Re: [PATCH 1/2] efi: Fix cast to pointer from integer of different size in TPM log code

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On Wed, 3 Apr 2019 at 04:56, Matthew Garrett <matthewgarrett@xxxxxxxxxx> wrote:
>
> 8bfcff4a6a1d9d7226bb63a7da758b82d9ab4373

Which tree is this commit in?

> introduced a cast from
> efi_physical_address_t to (void *), which are different sizes on 32-bit.
> Fix that. Caught by the 0-day test bot.
>
> Signed-off-by: Matthew Garrett <mjg59@xxxxxxxxxx>

Acked-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>

I'll pick this up as a fix if we can clean up the commit log so it
doesn't refer to a commit that does not exist in mainline.

> ---
>  drivers/firmware/efi/libstub/tpm.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/firmware/efi/libstub/tpm.c b/drivers/firmware/efi/libstub/tpm.c
> index b6e93e14fcf1..6b3b507a54eb 100644
> --- a/drivers/firmware/efi/libstub/tpm.c
> +++ b/drivers/firmware/efi/libstub/tpm.c
> @@ -114,8 +114,8 @@ void efi_retrieve_tpm2_eventlog(efi_system_table_t *sys_table_arg)
>                          */
>                         last_entry_size =
>                                 __calc_tpm2_event_size((void *)last_entry_addr,
> -                                                      (void *)log_location,
> -                                                      false);
> +                                                   (void *)(long)log_location,
> +                                                   false);
>                 } else {
>                         last_entry_size = sizeof(struct tcpa_event) +
>                            ((struct tcpa_event *) last_entry_addr)->event_size;
> --
> 2.21.0.392.gf8f6787159e-goog
>



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