tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 35e884f89df4c48566d745dc5a97a0d058d04263 commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 2 weeks ago config: ia64-randconfig-s031-20200705 (attached as .config) compiler: ia64-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: v0.6.2-3-gfa153962-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=ia64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/soc/qcom/smd-rpm.c:177:47: sparse: sparse: incorrect type in
>> argument 2 (different address spaces) @@ expected void const volatile
>> [noderef] __iomem *src @@ got unsigned char const * @@
>> drivers/soc/qcom/smd-rpm.c:177:47: sparse: expected void const volatile
>> [noderef] __iomem *src
drivers/soc/qcom/smd-rpm.c:177:47: sparse: got unsigned char const *
vim +177 drivers/soc/qcom/smd-rpm.c
936f14cf4e6716 Bjorn Andersson 2015-07-27 146
5052de8deff561 Bjorn Andersson 2017-03-27 147 static int
qcom_smd_rpm_callback(struct rpmsg_device *rpdev,
5052de8deff561 Bjorn Andersson 2017-03-27 148
void *data,
5052de8deff561 Bjorn Andersson 2017-03-27 149
int count,
5052de8deff561 Bjorn Andersson 2017-03-27 150
void *priv,
5052de8deff561 Bjorn Andersson 2017-03-27 151
u32 addr)
936f14cf4e6716 Bjorn Andersson 2015-07-27 152 {
936f14cf4e6716 Bjorn Andersson 2015-07-27 153 const struct
qcom_rpm_header *hdr = data;
30b7ea5eda0afb Stephen Boyd 2015-09-02 154 size_t hdr_length =
le32_to_cpu(hdr->length);
936f14cf4e6716 Bjorn Andersson 2015-07-27 155 const struct
qcom_rpm_message *msg;
5052de8deff561 Bjorn Andersson 2017-03-27 156 struct qcom_smd_rpm
*rpm = dev_get_drvdata(&rpdev->dev);
936f14cf4e6716 Bjorn Andersson 2015-07-27 157 const u8 *buf = data +
sizeof(struct qcom_rpm_header);
30b7ea5eda0afb Stephen Boyd 2015-09-02 158 const u8 *end = buf +
hdr_length;
936f14cf4e6716 Bjorn Andersson 2015-07-27 159 char msgbuf[32];
936f14cf4e6716 Bjorn Andersson 2015-07-27 160 int status = 0;
30b7ea5eda0afb Stephen Boyd 2015-09-02 161 u32 len, msg_length;
936f14cf4e6716 Bjorn Andersson 2015-07-27 162
30b7ea5eda0afb Stephen Boyd 2015-09-02 163 if
(le32_to_cpu(hdr->service_type) != RPM_SERVICE_TYPE_REQUEST ||
30b7ea5eda0afb Stephen Boyd 2015-09-02 164 hdr_length <
sizeof(struct qcom_rpm_message)) {
b853cb9628bfbc Bjorn Andersson 2016-03-28 165
dev_err(rpm->dev, "invalid request\n");
936f14cf4e6716 Bjorn Andersson 2015-07-27 166 return 0;
936f14cf4e6716 Bjorn Andersson 2015-07-27 167 }
936f14cf4e6716 Bjorn Andersson 2015-07-27 168
936f14cf4e6716 Bjorn Andersson 2015-07-27 169 while (buf < end) {
936f14cf4e6716 Bjorn Andersson 2015-07-27 170 msg = (struct
qcom_rpm_message *)buf;
30b7ea5eda0afb Stephen Boyd 2015-09-02 171 msg_length =
le32_to_cpu(msg->length);
30b7ea5eda0afb Stephen Boyd 2015-09-02 172 switch
(le32_to_cpu(msg->msg_type)) {
936f14cf4e6716 Bjorn Andersson 2015-07-27 173 case
RPM_MSG_TYPE_MSG_ID:
936f14cf4e6716 Bjorn Andersson 2015-07-27 174 break;
936f14cf4e6716 Bjorn Andersson 2015-07-27 175 case
RPM_MSG_TYPE_ERR:
30b7ea5eda0afb Stephen Boyd 2015-09-02 176 len =
min_t(u32, ALIGN(msg_length, 4), sizeof(msgbuf));
936f14cf4e6716 Bjorn Andersson 2015-07-27 @177
memcpy_fromio(msgbuf, msg->message, len);
936f14cf4e6716 Bjorn Andersson 2015-07-27 178
msgbuf[len - 1] = 0;
936f14cf4e6716 Bjorn Andersson 2015-07-27 179
936f14cf4e6716 Bjorn Andersson 2015-07-27 180 if
(!strcmp(msgbuf, "resource does not exist"))
936f14cf4e6716 Bjorn Andersson 2015-07-27 181
status = -ENXIO;
936f14cf4e6716 Bjorn Andersson 2015-07-27 182 else
936f14cf4e6716 Bjorn Andersson 2015-07-27 183
status = -EINVAL;
936f14cf4e6716 Bjorn Andersson 2015-07-27 184 break;
936f14cf4e6716 Bjorn Andersson 2015-07-27 185 }
936f14cf4e6716 Bjorn Andersson 2015-07-27 186
30b7ea5eda0afb Stephen Boyd 2015-09-02 187 buf =
PTR_ALIGN(buf + 2 * sizeof(u32) + msg_length, 4);
936f14cf4e6716 Bjorn Andersson 2015-07-27 188 }
936f14cf4e6716 Bjorn Andersson 2015-07-27 189
936f14cf4e6716 Bjorn Andersson 2015-07-27 190 rpm->ack_status =
status;
936f14cf4e6716 Bjorn Andersson 2015-07-27 191 complete(&rpm->ack);
936f14cf4e6716 Bjorn Andersson 2015-07-27 192 return 0;
936f14cf4e6716 Bjorn Andersson 2015-07-27 193 }
936f14cf4e6716 Bjorn Andersson 2015-07-27 194
:::::: The code at line 177 was first introduced by commit
:::::: 936f14cf4e67168fcd37f10cebf5a475f490fb6e soc: qcom: Driver for the
Qualcomm RPM over SMD
:::::: TO: Bjorn Andersson <bjorn.anders...@sonymobile.com>
:::::: CC: Andy Gross <agr...@codeaurora.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
