Hi Maciej,
On 30.05.2018 09:45, kbuild test robot wrote: > Hi Maciej, > > Thank you for the patch! Perhaps something to improve: > > [auto build test WARNING on next-20180517] > [cannot apply to drm-exynos/exynos-drm/for-next robh/for-next drm/drm-next > v4.17-rc6 v4.17-rc5 v4.17-rc4 v4.17-rc7] > [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/Maciej-Purski/Add-TOSHIBA-TC358764-DSI-LVDS-bridge-driver/20180530-011258 > reproduce: > # apt-get install sparse > make ARCH=x86_64 allmodconfig > make C=1 CF=-D__CHECK_ENDIAN__ > > > sparse warnings: (new ones prefixed by >>) > >>> drivers/gpu/drm/bridge/tc358764.c:193:14: sparse: incorrect type in >>> assignment (different base types) @@ expected unsigned short [unsigned] >>> [addressable] [usertype] addr @@ got ed] [addressable] [usertype] addr @@ > drivers/gpu/drm/bridge/tc358764.c:193:14: expected unsigned short > [unsigned] [addressable] [usertype] addr > drivers/gpu/drm/bridge/tc358764.c:193:14: got restricted __le16 > [usertype] <noident> >>> drivers/gpu/drm/bridge/tc358764.c:197:24: sparse: cast to restricted __le32 >>> drivers/gpu/drm/bridge/tc358764.c:175:5: sparse: symbol 'tc358764_read' was >>> not declared. Should it be static? >>> drivers/gpu/drm/bridge/tc358764.c:204:5: sparse: symbol 'tc358764_write' >>> was not declared. Should it be static? > vim +193 drivers/gpu/drm/bridge/tc358764.c > > 174 > > 175 int tc358764_read(struct tc358764 *ctx, u16 addr, u32 *val) add static > 176 { > 177 struct mipi_dsi_device *dsi = > to_mipi_dsi_device(ctx->dev); > 178 const struct mipi_dsi_host_ops *ops = dsi->host->ops; > 179 struct mipi_dsi_msg msg = { > 180 .type = MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM, > 181 .channel = dsi->channel, > 182 .flags = MIPI_DSI_MSG_USE_LPM, > 183 .tx_buf = &addr, > 184 .tx_len = 2, > 185 .rx_buf = val, > 186 .rx_len = 4 > 187 }; > 188 ssize_t ret; > 189 > 190 if (!ops || !ops->transfer) > 191 return -EINVAL; > 192 > > 193 addr = cpu_to_le16(addr); It should be changed to: cpu_to_le16s(&addr); > 194 > 195 ret = ops->transfer(dsi->host, &msg); > 196 if (ret >= 0) > > 197 *val = le32_to_cpu(*val); le32_to_cpus(val); > 198 > 199 dev_dbg(ctx->dev, "read: %d, addr: %d\n", addr, *val); > 200 > 201 return ret; > 202 } > 203 > > 204 int tc358764_write(struct tc358764 *ctx, u16 addr, u32 val) add static Regards Andrzej > 205 { > 206 struct mipi_dsi_device *dsi = > to_mipi_dsi_device(ctx->dev); > 207 const struct mipi_dsi_host_ops *ops = dsi->host->ops; > 208 u8 data[6]; > 209 int ret; > 210 struct mipi_dsi_msg msg = { > 211 .type = MIPI_DSI_GENERIC_LONG_WRITE, > 212 .channel = dsi->channel, > 213 .flags = MIPI_DSI_MSG_USE_LPM | > MIPI_DSI_MSG_REQ_ACK, > 214 .tx_buf = data, > 215 .tx_len = 6 > 216 }; > 217 > 218 if (!ops || !ops->transfer) > 219 return -EINVAL; > 220 > 221 data[0] = addr; > 222 data[1] = addr >> 8; > 223 data[2] = val; > 224 data[3] = val >> 8; > 225 data[4] = val >> 16; > 226 data[5] = val >> 24; > 227 > 228 ret = ops->transfer(dsi->host, &msg); > 229 > 230 return ret; > 231 } > 232 > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation > > > _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
