drivers/firmware/meson/meson_sm.c:170:17: sparse: sparse: incorrect type in argument 2 (different address spaces)

From: kernel test robot
Date: Mon Aug 10 2020 - 10:33:03 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: fc80c51fd4b23ec007e88d4c688f2cac1b8648e7
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date: 8 weeks ago
config: arm64-randconfig-s032-20200810 (attached as .config)
compiler: aarch64-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: v0.6.2-141-g19506bc2-dirty
git checkout 670d0a4b10704667765f7d18f7592993d02783aa
# 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=arm64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

sparse warnings: (new ones prefixed by >>)

drivers/firmware/meson/meson_sm.c:85:24: sparse: sparse: Using plain integer as NULL pointer
>> drivers/firmware/meson/meson_sm.c:170:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const * @@ got void [noderef] __iomem *sm_shmem_out_base @@
drivers/firmware/meson/meson_sm.c:170:17: sparse: expected void const *
drivers/firmware/meson/meson_sm.c:170:17: sparse: got void [noderef] __iomem *sm_shmem_out_base
>> drivers/firmware/meson/meson_sm.c:206:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got void [noderef] __iomem *sm_shmem_in_base @@
drivers/firmware/meson/meson_sm.c:206:9: sparse: expected void *
drivers/firmware/meson/meson_sm.c:206:9: sparse: got void [noderef] __iomem *sm_shmem_in_base

