Starting with commit 867a6ac86dd8 ("efi: Add start-up library code"), sparse constantly complains about truncated constant value in efi.h:
include/efi.h:176:35: warning: cast truncates bits from constant value (8000000000000000 becomes 0)
This can get quite noisy, preventing real issues to be noticed:
$ make defconfig *** Default configuration is based on 'sandbox_defconfig' $ make C=2 -j12 2>&1 | grep truncates | wc -l 441
After the patch is applied: $ make C=2 -j12 2>&1 | grep truncates | wc -l 0 $ sparse --version v0.5.2
Fixes: 867a6ac86dd8 ("efi: Add start-up library code") Signed-off-by: Eugeniu Rosca erosca@de.adit-jv.com --- include/efi.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/efi.h b/include/efi.h index 0fe15e65c06c..3e3f23b42f8a 100644 --- a/include/efi.h +++ b/include/efi.h @@ -172,11 +172,11 @@ enum { EFI_MEMORY_RP_SHIFT = 13, /* read-protect */ EFI_MEMORY_XP_SHIFT = 14, /* execute-protect */ EFI_MEMORY_RUNTIME_SHIFT = 63, /* range requires runtime mapping */ - - EFI_MEMORY_RUNTIME = 1ULL << EFI_MEMORY_RUNTIME_SHIFT, - EFI_MEM_DESC_VERSION = 1, };
+#define EFI_MEMORY_RUNTIME (1ULL << EFI_MEMORY_RUNTIME_SHIFT) +#define EFI_MEM_DESC_VERSION 1 + #define EFI_PAGE_SHIFT 12 #define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT) #define EFI_PAGE_MASK (EFI_PAGE_SIZE - 1)