[U-Boot] [PATCH 1/1] efi_loader: efi_smbios_register should have a return value

[Alexander Graf]

On 30.01.18 21:00, Heinrich Schuchardt wrote:
> Errors may occur inside efi_smbios_register().
> 
> - Return a status code.
> - Remove unused variables.
> - Use constants where applicable.
> 
> Suggested-by: Simon Glass <sjg at chromium.org>
> Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
> ---
>  include/efi_loader.h        |  2 +-
>  lib/efi_loader/efi_smbios.c | 18 ++++++++++++------
>  lib/smbios.c                |  2 ++
>  3 files changed, 15 insertions(+), 7 deletions(-)
> 
> diff --git a/include/efi_loader.h b/include/efi_loader.h
> index 21c03c5c28..eb86853924 100644
> --- a/include/efi_loader.h
> +++ b/include/efi_loader.h
> @@ -185,7 +185,7 @@ int efi_net_register(void);
>  /* Called by bootefi to make the watchdog available */
>  int efi_watchdog_register(void);
>  /* Called by bootefi to make SMBIOS tables available */
> -void efi_smbios_register(void);
> +efi_status_t efi_smbios_register(void);
>  
>  struct efi_simple_file_system_protocol *
>  efi_fs_from_path(struct efi_device_path *fp);
> diff --git a/lib/efi_loader/efi_smbios.c b/lib/efi_loader/efi_smbios.c
> index 67f71892ca..62e9697902 100644
> --- a/lib/efi_loader/efi_smbios.c
> +++ b/lib/efi_loader/efi_smbios.c
> @@ -13,16 +13,22 @@
>  
>  static const efi_guid_t smbios_guid = SMBIOS_TABLE_GUID;
>  
> +/*
> + * Install the SMBIOS table as a configuration table.
> + *
> + * @return	status code
> + */
>  efi_status_t efi_smbios_register(void)
>  {
>  	/* Map within the low 32 bits, to allow for 32bit SMBIOS tables */
> -	uint64_t dmi = 0xffffffff;
> -	/* Reserve 4kb for SMBIOS */
> -	uint64_t pages = 1;
> -	int memtype = EFI_RUNTIME_SERVICES_DATA;
> +	u64 dmi = U32_MAX;
> +	efi_status_t ret;
>  
> -	if (efi_allocate_pages(1, memtype, pages, &dmi) != EFI_SUCCESS)
> -		return EFI_OUT_OF_RESOURCES;
> +	/* Reserve 4kiB page for SMBIOS */
> +	ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
> +				 EFI_RUNTIME_SERVICES_DATA, 1, &dmi);
> +	if (ret != EFI_SUCCESS)
> +		return ret;
>  
>  	/* Generate SMBIOS tables */
>  	write_smbios_table(dmi);
> diff --git a/lib/smbios.c b/lib/smbios.c
> index 8f19ad89c1..5389ca66e7 100644
> --- a/lib/smbios.c
> +++ b/lib/smbios.c
> @@ -301,5 +301,7 @@ ulong write_smbios_table(ulong addr)
>  	se->intermediate_checksum = table_compute_checksum(istart, isize);
>  	se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry));
>  
> +	printf("smbios table size: %d\n", isize);

Do we really want to print that on every payload invocation? I assume
most people don't care.


Alex