From: Yuanjie Huang Date: Thu, 2 Mar 2017 09:43:56 +0000 (+0100) Subject: Fix alignment trap triggered by NEON instructions X-Git-Tag: v2.0.1~28 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7d026a85946a08b8167dcd792ea6660bf6a49e08;p=mtd-utils.git Fix alignment trap triggered by NEON instructions NEON instruction VLD1.64 was used to copy 64 bits data after type casting, and they will trigger alignment trap. This patch uses memcpy to avoid alignment problem. Signed-off-by: Yuanjie Huang Signed-off-by: David Oberhollenzer --- diff --git a/ubifs-utils/mkfs.ubifs/key.h b/ubifs-utils/mkfs.ubifs/key.h index 39379fd..118858b 100644 --- a/ubifs-utils/mkfs.ubifs/key.h +++ b/ubifs-utils/mkfs.ubifs/key.h @@ -159,10 +159,12 @@ static inline void data_key_init(union ubifs_key *key, ino_t inum, */ static inline void key_write(const union ubifs_key *from, void *to) { - union ubifs_key *t = to; + __le32 x[2]; - t->j32[0] = cpu_to_le32(from->u32[0]); - t->j32[1] = cpu_to_le32(from->u32[1]); + x[0] = cpu_to_le32(from->u32[0]); + x[1] = cpu_to_le32(from->u32[1]); + + memcpy(to, &x, 8); memset(to + 8, 0, UBIFS_MAX_KEY_LEN - 8); } @@ -174,10 +176,12 @@ static inline void key_write(const union ubifs_key *from, void *to) */ static inline void key_write_idx(const union ubifs_key *from, void *to) { - union ubifs_key *t = to; + __le32 x[2]; + + x[0] = cpu_to_le32(from->u32[0]); + x[1] = cpu_to_le32(from->u32[1]); - t->j32[0] = cpu_to_le32(from->u32[0]); - t->j32[1] = cpu_to_le32(from->u32[1]); + memcpy(to, &x, 8); } /**