tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: f68868ba718e30594165879cc3020607165b0761 commit: 2acef04ad57cab44b33001542791fc93f81cadf1 [9793/10134] of: reserved_mem: Remove the use of phandle from the reserved_mem APIs config: i386-randconfig-141-20240501 (https://download.01.org/0day-ci/archive/20240502/202405020127.3ncxx3EI-lkp@xxxxxxxxx/config) compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0 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 <lkp@xxxxxxxxx> | Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> | Closes: https://lore.kernel.org/r/202405020127.3ncxx3EI-lkp@xxxxxxxxx/ smatch warnings: drivers/of/of_reserved_mem.c:463 fdt_init_reserved_mem() error: uninitialized symbol 'nomap'. vim +/nomap +463 drivers/of/of_reserved_mem.c 3f0c8206644836 Marek Szyprowski 2014-02-28 430 void __init fdt_init_reserved_mem(void) 3f0c8206644836 Marek Szyprowski 2014-02-28 431 { 3f0c8206644836 Marek Szyprowski 2014-02-28 432 int i; ae1add247bf8c2 Mitchel Humpherys 2015-09-15 433 ae1add247bf8c2 Mitchel Humpherys 2015-09-15 434 /* check for overlapping reserved regions */ ae1add247bf8c2 Mitchel Humpherys 2015-09-15 435 __rmem_check_for_overlap(); ae1add247bf8c2 Mitchel Humpherys 2015-09-15 436 3f0c8206644836 Marek Szyprowski 2014-02-28 437 for (i = 0; i < reserved_mem_count; i++) { 3f0c8206644836 Marek Szyprowski 2014-02-28 438 struct reserved_mem *rmem = &reserved_mem[i]; 3f0c8206644836 Marek Szyprowski 2014-02-28 439 unsigned long node = rmem->fdt_node; 3f0c8206644836 Marek Szyprowski 2014-02-28 440 int err = 0; 6f1188b4ac7577 Yue Hu 2020-07-30 441 bool nomap; 3f0c8206644836 Marek Szyprowski 2014-02-28 442 3f0c8206644836 Marek Szyprowski 2014-02-28 443 if (rmem->size == 0) 3f0c8206644836 Marek Szyprowski 2014-02-28 444 err = __reserved_mem_alloc_size(node, rmem->name, 3f0c8206644836 Marek Szyprowski 2014-02-28 445 &rmem->base, &rmem->size); d0b8ed47e83a22 pierre Kuo 2019-02-19 446 if (err == 0) { d0b8ed47e83a22 pierre Kuo 2019-02-19 447 err = __reserved_mem_init_node(rmem); d0b8ed47e83a22 pierre Kuo 2019-02-19 448 if (err != 0 && err != -ENOENT) { d0b8ed47e83a22 pierre Kuo 2019-02-19 449 pr_info("node %s compatible matching fail\n", d0b8ed47e83a22 pierre Kuo 2019-02-19 450 rmem->name); 2acef04ad57cab Oreoluwa Babatunde 2024-04-22 451 2acef04ad57cab Oreoluwa Babatunde 2024-04-22 452 nomap = of_get_flat_dt_prop(node, "no-map", NULL) != NULL; d0b8ed47e83a22 pierre Kuo 2019-02-19 453 if (nomap) 7b25995f5319ad Dong Aisheng 2021-06-11 454 memblock_clear_nomap(rmem->base, rmem->size); 3c6867a12a224d Dong Aisheng 2021-06-11 455 else 3ecc68349bbab6 Mike Rapoport 2021-11-05 456 memblock_phys_free(rmem->base, 3ecc68349bbab6 Mike Rapoport 2021-11-05 457 rmem->size); aeb9267eb6b1df Martin Liu 2023-02-10 458 } else { aeb9267eb6b1df Martin Liu 2023-02-10 459 phys_addr_t end = rmem->base + rmem->size - 1; aeb9267eb6b1df Martin Liu 2023-02-10 460 bool reusable = aeb9267eb6b1df Martin Liu 2023-02-10 461 (of_get_flat_dt_prop(node, "reusable", NULL)) != NULL; aeb9267eb6b1df Martin Liu 2023-02-10 462 6ee7afbabcee4d Geert Uytterhoeven 2023-02-16 @463 pr_info("%pa..%pa (%lu KiB) %s %s %s\n", aeb9267eb6b1df Martin Liu 2023-02-10 464 &rmem->base, &end, (unsigned long)(rmem->size / SZ_1K), aeb9267eb6b1df Martin Liu 2023-02-10 465 nomap ? "nomap" : "map", ^^^^^ ^^^^^ This is nomap from the previous iteration through the loop. How is it useful? aeb9267eb6b1df Martin Liu 2023-02-10 466 reusable ? "reusable" : "non-reusable", aeb9267eb6b1df Martin Liu 2023-02-10 467 rmem->name ? rmem->name : "unknown"); d0b8ed47e83a22 pierre Kuo 2019-02-19 468 } d0b8ed47e83a22 pierre Kuo 2019-02-19 469 } 3f0c8206644836 Marek Szyprowski 2014-02-28 470 } 3f0c8206644836 Marek Szyprowski 2014-02-28 471 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