vim +170 drivers/firmware/meson/meson_sm.c

2c4ddb215521d5 Carlo Caione 2016-08-27 124
2c4ddb215521d5 Carlo Caione 2016-08-27 125 /**
2c4ddb215521d5 Carlo Caione 2016-08-27 126 * meson_sm_call_read - retrieve data from secure-monitor
2c4ddb215521d5 Carlo Caione 2016-08-27 127 *
8cde3c2153e8f5 Carlo Caione 2019-07-31 128 * @fw: Pointer to secure-monitor firmware
2c4ddb215521d5 Carlo Caione 2016-08-27 129 * @buffer: Buffer to store the retrieved data
83e007a0c6a3f4 Carlo Caione 2017-03-03 130 * @bsize: Size of the buffer
2c4ddb215521d5 Carlo Caione 2016-08-27 131 * @cmd_index: Index of the SMC32 function ID
2c4ddb215521d5 Carlo Caione 2016-08-27 132 * @arg0: SMC32 Argument 0
2c4ddb215521d5 Carlo Caione 2016-08-27 133 * @arg1: SMC32 Argument 1
2c4ddb215521d5 Carlo Caione 2016-08-27 134 * @arg2: SMC32 Argument 2
2c4ddb215521d5 Carlo Caione 2016-08-27 135 * @arg3: SMC32 Argument 3
2c4ddb215521d5 Carlo Caione 2016-08-27 136 * @arg4: SMC32 Argument 4
2c4ddb215521d5 Carlo Caione 2016-08-27 137 *
2c4ddb215521d5 Carlo Caione 2016-08-27 138 * Return: size of read data on success, a negative value on error
7a9bc330df9b8f Carlo Caione 2017-03-03 139 * When 0 is returned there is no guarantee about the amount of
7a9bc330df9b8f Carlo Caione 2017-03-03 140 * data read and bsize bytes are copied in buffer.
2c4ddb215521d5 Carlo Caione 2016-08-27 141 */
8cde3c2153e8f5 Carlo Caione 2019-07-31 142 int meson_sm_call_read(struct meson_sm_firmware *fw, void *buffer,
8cde3c2153e8f5 Carlo Caione 2019-07-31 143 unsigned int bsize, unsigned int cmd_index, u32 arg0,
8cde3c2153e8f5 Carlo Caione 2019-07-31 144 u32 arg1, u32 arg2, u32 arg3, u32 arg4)
2c4ddb215521d5 Carlo Caione 2016-08-27 145 {
2c4ddb215521d5 Carlo Caione 2016-08-27 146 u32 size;
7a9bc330df9b8f Carlo Caione 2017-03-03 147 int ret;
2c4ddb215521d5 Carlo Caione 2016-08-27 148
8cde3c2153e8f5 Carlo Caione 2019-07-31 149 if (!fw->chip)
2c4ddb215521d5 Carlo Caione 2016-08-27 150 return -ENOENT;
2c4ddb215521d5 Carlo Caione 2016-08-27 151
8cde3c2153e8f5 Carlo Caione 2019-07-31 152 if (!fw->chip->cmd_shmem_out_base)
2c4ddb215521d5 Carlo Caione 2016-08-27 153 return -EINVAL;
2c4ddb215521d5 Carlo Caione 2016-08-27 154
8cde3c2153e8f5 Carlo Caione 2019-07-31 155 if (bsize > fw->chip->shmem_size)
83e007a0c6a3f4 Carlo Caione 2017-03-03 156 return -EINVAL;
83e007a0c6a3f4 Carlo Caione 2017-03-03 157
8cde3c2153e8f5 Carlo Caione 2019-07-31 158 if (meson_sm_call(fw, cmd_index, &size, arg0, arg1, arg2, arg3, arg4) < 0)
2c4ddb215521d5 Carlo Caione 2016-08-27 159 return -EINVAL;
2c4ddb215521d5 Carlo Caione 2016-08-27 160
7a9bc330df9b8f Carlo Caione 2017-03-03 161 if (size > bsize)
2c4ddb215521d5 Carlo Caione 2016-08-27 162 return -EINVAL;
2c4ddb215521d5 Carlo Caione 2016-08-27 163
7a9bc330df9b8f Carlo Caione 2017-03-03 164 ret = size;
7a9bc330df9b8f Carlo Caione 2017-03-03 165
7a9bc330df9b8f Carlo Caione 2017-03-03 166 if (!size)
7a9bc330df9b8f Carlo Caione 2017-03-03 167 size = bsize;
7a9bc330df9b8f Carlo Caione 2017-03-03 168
2c4ddb215521d5 Carlo Caione 2016-08-27 169 if (buffer)
8cde3c2153e8f5 Carlo Caione 2019-07-31 @170 memcpy(buffer, fw->sm_shmem_out_base, size);
2c4ddb215521d5 Carlo Caione 2016-08-27 171
7a9bc330df9b8f Carlo Caione 2017-03-03 172 return ret;
2c4ddb215521d5 Carlo Caione 2016-08-27 173 }
2c4ddb215521d5 Carlo Caione 2016-08-27 174 EXPORT_SYMBOL(meson_sm_call_read);
2c4ddb215521d5 Carlo Caione 2016-08-27 175
2c4ddb215521d5 Carlo Caione 2016-08-27 176 /**
2c4ddb215521d5 Carlo Caione 2016-08-27 177 * meson_sm_call_write - send data to secure-monitor
2c4ddb215521d5 Carlo Caione 2016-08-27 178 *
8cde3c2153e8f5 Carlo Caione 2019-07-31 179 * @fw: Pointer to secure-monitor firmware
2c4ddb215521d5 Carlo Caione 2016-08-27 180 * @buffer: Buffer containing data to send
2c4ddb215521d5 Carlo Caione 2016-08-27 181 * @size: Size of the data to send
2c4ddb215521d5 Carlo Caione 2016-08-27 182 * @cmd_index: Index of the SMC32 function ID
2c4ddb215521d5 Carlo Caione 2016-08-27 183 * @arg0: SMC32 Argument 0
2c4ddb215521d5 Carlo Caione 2016-08-27 184 * @arg1: SMC32 Argument 1
2c4ddb215521d5 Carlo Caione 2016-08-27 185 * @arg2: SMC32 Argument 2
2c4ddb215521d5 Carlo Caione 2016-08-27 186 * @arg3: SMC32 Argument 3
2c4ddb215521d5 Carlo Caione 2016-08-27 187 * @arg4: SMC32 Argument 4
2c4ddb215521d5 Carlo Caione 2016-08-27 188 *
2c4ddb215521d5 Carlo Caione 2016-08-27 189 * Return: size of sent data on success, a negative value on error
2c4ddb215521d5 Carlo Caione 2016-08-27 190 */
8cde3c2153e8f5 Carlo Caione 2019-07-31 191 int meson_sm_call_write(struct meson_sm_firmware *fw, void *buffer,
8cde3c2153e8f5 Carlo Caione 2019-07-31 192 unsigned int size, unsigned int cmd_index, u32 arg0,
8cde3c2153e8f5 Carlo Caione 2019-07-31 193 u32 arg1, u32 arg2, u32 arg3, u32 arg4)
2c4ddb215521d5 Carlo Caione 2016-08-27 194 {
2c4ddb215521d5 Carlo Caione 2016-08-27 195 u32 written;
2c4ddb215521d5 Carlo Caione 2016-08-27 196
8cde3c2153e8f5 Carlo Caione 2019-07-31 197 if (!fw->chip)
2c4ddb215521d5 Carlo Caione 2016-08-27 198 return -ENOENT;
2c4ddb215521d5 Carlo Caione 2016-08-27 199
8cde3c2153e8f5 Carlo Caione 2019-07-31 200 if (size > fw->chip->shmem_size)
2c4ddb215521d5 Carlo Caione 2016-08-27 201 return -EINVAL;
2c4ddb215521d5 Carlo Caione 2016-08-27 202
8cde3c2153e8f5 Carlo Caione 2019-07-31 203 if (!fw->chip->cmd_shmem_in_base)
2c4ddb215521d5 Carlo Caione 2016-08-27 204 return -EINVAL;
2c4ddb215521d5 Carlo Caione 2016-08-27 205
8cde3c2153e8f5 Carlo Caione 2019-07-31 @206 memcpy(fw->sm_shmem_in_base, buffer, size);
2c4ddb215521d5 Carlo Caione 2016-08-27 207
8cde3c2153e8f5 Carlo Caione 2019-07-31 208 if (meson_sm_call(fw, cmd_index, &written, arg0, arg1, arg2, arg3, arg4) < 0)
2c4ddb215521d5 Carlo Caione 2016-08-27 209 return -EINVAL;
2c4ddb215521d5 Carlo Caione 2016-08-27 210
2c4ddb215521d5 Carlo Caione 2016-08-27 211 if (!written)
2c4ddb215521d5 Carlo Caione 2016-08-27 212 return -EINVAL;
2c4ddb215521d5 Carlo Caione 2016-08-27 213
2c4ddb215521d5 Carlo Caione 2016-08-27 214 return written;
2c4ddb215521d5 Carlo Caione 2016-08-27 215 }
2c4ddb215521d5 Carlo Caione 2016-08-27 216 EXPORT_SYMBOL(meson_sm_call_write);
2c4ddb215521d5 Carlo Caione 2016-08-27 217

:::::: The code at line 170 was first introduced by commit
:::::: 8cde3c2153e8f57be884c0e73f18bc4de150e870 firmware: meson_sm: Rework driver as a proper platform driver

:::::: TO: Carlo Caione <ccaione@xxxxxxxxxxxx>
:::::: CC: Kevin Hilman <khilman@xxxxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip

Next message: Horia Geantă: "Re: [PATCH 19/22] crypto: inside-secure - add check for xts input length equal to zero"
Previous message: Walter Wu: "Re: [PATCH 0/5] kasan: add workqueue and timer stack for generic KASAN"
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