[kbuild-all] [linux-next:master 7482/8423] sound/soc/sh/rz-ssi.c:148:15: sparse: sparse: dereference of noderef expression

tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: b9011c7e671dbbf59bb753283ddfd03f0c9eb865 commit: 03e786bd43410fa93e5d2459f7a43e90ff0ae801 [7482/8423] ASoC: sh: Add RZ/G2L SSIF-2 driver config: arc-randconfig-s031-20210816 (attached as .config) compiler: arceb-elf-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-348-gf0e6938b-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 03e786bd43410fa93e5d2459f7a43e90ff0ae801 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc SHELL=/bin/bash sound/soc/sh/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) sound/soc/sh/rz-ssi.c:317:30: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:317:30: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:335:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:335:30: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:335:30: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:338:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:338:30: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:338:30: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:340:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:340:30: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:340:30: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:343:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:343:30: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:343:30: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:359:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:359:30: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:359:30: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:432:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:432:30: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:432:30: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:488:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:488:30: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:488:30: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:524:46: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:524:46: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:524:46: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:546:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:546:38: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:546:38: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:562:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:562:38: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:562:38: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:563:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct rz_ssi_priv [noderef] __iomem *priv @@ got struct rz_ssi_priv *ssi @@ sound/soc/sh/rz-ssi.c:563:38: sparse: expected struct rz_ssi_priv [noderef] __iomem *priv sound/soc/sh/rz-ssi.c:563:38: sparse: got struct rz_ssi_priv *ssi sound/soc/sh/rz-ssi.c:150:9: sparse: sparse: dereference of noderef expression sound/soc/sh/rz-ssi.c:150:9: sparse: sparse: dereference of noderef expression vim +148 sound/soc/sh/rz-ssi.c 142 143 static void rz_ssi_reg_mask_setl(struct rz_ssi_priv __iomem *priv, uint reg, 144 u32 bclr, u32 bset) 145 { 146 u32 val; 147 149 val = (val & ~bclr) | bset; 150 writel(val, (priv->base + reg)); 151 } 152 153 static inline struct snd_soc_dai * 154 rz_ssi_get_dai(struct snd_pcm_substream *substream) 155 { 156 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 157 158 return asoc_rtd_to_cpu(rtd, 0); 159 } 160 161 static inline bool rz_ssi_stream_is_play(struct rz_ssi_priv *ssi, 162 struct snd_pcm_substream *substream) 163 { 164 return substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 165 } 166 167 static inline struct rz_ssi_stream * 168 rz_ssi_stream_get(struct rz_ssi_priv *ssi, struct snd_pcm_substream *substream) 169 { 170 struct rz_ssi_stream *stream = &ssi->playback; 171 172 if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) 173 stream = &ssi->capture; 174 175 return stream; 176 } 177 178 static int rz_ssi_stream_is_valid(struct rz_ssi_priv *ssi, 179 struct rz_ssi_stream *strm) 180 { 181 unsigned long flags; 182 int ret; 183 184 spin_lock_irqsave(&ssi->lock, flags); 185 ret = !!