From 3e6cc35f4e8fb5010421e606cfab0e00d0adacc0 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Thu, 25 Aug 2016 01:47:18 -0700 Subject: x86: efi: Fix EFI 64-bit payload build warnings There are lots of warnings when building EFI 64-bit payload. include/asm-generic/bitops/__fls.h:17:2: warning: left shift count >= width of type if (!(word & (~0ul << 32))) { ^ In fact, U-Boot itself as EFI payload is running in 32-bit mode. So BITS_PER_LONG needs to still be 32, but EFI status codes are 64-bit when booting from 64-bit EFI. Introduce EFI_BITS_PER_LONG to bridge those status codes with U-Boot's BITS_PER_LONG. Signed-off-by: Bin Meng Reviewed-by: Simon Glass --- include/efi.h | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/efi.h b/include/efi.h index 21921f1..83de2d4 100644 --- a/include/efi.h +++ b/include/efi.h @@ -27,19 +27,27 @@ struct efi_device_path; +#define EFI_BITS_PER_LONG BITS_PER_LONG + +/* With 64-bit EFI stub, EFI_BITS_PER_LONG has to be 64 */ +#ifdef CONFIG_EFI_STUB_64BIT +#undef EFI_BITS_PER_LONG +#define EFI_BITS_PER_LONG 64 +#endif + #define EFI_SUCCESS 0 -#define EFI_LOAD_ERROR (1 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_INVALID_PARAMETER (2 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_UNSUPPORTED (3 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_BAD_BUFFER_SIZE (4 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_BUFFER_TOO_SMALL (5 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_NOT_READY (6 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_DEVICE_ERROR (7 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_WRITE_PROTECTED (8 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_OUT_OF_RESOURCES (9 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_ACCESS_DENIED (15 | (1UL << (BITS_PER_LONG - 1))) -#define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG - 1))) +#define EFI_LOAD_ERROR (1 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_INVALID_PARAMETER (2 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_UNSUPPORTED (3 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_BAD_BUFFER_SIZE (4 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_BUFFER_TOO_SMALL (5 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_NOT_READY (6 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_DEVICE_ERROR (7 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_WRITE_PROTECTED (8 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_OUT_OF_RESOURCES (9 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_NOT_FOUND (14 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_ACCESS_DENIED (15 | (1UL << (EFI_BITS_PER_LONG - 1))) +#define EFI_SECURITY_VIOLATION (26 | (1UL << (EFI_BITS_PER_LONG - 1))) typedef unsigned long efi_status_t; typedef u64 efi_physical_addr_t; -- cgit v1.1