Hi Grant, After merging the rcu tree, today's linux-next build (x86_64 allmodconfig) produced this warning: drivers/spi/spi_topcliff_pch.c: In function 'pch_spi_process_messages': drivers/spi/spi_topcliff_pch.c:752: warning: 'data' is used uninitialized in this function and, indeed it is ... -- Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/