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 <robdcl...@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;
--
2.13.0
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