[tip: x86/boot] decompress: Use 8 byte alignment

[tip-bot2 for Ard Biesheuvel]

The following commit has been merged into the x86/boot branch of tip:

Commit-ID:     8217ad0a435ff06d651d7298ea8ae8d72388179e
Gitweb:        https://git.kernel.org/tip/8217ad0a435ff06d651d7298ea8ae8d72388179e
Author:        Ard Biesheuvel <ardb@xxxxxxxxxx>
AuthorDate:    Mon, 07 Aug 2023 18:27:15 +02:00
Committer:     Borislav Petkov (AMD) <bp@xxxxxxxxx>
CommitterDate: Mon, 07 Aug 2023 20:55:27 +02:00

decompress: Use 8 byte alignment

The ZSTD decompressor requires malloc() allocations to be 8 byte
aligned, so ensure that this the case.

Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230807162720.545787-19-ardb@xxxxxxxxxx
---
 include/linux/decompress/mm.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 9192986..ac86242 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -48,7 +48,7 @@ MALLOC_VISIBLE void *malloc(int size)
 	if (!malloc_ptr)
 		malloc_ptr = free_mem_ptr;
 
-	malloc_ptr = (malloc_ptr + 3) & ~3;     /* Align */
+	malloc_ptr = (malloc_ptr + 7) & ~7;     /* Align */
 
 	p = (void *)malloc_ptr;
 	malloc_ptr += size;