This avoids printf() spam about file reads (such as loading an image) into unaligned buffers (and the associated memcpy()). And generally seems like a good idea.
Signed-off-by: Rob Clark robdclark@gmail.com --- lib/efi_loader/efi_memory.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index 9e079f1fa3..2ba8d8b42b 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -43,7 +43,7 @@ void *efi_bounce_buffer; */ struct efi_pool_allocation { u64 num_pages; - char data[]; + char data[] __attribute__((aligned(ARCH_DMA_MINALIGN))); };
/* @@ -356,7 +356,8 @@ efi_status_t efi_allocate_pool(int pool_type, unsigned long size, { efi_status_t r; efi_physical_addr_t t; - u64 num_pages = (size + sizeof(u64) + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT; + u64 num_pages = DIV_ROUND_UP(size + sizeof(struct efi_pool_allocation), + EFI_PAGE_SIZE);
if (size == 0) { *buffer = NULL;