Hi Luis, [auto build test WARNING on spi/for-next -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Luis-de-Bethencourt/spi-kconfig-When-possible-compile-drivers-with-COMPILE_TEST/20151015-014349 config: openrisc-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=openrisc Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/spi/spi-davinci.c: In function 'davinci_spi_chipselect': >> drivers/spi/spi-davinci.c:219:6: warning: 'gpio' may be used uninitialized in this function vim +/gpio +219 drivers/spi/spi-davinci.c 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 203 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 204 v &= ~bits; 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 205 iowrite32(v, addr); 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 206 } 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 207 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 208 /* 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 209 * Interface to control the chip select signal 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 210 */ 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 211 static void davinci_spi_chipselect(struct spi_device *spi, int value) 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 212 { 212d4b69 drivers/spi/davinci_spi.c Sekhar Nori 2010-10-11 213 struct davinci_spi *dspi; 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 214 struct davinci_spi_platform_data *pdata; 365a7bb3 drivers/spi/spi-davinci.c Murali Karicheri 2014-09-16 215 struct davinci_spi_config *spicfg = spi->controller_data; 7978b8c3 drivers/spi/davinci_spi.c Brian Niebuhr 2010-08-13 216 u8 chip_sel = spi->chip_select; 212d4b69 drivers/spi/davinci_spi.c Sekhar Nori 2010-10-11 217 u16 spidat1 = CS_DEFAULT; 23853973 drivers/spi/davinci_spi.c Brian Niebuhr 2010-08-13 218 bool gpio_chipsel = false; a88e34ea drivers/spi/spi-davinci.c Murali Karicheri 2014-08-01 @219 int gpio; 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 220 212d4b69 drivers/spi/davinci_spi.c Sekhar Nori 2010-10-11 221 dspi = spi_master_get_devdata(spi->master); aae7147d drivers/spi/spi-davinci.c Murali Karicheri 2012-12-11 222 pdata = &dspi->pdata; 358934a6 drivers/spi/davinci_spi.c Sandeep Paulraj 2009-12-16 223 c0600140 drivers/spi/spi-davinci.c Grygorii Strashko 2014-08-01 224 if (spi->cs_gpio >= 0) { a88e34ea drivers/spi/spi-davinci.c Murali Karicheri 2014-08-01 225 /* SPI core parse and update master->cs_gpio */ 23853973 drivers/spi/davinci_spi.c Brian Niebuhr 2010-08-13 226 gpio_chipsel = true; a88e34ea drivers/spi/spi-davinci.c Murali Karicheri 2014-08-01 227 gpio = spi->cs_gpio; :::::: The code at line 219 was first introduced by commit :::::: a88e34ea213e1bdbd9b2dfca1e1e5fa68b9649a0 spi: davinci: add support to configure gpio cs through dt :::::: TO: Murali Karicheri <m-karicheri2@xxxxxx> :::::: CC: Mark Brown <broonie@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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