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Date: Sat, 25 Jun 2022 10:58:38 +0800
From: kernel test robot <lkp@...el.com>
To: Niklas Cassel <niklas.cassel@...aro.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Vivek Gautam <vivek.gautam@...eaurora.org>,
Vinod Koul <vkoul@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Andy Gross <andy.gross@...aro.org>,
Matthias Kaehlcke <mka@...omium.org>,
Evan Green <evgreen@...omium.org>
Subject: [jsarha:topic/cros-sof-v4.19 923/6555]
drivers/soc/qcom/smd-rpm.c:183:47: sparse: sparse: incorrect type in
argument 2 (different address spaces)
tree: https://github.com/jsarha/linux topic/cros-sof-v4.19
head: d7a3e91d8d16d1ef8653deec5a1fffc4de034a0c
commit: cb830e93e29574f6eae7ecd6f709905e15c245cb [923/6555] UPSTREAM: soc: qcom: Allow COMPILE_TEST of qcom SoC Kconfigs
config: mips-randconfig-s031-20220624
compiler: mips-linux-gcc (GCC) 11.3.0
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: v0.6.4-31-g4880bd19-dirty
# https://github.com/jsarha/linux/commit/cb830e93e29574f6eae7ecd6f709905e15c245cb
git remote add jsarha https://github.com/jsarha/linux
git fetch --no-tags jsarha topic/cros-sof-v4.19
git checkout cb830e93e29574f6eae7ecd6f709905e15c245cb
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips SHELL=/bin/bash drivers/soc/qcom/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/soc/qcom/smd-rpm.c:183:47: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const volatile [noderef] <asn:2> *src @@ got unsigned char const * @@
drivers/soc/qcom/smd-rpm.c:183:47: sparse: expected void const volatile [noderef] <asn:2> *src
drivers/soc/qcom/smd-rpm.c:183:47: sparse: got unsigned char const *
drivers/soc/qcom/smd-rpm.c:41: warning: Function parameter or member 'dev' not described in 'qcom_smd_rpm'
drivers/soc/qcom/smd-rpm.c:105: warning: Function parameter or member 'state' not described in 'qcom_rpm_smd_write'
vim +183 drivers/soc/qcom/smd-rpm.c
936f14cf4e6716 Bjorn Andersson 2015-07-27 152
5052de8deff561 Bjorn Andersson 2017-03-27 153 static int qcom_smd_rpm_callback(struct rpmsg_device *rpdev,
5052de8deff561 Bjorn Andersson 2017-03-27 154 void *data,
5052de8deff561 Bjorn Andersson 2017-03-27 155 int count,
5052de8deff561 Bjorn Andersson 2017-03-27 156 void *priv,
5052de8deff561 Bjorn Andersson 2017-03-27 157 u32 addr)
936f14cf4e6716 Bjorn Andersson 2015-07-27 158 {
936f14cf4e6716 Bjorn Andersson 2015-07-27 159 const struct qcom_rpm_header *hdr = data;
30b7ea5eda0afb Stephen Boyd 2015-09-02 160 size_t hdr_length = le32_to_cpu(hdr->length);
936f14cf4e6716 Bjorn Andersson 2015-07-27 161 const struct qcom_rpm_message *msg;
5052de8deff561 Bjorn Andersson 2017-03-27 162 struct qcom_smd_rpm *rpm = dev_get_drvdata(&rpdev->dev);
936f14cf4e6716 Bjorn Andersson 2015-07-27 163 const u8 *buf = data + sizeof(struct qcom_rpm_header);
30b7ea5eda0afb Stephen Boyd 2015-09-02 164 const u8 *end = buf + hdr_length;
936f14cf4e6716 Bjorn Andersson 2015-07-27 165 char msgbuf[32];
936f14cf4e6716 Bjorn Andersson 2015-07-27 166 int status = 0;
30b7ea5eda0afb Stephen Boyd 2015-09-02 167 u32 len, msg_length;
936f14cf4e6716 Bjorn Andersson 2015-07-27 168
30b7ea5eda0afb Stephen Boyd 2015-09-02 169 if (le32_to_cpu(hdr->service_type) != RPM_SERVICE_TYPE_REQUEST ||
30b7ea5eda0afb Stephen Boyd 2015-09-02 170 hdr_length < sizeof(struct qcom_rpm_message)) {
b853cb9628bfbc Bjorn Andersson 2016-03-28 171 dev_err(rpm->dev, "invalid request\n");
936f14cf4e6716 Bjorn Andersson 2015-07-27 172 return 0;
936f14cf4e6716 Bjorn Andersson 2015-07-27 173 }
936f14cf4e6716 Bjorn Andersson 2015-07-27 174
936f14cf4e6716 Bjorn Andersson 2015-07-27 175 while (buf < end) {
936f14cf4e6716 Bjorn Andersson 2015-07-27 176 msg = (struct qcom_rpm_message *)buf;
30b7ea5eda0afb Stephen Boyd 2015-09-02 177 msg_length = le32_to_cpu(msg->length);
30b7ea5eda0afb Stephen Boyd 2015-09-02 178 switch (le32_to_cpu(msg->msg_type)) {
936f14cf4e6716 Bjorn Andersson 2015-07-27 179 case RPM_MSG_TYPE_MSG_ID:
936f14cf4e6716 Bjorn Andersson 2015-07-27 180 break;
936f14cf4e6716 Bjorn Andersson 2015-07-27 181 case RPM_MSG_TYPE_ERR:
30b7ea5eda0afb Stephen Boyd 2015-09-02 182 len = min_t(u32, ALIGN(msg_length, 4), sizeof(msgbuf));
936f14cf4e6716 Bjorn Andersson 2015-07-27 @183 memcpy_fromio(msgbuf, msg->message, len);
936f14cf4e6716 Bjorn Andersson 2015-07-27 184 msgbuf[len - 1] = 0;
936f14cf4e6716 Bjorn Andersson 2015-07-27 185
936f14cf4e6716 Bjorn Andersson 2015-07-27 186 if (!strcmp(msgbuf, "resource does not exist"))
936f14cf4e6716 Bjorn Andersson 2015-07-27 187 status = -ENXIO;
936f14cf4e6716 Bjorn Andersson 2015-07-27 188 else
936f14cf4e6716 Bjorn Andersson 2015-07-27 189 status = -EINVAL;
936f14cf4e6716 Bjorn Andersson 2015-07-27 190 break;
936f14cf4e6716 Bjorn Andersson 2015-07-27 191 }
936f14cf4e6716 Bjorn Andersson 2015-07-27 192
30b7ea5eda0afb Stephen Boyd 2015-09-02 193 buf = PTR_ALIGN(buf + 2 * sizeof(u32) + msg_length, 4);
936f14cf4e6716 Bjorn Andersson 2015-07-27 194 }
936f14cf4e6716 Bjorn Andersson 2015-07-27 195
936f14cf4e6716 Bjorn Andersson 2015-07-27 196 rpm->ack_status = status;
936f14cf4e6716 Bjorn Andersson 2015-07-27 197 complete(&rpm->ack);
936f14cf4e6716 Bjorn Andersson 2015-07-27 198 return 0;
936f14cf4e6716 Bjorn Andersson 2015-07-27 199 }
936f14cf4e6716 Bjorn Andersson 2015-07-27 200
:::::: The code at line 183 was first introduced by commit
:::::: 936f14cf4e67168fcd37f10cebf5a475f490fb6e soc: qcom: Driver for the Qualcomm RPM over SMD
:::::: TO: Bjorn Andersson <bjorn.andersson@...ymobile.com>
:::::: CC: Andy Gross <agross@...eaurora.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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