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Message-ID: <202101200917.8uN8YCo8-lkp@intel.com>
Date: Wed, 20 Jan 2021 09:05:28 +0800
From: kernel test robot <lkp@...el.com>
To: Rich Felker <dalias@...c.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: sound/soc/uniphier/aio-compress.c:295:23: sparse: sparse: incorrect
type in argument 1 (different address spaces)
Hi Rich,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 1e2a199f6ccdc15cf111d68d212e2fd4ce65682e
commit: ca6345de57a46ba1bd35bd15b0ceb42e05b3d71f sh: remove spurious circular inclusion from asm/smp.h
date: 4 months ago
config: sh-randconfig-s031-20210120 (attached as .config)
compiler: sh4-linux-gcc (GCC) 9.3.0
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: v0.6.3-208-g46a52ca4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca6345de57a46ba1bd35bd15b0ceb42e05b3d71f
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout ca6345de57a46ba1bd35bd15b0ceb42e05b3d71f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=sh
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
"sparse warnings: (new ones prefixed by >>)"
sound/soc/uniphier/aio-compress.c:295:23: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int const *__gu_addr @@ got unsigned int [noderef] [usertype] __user * @@
sound/soc/uniphier/aio-compress.c:295:23: sparse: expected unsigned int const *__gu_addr
sound/soc/uniphier/aio-compress.c:295:23: sparse: got unsigned int [noderef] [usertype] __user *
>> sound/soc/uniphier/aio-compress.c:295:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got unsigned int const *__gu_addr @@
sound/soc/uniphier/aio-compress.c:295:23: sparse: expected void const volatile [noderef] __user *ptr
sound/soc/uniphier/aio-compress.c:295:23: sparse: got unsigned int const *__gu_addr
sound/soc/uniphier/aio-compress.c:309:34: sparse: sparse: cast to restricted __be16
sound/soc/uniphier/aio-compress.c:309:34: sparse: sparse: cast to restricted __be16
sound/soc/uniphier/aio-compress.c:309:34: sparse: sparse: cast to restricted __be16
sound/soc/uniphier/aio-compress.c:309:34: sparse: sparse: cast to restricted __be16
vim +295 sound/soc/uniphier/aio-compress.c
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 285
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 286 static int aio_compr_send_to_hw(struct uniphier_aio_sub *sub,
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 287 char __user *buf, size_t dstsize)
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 288 {
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 289 u32 __user *srcbuf = (u32 __user *)buf;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 290 u32 *dstbuf = (u32 *)(sub->compr_area + sub->wr_offs);
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 291 int src = 0, dst = 0, ret;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 292 u32 frm, frm_a, frm_b;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 293
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 294 while (dstsize > 0) {
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 @295 ret = get_user(frm, srcbuf + src);
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 296 if (ret)
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 297 return ret;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 298 src++;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 299
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 300 frm_a = frm & 0xffff;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 301 frm_b = (frm >> 16) & 0xffff;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 302
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 303 if (frm == IEC61937_HEADER_SIGN) {
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 304 frm_a |= 0x01000000;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 305
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 306 /* Next data is Pc and Pd */
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 307 sub->iec_header = true;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 308 } else {
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 309 u16 pc = be16_to_cpu((__be16)frm_a);
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 310
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 311 if (sub->iec_header && sub->iec_pc != pc) {
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 312 /* Force overwrite IEC frame type */
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 313 sub->iec_pc = pc;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 314 ret = aio_oport_set_stream_type(sub, pc);
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 315 if (ret)
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 316 return ret;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 317 }
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 318 sub->iec_header = false;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 319 }
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 320 dstbuf[dst++] = frm_a;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 321 dstbuf[dst++] = frm_b;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 322
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 323 dstsize -= sizeof(u32) * 2;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 324 }
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 325
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 326 return 0;
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 327 }
e98131222ff931a6 Katsuhiro Suzuki 2018-01-19 328
:::::: The code at line 295 was first introduced by commit
:::::: e98131222ff931a670739cede00d1fb9d6f83763 ASoC: uniphier: add support for UniPhier AIO compress audio
:::::: TO: Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>
:::::: CC: Mark Brown <broonie@...nel.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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