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From: Rob Herring <robh+dt@kernel.org>
To: Mike Rapoport <rppt@linux.ibm.com>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Christoph Hellwig <hch@lst.de>,
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	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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	<uclinux-h8-devel@lists.sourceforge.jp>,
	x86@kernel.org, xen-devel@lists.xenproject.org
Subject: Re: [PATCH 19/21] treewide: add checks for the return value of memblock_alloc*()
Date: Wed, 16 Jan 2019 09:18:24 -0600	[thread overview]
Message-ID: <CAL_JsqJv=+SQwmbwuw1C5Rv9sFHhk4SiP=Z_cKJu3HG5kdwhrg@mail.gmail.com> (raw)
In-Reply-To: <1547646261-32535-20-git-send-email-rppt@linux.ibm.com>

On Wed, Jan 16, 2019 at 7:46 AM Mike Rapoport <rppt@linux.ibm.com> wrote:
>
> Add check for the return value of memblock_alloc*() functions and call
> panic() in case of error.
> The panic message repeats the one used by panicing memblock allocators with
> adjustment of parameters to include only relevant ones.
>
> The replacement was mostly automated with semantic patches like the one
> below with manual massaging of format strings.
>
> @@
> expression ptr, size, align;
> @@
> ptr = memblock_alloc(size, align);
> + if (!ptr)
> +       panic("%s: Failed to allocate %lu bytes align=0x%lx\n", __func__,
> size, align);
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> ---
>  arch/alpha/kernel/core_cia.c              |  3 +++
>  arch/alpha/kernel/core_marvel.c           |  6 ++++++
>  arch/alpha/kernel/pci-noop.c              | 11 ++++++++++-
>  arch/alpha/kernel/pci.c                   | 11 ++++++++++-
>  arch/alpha/kernel/pci_iommu.c             | 12 ++++++++++++
>  arch/arc/mm/highmem.c                     |  4 ++++
>  arch/arm/kernel/setup.c                   |  6 ++++++
>  arch/arm/mm/mmu.c                         | 14 +++++++++++++-
>  arch/arm64/kernel/setup.c                 |  9 ++++++---
>  arch/arm64/mm/kasan_init.c                | 10 ++++++++++
>  arch/c6x/mm/dma-coherent.c                |  4 ++++
>  arch/c6x/mm/init.c                        |  3 +++
>  arch/csky/mm/highmem.c                    |  5 +++++
>  arch/h8300/mm/init.c                      |  3 +++
>  arch/m68k/atari/stram.c                   |  4 ++++
>  arch/m68k/mm/init.c                       |  3 +++
>  arch/m68k/mm/mcfmmu.c                     |  6 ++++++
>  arch/m68k/mm/motorola.c                   |  9 +++++++++
>  arch/m68k/mm/sun3mmu.c                    |  6 ++++++
>  arch/m68k/sun3/sun3dvma.c                 |  3 +++
>  arch/microblaze/mm/init.c                 |  8 ++++++--
>  arch/mips/cavium-octeon/dma-octeon.c      |  3 +++
>  arch/mips/kernel/setup.c                  |  3 +++
>  arch/mips/kernel/traps.c                  |  3 +++
>  arch/mips/mm/init.c                       |  5 +++++
>  arch/nds32/mm/init.c                      | 12 ++++++++++++
>  arch/openrisc/mm/ioremap.c                |  8 ++++++--
>  arch/powerpc/kernel/dt_cpu_ftrs.c         |  5 +++++
>  arch/powerpc/kernel/pci_32.c              |  3 +++
>  arch/powerpc/kernel/setup-common.c        |  3 +++
>  arch/powerpc/kernel/setup_64.c            |  4 ++++
>  arch/powerpc/lib/alloc.c                  |  3 +++
>  arch/powerpc/mm/hash_utils_64.c           |  3 +++
>  arch/powerpc/mm/mmu_context_nohash.c      |  9 +++++++++
>  arch/powerpc/mm/pgtable-book3e.c          | 12 ++++++++++--
>  arch/powerpc/mm/pgtable-book3s64.c        |  3 +++
>  arch/powerpc/mm/pgtable-radix.c           |  9 ++++++++-
>  arch/powerpc/mm/ppc_mmu_32.c              |  3 +++
>  arch/powerpc/platforms/pasemi/iommu.c     |  3 +++
>  arch/powerpc/platforms/powermac/nvram.c   |  3 +++
>  arch/powerpc/platforms/powernv/opal.c     |  3 +++
>  arch/powerpc/platforms/powernv/pci-ioda.c |  8 ++++++++
>  arch/powerpc/platforms/ps3/setup.c        |  3 +++
>  arch/powerpc/sysdev/msi_bitmap.c          |  3 +++
>  arch/s390/kernel/setup.c                  | 13 +++++++++++++
>  arch/s390/kernel/smp.c                    |  5 ++++-
>  arch/s390/kernel/topology.c               |  6 ++++++
>  arch/s390/numa/mode_emu.c                 |  3 +++
>  arch/s390/numa/numa.c                     |  6 +++++-
>  arch/s390/numa/toptree.c                  |  8 ++++++--
>  arch/sh/mm/init.c                         |  6 ++++++
>  arch/sh/mm/numa.c                         |  4 ++++
>  arch/um/drivers/net_kern.c                |  3 +++
>  arch/um/drivers/vector_kern.c             |  3 +++
>  arch/um/kernel/initrd.c                   |  2 ++
>  arch/um/kernel/mem.c                      | 16 ++++++++++++++++
>  arch/unicore32/kernel/setup.c             |  4 ++++
>  arch/unicore32/mm/mmu.c                   | 15 +++++++++++++--
>  arch/x86/kernel/acpi/boot.c               |  3 +++
>  arch/x86/kernel/apic/io_apic.c            |  5 +++++
>  arch/x86/kernel/e820.c                    |  3 +++
>  arch/x86/platform/olpc/olpc_dt.c          |  3 +++
>  arch/x86/xen/p2m.c                        | 11 +++++++++--
>  arch/xtensa/mm/kasan_init.c               |  4 ++++
>  arch/xtensa/mm/mmu.c                      |  3 +++
>  drivers/clk/ti/clk.c                      |  3 +++
>  drivers/macintosh/smu.c                   |  3 +++
>  drivers/of/fdt.c                          |  8 +++++++-
>  drivers/of/unittest.c                     |  8 +++++++-