(strm->substream && strm->substream->runtime); 186 spin_unlock_irqrestore(&ssi->lock, flags); 187 188 return ret; 189 } 190 191 static int rz_ssi_stream_init(struct rz_ssi_priv *ssi, 192 struct rz_ssi_stream *strm, 193 struct snd_pcm_substream *substream) 194 { 195 struct snd_pcm_runtime *runtime = substream->runtime; 196 197 strm->substream = substream; 198 strm->sample_width = samples_to_bytes(runtime, 1); 199 strm->period_counter = 0; 200 strm->buffer_pos = 0; 201 202 strm->oerr_num = 0; 203 strm->uerr_num = 0; 204 strm->running = 0; 205 206 /* fifo init */ 207 strm->fifo_sample_size = SSI_FIFO_DEPTH; 208 209 return 0; 210 } 211 212 static void rz_ssi_stream_quit(struct rz_ssi_priv *ssi, 213 struct rz_ssi_stream *strm) 214 { 215 struct snd_soc_dai *dai = rz_ssi_get_dai(strm->substream); 216 unsigned long flags; 217 218 spin_lock_irqsave(&ssi->lock, flags); 219 strm->substream = NULL; 220 spin_unlock_irqrestore(&ssi->lock, flags); 221 222 if (strm->oerr_num > 0) 223 dev_info(dai->dev, "overrun = %d\n", strm->oerr_num); 224 225 if (strm->uerr_num > 0) 226 dev_info(dai->dev, "underrun = %d\n", strm->uerr_num); 227 } 228 229 static int rz_ssi_clk_setup(struct rz_ssi_priv *ssi, unsigned int rate, 230 unsigned int channels) 231 { 232 static s8 ckdv[16] = { 1, 2, 4, 8, 16, 32, 64, 128, 233 6, 12, 24, 48, 96, -1, -1, -1 }; 234 unsigned int channel_bits = 32; /* System Word Length */ 235 unsigned long bclk_rate = rate * channels * channel_bits; 236 unsigned int div; 237 unsigned int i; 238 u32 ssicr = 0; 239 u32 clk_ckdv; 240 241 /* Clear AUCKE so we can set MST */ 242 rz_ssi_reg_writel(ssi, SSIFCR, 0); 243 244 /* Continue to output LRCK pin even when idle */ 245 rz_ssi_reg_writel(ssi, SSIOFR, SSIOFR_LRCONT); 246 if (ssi->audio_clk_1 && ssi->audio_clk_2) { 247 if (ssi->audio_clk_1 % bclk_rate) 248 ssi->audio_mck = ssi->audio_clk_2; 249 else 250 ssi->audio_mck = ssi->audio_clk_1; 251 } 252 253 /* Clock setting */ 254 ssicr |= SSICR_MST; 255 if (ssi->audio_mck == ssi->audio_clk_1) 256 ssicr |= SSICR_CKS; 257 if (ssi->bckp_rise) 258 ssicr |= SSICR_BCKP; 259 if (ssi->lrckp_fsync_fall) 260 ssicr |= SSICR_LRCKP; 261 262 /* Determine the clock divider */ 263 clk_ckdv = 0; 264 div = ssi->audio_mck / bclk_rate; 265 /* try to find an match */ 266 for (i = 0; i < ARRAY_SIZE(ckdv); i++) { 267 if (ckdv[i] == div) { 268 clk_ckdv = i; 269 break; 270 } 271 } 272 273 if (i == ARRAY_SIZE(ckdv)) { 274 dev_err(ssi->dev, "Rate not divisible by audio clock source\n"); 275 return -EINVAL; 276 } 277 278 /* 279 * DWL: Data Word Length = 16 bits 280 * SWL: System Word Length = 32 bits 281 */ 282 ssicr |= SSICR_CKDV(clk_ckdv); 283 ssicr |= SSICR_DWL(1) | SSICR_SWL(3); 284 rz_ssi_reg_writel(ssi, SSICR, ssicr); 285 rz_ssi_reg_writel(ssi, SSIFCR, 286 (SSIFCR_AUCKE | SSIFCR_TFRST | SSIFCR_RFRST)); 287 288 return 0; 289 } 290 291 static int rz_ssi_start(struct rz_ssi_priv *ssi, struct rz_ssi_stream *strm) 292 { 293 bool is_play = rz_ssi_stream_is_play(ssi, strm->substream); 294 u32 ssicr, ssifcr; 295 296 ssicr = rz_ssi_reg_readl(ssi, SSICR); 297 ssifcr = rz_ssi_reg_readl(ssi, SSIFCR) & ~0xF; 298 299 /* FIFO interrupt thresholds */ 300 rz_ssi_reg_writel(ssi, SSISCR, 301 SSISCR_TDES(strm->fifo_sample_size / 2 - 1) | 302 SSISCR_RDFS(0)); 303 304 /* enable IRQ */ 305 if (is_play) { 306 ssicr |= SSICR_TUIEN | SSICR_TOIEN; 307 ssifcr |= SSIFCR_TIE | SSIFCR_RFRST; 308 } else { 309 ssicr |= SSICR_RUIEN | SSICR_ROIEN; 310 ssifcr |= SSIFCR_RIE | SSIFCR_TFRST; 311 } 312 313 rz_ssi_reg_writel(ssi, SSICR, ssicr); 314 rz_ssi_reg_writel(ssi, SSIFCR, ssifcr); 315 316 /* Clear all error flags */ 318 (SSISR_TOIRQ | SSISR_TUIRQ | SSISR_ROIRQ | 319 SSISR_RUIRQ), 0); 320 321 strm->running = 1; 322 ssicr |= is_play ? SSICR_TEN : SSICR_REN; 323 rz_ssi_reg_writel(ssi, SSICR, ssicr); 324 325 return 0; 326 } 327 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org