Messages in this thread | | | Date | Sun, 5 Jul 2020 11:13:59 +0800 | From | kernel test robot <> | Subject | drivers/soc/qcom/smd-rpm.c:177:47: sparse: sparse: incorrect type in argument 2 (different address spaces) |
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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 <lkp@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.andersson@sonymobile.com> :::::: CC: Andy Gross <agross@codeaurora.org>
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