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

Stephen Rothwell
2020-01-15T02:23:29Z

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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.