[PATCH] image.h: use uint32_t instead of u32 in android_image_get_dtb*

[Sam Protsenko]

Hi Eugeniu,

On Mon, Feb 17, 2020 at 12:24 PM Eugeniu Rosca <erosca at de.adit-jv.com> wrote:
>
> Replace 'u32' by 'uint32_t' in image.h, since the former may lead to
> build failures in U-Boot tooling (see [1]).
>
> Avoid using 'uint', since it is not a fixed-width type [2], potentially
> leading to a dangerous mismatch between the prototypes and definitions
> of the android_image_get_dtb* functions.
>
> This should be the quickest way to overcome the tooling build failure,
> with more future-proof solutions being proposed by Yamada-san in [1].
>
> [1] https://patchwork.ozlabs.org/patch/1238245/
> [2] Excerpt from https://en.cppreference.com/w/cpp/language/types
>  -----------8<------------
>  Type specifier    Width in bits by data model
>                    LP32  ILP32  LLP64  LP64
>  unsigned int      16    32     32     32
>  -----------8<------------
>
> Cc: Tom Rini <trini at konsulko.com>
> Cc: Sam Protsenko <joe.skb7 at gmail.com>
> Fixes: 7f2531502c74c0 ("image: android: Add routine to get dtbo params")
> Fixes: c3bfad825a71ea ("image: android: Add functions for handling dtb field")
> Suggested-by: Masahiro Yamada <masahiroy at kernel.org>
> Signed-off-by: Eugeniu Rosca <erosca at de.adit-jv.com>
> ---

Reviewed-by: Sam Protsenko <joe.skb7 at gmail.com>

>  include/image.h | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/include/image.h b/include/image.h
> index b316d167d8d7..1341fbed62ba 100644
> --- a/include/image.h
> +++ b/include/image.h
> @@ -1425,9 +1425,9 @@ int android_image_get_ramdisk(const struct andr_img_hdr *hdr,
>                               ulong *rd_data, ulong *rd_len);
>  int android_image_get_second(const struct andr_img_hdr *hdr,
>                               ulong *second_data, ulong *second_len);
> -bool android_image_get_dtbo(ulong hdr_addr, ulong *addr, u32 *size);
> -bool android_image_get_dtb_by_index(ulong hdr_addr, u32 index, ulong *addr,
> -                                   u32 *size);
> +bool android_image_get_dtbo(ulong hdr_addr, ulong *addr, uint32_t *size);
> +bool android_image_get_dtb_by_index(ulong hdr_addr, uint32_t index, ulong *addr,
> +                                   uint32_t *size);
>  ulong android_image_get_end(const struct andr_img_hdr *hdr);
>  ulong android_image_get_kload(const struct andr_img_hdr *hdr);
>  ulong android_image_get_kcomp(const struct andr_img_hdr *hdr);
> --
> 2.25.0
>