Hi Thomas, kernel test robot noticed the following build warnings:
https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/drm-ast-Do-not-print-DRAM-info/20250822-213333 base: https://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git exynos-drm-next patch link: https://lore.kernel.org/r/20250822132846.25376-7-tzimmermann%40suse.de patch subject: [PATCH 6/6] drm/ast: Put AST_DRAM_ constants into enum ast_dram_layout config: i386-randconfig-141-20250823 (https://download.01.org/0day-ci/archive/20250824/202508240748.tuavblux-...@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0 If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <l...@intel.com> | Reported-by: Dan Carpenter <dan.carpen...@linaro.org> | Closes: https://lore.kernel.org/r/202508240748.tuavblux-...@intel.com/ smatch warnings: drivers/gpu/drm/ast/ast_2100.c:63 ast_2100_get_dram_layout_p2a() error: uninitialized symbol 'dram_layout'. vim +/dram_layout +63 drivers/gpu/drm/ast/ast_2100.c 334d62edac4c5b Thomas Zimmermann 2025-08-22 38 static enum ast_dram_layout ast_2100_get_dram_layout_p2a(struct ast_device *ast) b59465efc7cb88 Thomas Zimmermann 2025-08-22 39 { b59465efc7cb88 Thomas Zimmermann 2025-08-22 40 u32 mcr_cfg; 334d62edac4c5b Thomas Zimmermann 2025-08-22 41 enum ast_dram_layout dram_layout; b59465efc7cb88 Thomas Zimmermann 2025-08-22 42 b59465efc7cb88 Thomas Zimmermann 2025-08-22 43 ast_write32(ast, 0xf004, 0x1e6e0000); b59465efc7cb88 Thomas Zimmermann 2025-08-22 44 ast_write32(ast, 0xf000, 0x1); b59465efc7cb88 Thomas Zimmermann 2025-08-22 45 mcr_cfg = ast_read32(ast, 0x10004); b59465efc7cb88 Thomas Zimmermann 2025-08-22 46 b59465efc7cb88 Thomas Zimmermann 2025-08-22 47 switch (mcr_cfg & 0x0c) { b59465efc7cb88 Thomas Zimmermann 2025-08-22 48 case 0: b59465efc7cb88 Thomas Zimmermann 2025-08-22 49 case 4: 334d62edac4c5b Thomas Zimmermann 2025-08-22 50 dram_layout = AST_DRAM_512Mx16; b59465efc7cb88 Thomas Zimmermann 2025-08-22 51 break; b59465efc7cb88 Thomas Zimmermann 2025-08-22 52 case 8: b59465efc7cb88 Thomas Zimmermann 2025-08-22 53 if (mcr_cfg & 0x40) 334d62edac4c5b Thomas Zimmermann 2025-08-22 54 dram_layout = AST_DRAM_1Gx16; b59465efc7cb88 Thomas Zimmermann 2025-08-22 55 else 334d62edac4c5b Thomas Zimmermann 2025-08-22 56 dram_layout = AST_DRAM_512Mx32; b59465efc7cb88 Thomas Zimmermann 2025-08-22 57 break; b59465efc7cb88 Thomas Zimmermann 2025-08-22 58 case 0xc: 334d62edac4c5b Thomas Zimmermann 2025-08-22 59 dram_layout = AST_DRAM_1Gx32; b59465efc7cb88 Thomas Zimmermann 2025-08-22 60 break; Should there be a default case? b59465efc7cb88 Thomas Zimmermann 2025-08-22 61 } b59465efc7cb88 Thomas Zimmermann 2025-08-22 62 334d62edac4c5b Thomas Zimmermann 2025-08-22 @63 return dram_layout; b59465efc7cb88 Thomas Zimmermann 2025-08-22 64 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
