tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 06a4ec1d9dc652e17ee3ac2ceb6c7cf6c2b75cdd commit: 0d384eec10ea723f39df9736a04966e047850cfb drm/ast: Keep cursor HW BOs mapped date: 6 weeks ago :::::: branch date: 16 hours ago :::::: commit date: 6 weeks ago config: i386-randconfig-s002-20200818 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-183-gaa6ede3b-dirty git checkout 0d384eec10ea723f39df9736a04966e047850cfb # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386
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/gpu/drm/ast/ast_cursor.c:250:26: sparse: sparse: duplicate [noderef] >> drivers/gpu/drm/ast/ast_cursor.c:250:26: sparse: sparse: multiple address >> spaces given: __iomem & __iomem # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0d384eec10ea723f39df9736a04966e047850cfb git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 0d384eec10ea723f39df9736a04966e047850cfb vim +250 drivers/gpu/drm/ast/ast_cursor.c 81039adc92cd7a Thomas Zimmermann 2020-07-02 245 0d384eec10ea72 Thomas Zimmermann 2020-07-02 246 void ast_cursor_show(struct ast_private *ast, int x, int y, 81039adc92cd7a Thomas Zimmermann 2020-07-02 247 unsigned int offset_x, unsigned int offset_y) 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 248 { 81039adc92cd7a Thomas Zimmermann 2020-07-02 249 u8 x_offset, y_offset; 0d384eec10ea72 Thomas Zimmermann 2020-07-02 @250 u8 __iomem *dst, __iomem *sig; 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 251 u8 jreg; 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 252 0d384eec10ea72 Thomas Zimmermann 2020-07-02 253 dst = ast->cursor.vaddr[ast->cursor.next_index]; 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 254 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 255 sig = dst + AST_HWC_SIZE; 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 256 writel(x, sig + AST_HWC_SIGNATURE_X); 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 257 writel(y, sig + AST_HWC_SIGNATURE_Y); 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 258 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 259 if (x < 0) { 81039adc92cd7a Thomas Zimmermann 2020-07-02 260 x_offset = (-x) + offset_x; 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 261 x = 0; 81039adc92cd7a Thomas Zimmermann 2020-07-02 262 } else { 81039adc92cd7a Thomas Zimmermann 2020-07-02 263 x_offset = offset_x; 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 264 } 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 265 if (y < 0) { 81039adc92cd7a Thomas Zimmermann 2020-07-02 266 y_offset = (-y) + offset_y; 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 267 y = 0; 81039adc92cd7a Thomas Zimmermann 2020-07-02 268 } else { 81039adc92cd7a Thomas Zimmermann 2020-07-02 269 y_offset = offset_y; 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 270 } 81039adc92cd7a Thomas Zimmermann 2020-07-02 271 81039adc92cd7a Thomas Zimmermann 2020-07-02 272 ast_cursor_set_location(ast, x, y, x_offset, y_offset); 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 273 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 274 /* dummy write to fire HWC */ 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 275 jreg = 0x02 | 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 276 0x01; /* enable ARGB4444 cursor */ 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 277 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg); 2ccebf561e4a90 Thomas Zimmermann 2020-07-02 278 } c91eadd110463f Thomas Zimmermann 2020-07-02 279 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
