Hi M'boumba, [auto build test WARNING on wsa/i2c/for-next] [also build test WARNING on v4.9-rc8 next-20161208] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/M-boumba-Cedric-Madianga/Add-support-for-the-STM32F4-I2C/20161208-173240 base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) include/linux/compiler.h:253:8: sparse: attribute 'no_sanitize_address': unknown attribute >> drivers/i2c/busses/i2c-stm32f4.c:201:16: sparse: incompatible types in comparison expression (different signedness) >> drivers/i2c/busses/i2c-stm32f4.c:201:16: sparse: incompatible types in comparison expression (different signedness) >> drivers/i2c/busses/i2c-stm32f4.c:201:16: sparse: incompatible types in comparison expression (different signedness) In file included from include/linux/clk.h:16:0, from drivers/i2c/busses/i2c-stm32f4.c:12: drivers/i2c/busses/i2c-stm32f4.c: In function 'stm32f4_i2c_set_periph_clk_freq': include/linux/kernel.h:749:16: warning: comparison of distinct pointer types lacks a cast (void) (&max1 == &max2); \ ^ include/linux/kernel.h:737:2: note: in definition of macro '__min' t1 min1 = (x); \ ^~ include/linux/kernel.h:778:28: note: in expansion of macro 'min' #define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) ^~~ include/linux/kernel.h:752:2: note: in expansion of macro '__max' __max(typeof(x), typeof(y), \ ^~~~~ include/linux/kernel.h:778:45: note: in expansion of macro 'max' #define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) ^~~ drivers/i2c/busses/i2c-stm32f4.c:201:9: note: in expansion of macro 'clamp' freq = clamp(freq, STM32F4_I2C_MIN_FREQ, STM32F4_I2C_MAX_FREQ); ^~~~~ include/linux/kernel.h:749:16: warning: comparison of distinct pointer types lacks a cast (void) (&max1 == &max2); \ ^ include/linux/kernel.h:737:13: note: in definition of macro '__min' t1 min1 = (x); \ ^ include/linux/kernel.h:778:28: note: in expansion of macro 'min' #define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) ^~~ include/linux/kernel.h:752:2: note: in expansion of macro '__max' __max(typeof(x), typeof(y), \ ^~~~~ include/linux/kernel.h:778:45: note: in expansion of macro 'max' #define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) ^~~ drivers/i2c/busses/i2c-stm32f4.c:201:9: note: in expansion of macro 'clamp' freq = clamp(freq, STM32F4_I2C_MIN_FREQ, STM32F4_I2C_MAX_FREQ); ^~~~~ include/linux/kernel.h:739:16: warning: comparison of distinct pointer types lacks a cast (void) (&min1 == &min2); \ ^ include/linux/kernel.h:742:2: note: in expansion of macro '__min' __min(typeof(x), typeof(y), \ ^~~~~ include/linux/kernel.h:778:28: note: in expansion of macro 'min' #define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) ^~~ drivers/i2c/busses/i2c-stm32f4.c:201:9: note: in expansion of macro 'clamp' freq = clamp(freq, STM32F4_I2C_MIN_FREQ, STM32F4_I2C_MAX_FREQ); ^~~~~ vim +201 drivers/i2c/busses/i2c-stm32f4.c 185 186 static void stm32f4_i2c_disable_it(struct stm32f4_i2c_dev *i2c_dev) 187 { 188 void __iomem *reg = i2c_dev->base + STM32F4_I2C_CR2; 189 190 stm32f4_i2c_clr_bits(reg, STM32F4_I2C_CR2_IRQ_MASK); 191 } 192 193 static void stm32f4_i2c_set_periph_clk_freq(struct stm32f4_i2c_dev *i2c_dev) 194 { 195 u32 clk_rate, cr2, freq; 196 197 cr2 = readl_relaxed(i2c_dev->base + STM32F4_I2C_CR2); 198 cr2 &= ~STM32F4_I2C_CR2_FREQ_MASK; 199 clk_rate = clk_get_rate(i2c_dev->clk); 200 freq = clk_rate / MHZ_TO_HZ; > 201 freq = clamp(freq, STM32F4_I2C_MIN_FREQ, STM32F4_I2C_MAX_FREQ); 202 cr2 |= STM32F4_I2C_CR2_FREQ(freq); 203 writel_relaxed(cr2, i2c_dev->base + STM32F4_I2C_CR2); 204 } 205 206 static void stm32f4_i2c_set_rise_time(struct stm32f4_i2c_dev *i2c_dev) 207 { 208 u32 trise, freq, cr2, val; 209 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
