tree: git://people.freedesktop.org/~gabbayo/linux habanalabs-next head: aaebb2539ebbebac78f31df2d6ea9f463a27cb8c commit: 0778d45ef52dd3b9bc92765de7e7f97a80224a06 [23/24] habanalabs: add new IOCTL for debug, tracing and profiling config: mips-allyesconfig (attached as .config) compiler: mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 0778d45ef52dd3b9bc92765de7e7f97a80224a06 # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=mips

All warnings (new ones prefixed by >>):

drivers/misc//habanalabs/habanalabs_ioctl.c: In function 'debug_coresight':

...

drivers/misc//habanalabs/habanalabs_ioctl.c:149:29: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

if (copy_from_user(input, (void __user *)args->input_ptr, ^ drivers/misc//habanalabs/habanalabs_ioctl.c:179:20: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] if (copy_to_user((void __user *)args->output_ptr, output, ^

vim +149 drivers/misc//habanalabs/habanalabs_ioctl.c

127 128 static int debug_coresight(struct hl_device *hdev, struct hl_debug_args *args) 129 { 130 struct hl_debug_params *params; 131 void *input = NULL, *output = NULL; 132 int rc; 133 134 params = kzalloc(sizeof(*params), GFP_KERNEL); 135 if (!params) 136 return -ENOMEM; 137 138 params->reg_idx = args->reg_idx; 139 params->enable = args->enable; 140 params->op = args->op; 141 142 if (args->input_ptr && args->input_size) { 143 input = kzalloc(args->input_size, GFP_KERNEL); 144 if (!input) { 145 rc = -ENOMEM; 146 goto out; 147 } 148

149 if (copy_from_user(input, (void __user *)args->input_ptr,

150 args->input_size)) { 151 dev_err(hdev->dev, 152 "copy from user failed in debug ioctl\n"); 153 rc = -EFAULT; 154 goto out; 155 } 156 157 params->input = input; 158 } 159 160 if (args->output_ptr && args->output_size) { 161 output = kzalloc(args->output_size, GFP_KERNEL); 162 if (!output) { 163 rc = -ENOMEM; 164 goto out; 165 } 166 167 params->output = output; 168 params->output_size = args->output_size; 169 } 170 171 rc = hdev->asic_funcs->debug_coresight(hdev, params); 172 if (rc) { 173 dev_err(hdev->dev, 174 "debug coresight operation failed %d\n", rc); 175 goto out; 176 } 177 178 if (output) { 179 if (copy_to_user((void __user *)args->output_ptr, output, 180 args->output_size)) { 181 dev_err(hdev->dev, 182 "copy to user failed in debug ioctl\n"); 183 rc = -EFAULT; 184 goto out; 185 } 186 } 187 188 out: 189 kfree(params); 190 kfree(output); 191 kfree(input); 192 193 return rc; 194 } 195

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