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SubjectRe: [PATCH v2 1/2] ACPI: NFIT: Fix incorrect calculation of idt size
Yu Liao wrote:
> acpi_nfit_interleave's field 'line_offset' is switched to flexible array [1],
> but sizeof_idt() still calculates the size in the form of 1-element array.
>
> Therefore, fix incorrect calculation in sizeof_idt().
>
> [1] https://lore.kernel.org/lkml/2652195.BddDVKsqQX@kreacher/
>
> Fixes: 2a5ab99847bd ("ACPICA: struct acpi_nfit_interleave: Replace 1-element array with flexible array")
> Cc: stable@vger.kernel.org # v6.4+
> Signed-off-by: Yu Liao <liaoyu15@huawei.com>
> Reviewed-by: Dave Jiang <dave.jiang@intel.com>

Reviewed-by: Ira Weiny <ira.weiny@intel.com>

> ---
> v1 -> v2: add Dave's review tag and cc nvdimm@lists.linux.dev
> ---
> drivers/acpi/nfit/core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
> index 07204d482968..305f590c54a8 100644
> --- a/drivers/acpi/nfit/core.c
> +++ b/drivers/acpi/nfit/core.c
> @@ -855,7 +855,7 @@ static size_t sizeof_idt(struct acpi_nfit_interleave *idt)
> {
> if (idt->header.length < sizeof(*idt))
> return 0;
> - return sizeof(*idt) + sizeof(u32) * (idt->line_count - 1);
> + return sizeof(*idt) + sizeof(u32) * idt->line_count;
> }
>
> static bool add_idt(struct acpi_nfit_desc *acpi_desc,
> --
> 2.25.1
>


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