The patch titled Subject: memblock: fix format strings for panics after memblock_alloc has been added to the -mm tree. Its filename is treewide-add-checks-for-the-return-value-of-memblock_alloc-fix-2.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/treewide-add-checks-for-the-return-value-of-memblock_alloc-fix-2.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/treewide-add-checks-for-the-return-value-of-memblock_alloc-fix-2.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Mike Rapoport <rppt@xxxxxxxxxxxxx> Subject: memblock: fix format strings for panics after memblock_alloc Using "%lu" to print size_t variables causes build warnings on i386 and probably other architectures: kernel/dma/swiotlb.c:210:35: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Wformat=] panic("%s: Failed to allocate %lu bytes align=0x%lx ", ~~^ %u __func__, alloc_size, PAGE_SIZE); ~~~~~~~~~~ Replace "%lu" with "%zu". Link: http://lkml.kernel.org/r/1548950940-15145-1-git-send-email-rppt@xxxxxxxxxxxxx Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx> Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- --- a/arch/x86/platform/olpc/olpc_dt.c~treewide-add-checks-for-the-return-value-of-memblock_alloc-fix-2 +++ a/arch/x86/platform/olpc/olpc_dt.c @@ -142,7 +142,7 @@ void * __init prom_early_alloc(unsigned */ res = memblock_alloc(chunk_size, SMP_CACHE_BYTES); if (!res) - panic("%s: Failed to allocate %lu bytes\n", __func__, + panic("%s: Failed to allocate %zu bytes\n", __func__, chunk_size); BUG_ON(!res); prom_early_allocated += chunk_size; --- a/kernel/dma/swiotlb.c~treewide-add-checks-for-the-return-value-of-memblock_alloc-fix-2 +++ a/kernel/dma/swiotlb.c @@ -207,13 +207,13 @@ int __init swiotlb_init_with_tbl(char *t alloc_size = PAGE_ALIGN(io_tlb_nslabs * sizeof(int)); io_tlb_list = memblock_alloc(alloc_size, PAGE_SIZE); if (!io_tlb_list) - panic("%s: Failed to allocate %lu bytes align=0x%lx\n", + panic("%s: Failed to allocate %zu bytes align=0x%lx\n", __func__, alloc_size, PAGE_SIZE); alloc_size = PAGE_ALIGN(io_tlb_nslabs * sizeof(phys_addr_t)); io_tlb_orig_addr = memblock_alloc(alloc_size, PAGE_SIZE); if (!io_tlb_orig_addr) - panic("%s: Failed to allocate %lu bytes align=0x%lx\n", + panic("%s: Failed to allocate %zu bytes align=0x%lx\n", __func__, alloc_size, PAGE_SIZE); for (i = 0; i < io_tlb_nslabs; i++) { _ Patches currently in -mm which might be from rppt@xxxxxxxxxxxxx are powerpc-prefer-memblock-apis-returning-virtual-address.patch microblaze-prefer-memblock-api-returning-virtual-address.patch sh-prefer-memblock-apis-returning-virtual-address.patch openrisc-simplify-pte_alloc_one_kernel.patch arch-simplify-several-early-memory-allocations.patch arm-s390-unicore32-remove-oneliner-wrappers-for-memblock_alloc.patch mm-page_alloc-check-return-value-of-memblock_alloc_node_nopanic.patch openrisc-prefer-memblock-apis-returning-virtual-address.patch memblock-replace-memblock_alloc_baseanywhere-with-memblock_phys_alloc.patch memblock-drop-memblock_alloc_base_nid.patch memblock-emphasize-that-memblock_alloc_range-returns-a-physical-address.patch memblock-memblock_phys_alloc_try_nid-dont-panic.patch memblock-memblock_phys_alloc-dont-panic.patch memblock-drop-__memblock_alloc_base.patch memblock-drop-memblock_alloc_base.patch memblock-refactor-internal-allocation-functions.patch memblock-make-memblock_find_in_range_node-and-choose_memblock_flags-static.patch arch-use-memblock_alloc-instead-of-memblock_alloc_fromsize-align-0.patch arch-dont-memset0-memory-returned-by-memblock_alloc.patch ia64-add-checks-for-the-return-value-of-memblock_alloc.patch sparc-add-checks-for-the-return-value-of-memblock_alloc.patch mm-percpu-add-checks-for-the-return-value-of-memblock_alloc.patch init-main-add-checks-for-the-return-value-of-memblock_alloc.patch swiotlb-add-checks-for-the-return-value-of-memblock_alloc.patch treewide-add-checks-for-the-return-value-of-memblock_alloc.patch treewide-add-checks-for-the-return-value-of-memblock_alloc-fix-2.patch memblock-memblock_alloc_try_nid-dont-panic.patch memblock-drop-memblock_alloc__nopanic-variants.patch