Acked-by: Rob Herring <robh@kernel.org>

>  drivers/xen/swiotlb-xen.c                 |  7 +++++--
>  kernel/power/snapshot.c                   |  3 +++
>  lib/cpumask.c                             |  3 +++
>  mm/kasan/init.c                           | 10 ++++++++--
>  mm/sparse.c                               | 19 +++++++++++++++++--
>  74 files changed, 415 insertions(+), 29 deletions(-)

  parent reply	other threads:[~2019-01-16 15:18 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-16 13:44 [PATCH 00/21] Refine memblock API Mike Rapoport
2019-01-16 13:44 ` [PATCH 01/21] openrisc: prefer memblock APIs returning virtual address Mike Rapoport
2019-01-16 13:44 ` [PATCH 02/21] powerpc: use memblock functions " Mike Rapoport
2019-01-16 13:44 ` [PATCH 03/21] memblock: replace memblock_alloc_base(ANYWHERE) with memblock_phys_alloc Mike Rapoport
2019-01-16 13:44 ` [PATCH 04/21] memblock: drop memblock_alloc_base_nid() Mike Rapoport
2019-01-16 13:44 ` [PATCH 05/21] memblock: emphasize that memblock_alloc_range() returns a physical address Mike Rapoport
2019-01-16 13:44 ` [PATCH 06/21] memblock: memblock_phys_alloc_try_nid(): don't panic Mike Rapoport
2019-01-16 13:44 ` [PATCH 07/21] memblock: memblock_phys_alloc(): " Mike Rapoport
2019-01-16 13:44 ` [PATCH 08/21] memblock: drop __memblock_alloc_base() Mike Rapoport
2019-01-16 15:15   ` Rob Herring
2019-01-16 15:15     ` Rob Herring
2019-01-16 13:44 ` [PATCH 09/21] memblock: drop memblock_alloc_base() Mike Rapoport
2019-01-16 13:44 ` [PATCH 10/21] memblock: refactor internal allocation functions Mike Rapoport
2019-01-16 13:44 ` [PATCH 11/21] memblock: make memblock_find_in_range_node() and choose_memblock_flags() static Mike Rapoport
2019-01-16 13:44 ` [PATCH 12/21] arch: use memblock_alloc() instead of memblock_alloc_from(size, align, 0) Mike Rapoport
2019-01-18 17:53   ` Paul Burton
2019-01-16 13:44 ` [PATCH 13/21] arch: don't memset(0) memory returned by memblock_alloc() Mike Rapoport
2019-01-16 14:17   ` Geert Uytterhoeven
2019-01-16 14:17     ` Geert Uytterhoeven
2019-01-16 13:44 ` [PATCH 14/21] ia64: add checks for the return value of memblock_alloc*() Mike Rapoport
2019-01-16 13:44 ` [PATCH 15/21] sparc: " Mike Rapoport
2019-01-16 17:21   ` David Miller
2019-01-16 13:44 ` [PATCH 16/21] mm/percpu: " Mike Rapoport
2019-01-16 13:44 ` [PATCH 17/21] init/main: " Mike Rapoport
2019-01-16 13:44 ` [PATCH 18/21] swiotlb: " Mike Rapoport
2019-01-16 13:44 ` [PATCH 19/21] treewide: " Mike Rapoport
2019-01-16 14:27   ` Geert Uytterhoeven
2019-01-16 14:27     ` Geert Uytterhoeven
2019-01-16 15:13     ` Mike Rapoport
2019-01-16 15:13       ` Mike Rapoport
2019-01-16 14:32   ` [Xen-devel] " Juergen Gross
2019-01-16 15:18   ` Rob Herring [this message]
2019-01-16 15:18     ` Rob Herring
2019-01-17  7:06   ` Guo Ren
2019-01-18  8:43   ` Heiko Carstens
2019-01-18 18:02   ` Paul Burton
2019-01-16 13:44 ` [PATCH 20/21] memblock: memblock_alloc_try_nid: don't panic Mike Rapoport
2019-01-16 13:44 ` [PATCH 21/21] memblock: drop memblock_alloc_*_nopanic() variants Mike Rapoport
2019-01-17  9:28   ` Petr Mladek
2019-01-18  8:42   ` Greg Kroah-Hartman

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