_wlen' was declared here
  318 |  u8 rxlen, rx_wlen;
      |            ^~~~~~~

Introduced by commit

  e7cc5cfbea4c ("spi: spi-ti-qspi: optimize byte-transfers")

Looks like it may be a false positive.

-- 
Cheers,
Stephen Rothwell

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