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| author |   Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2017-06-28 16:58:03 +0200 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2017-06-30 17:11:28 +0100 |
| commit | 425e1ed73e6574e4fe186ec82fd37213cbd47df0 (patch) | |
| tree | f5c1b14561bd44748353c203903539e39bf222c1 | |
| parent | arm64: cpuinfo: constify attribute_group structures. (diff) | |
| download | linux-dev-425e1ed73e6574e4fe186ec82fd37213cbd47df0.tar.xz linux-dev-425e1ed73e6574e4fe186ec82fd37213cbd47df0.zip | |
arm64: fix endianness annotation for 'struct jit_ctx' and friends
struct jit_ctx::image is used the store a pointer to the jitted
intructions, which are always little-endian. These instructions
are thus correctly converted from native order to little-endian
before being stored but the pointer 'image' is declared as for
native order values.
Fix this by declaring the field as __le32* instead of u32*.
Same for the pointer used in jit_fill_hole() to initialize
the image.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
| -rw-r--r-- | arch/arm64/net/bpf_jit_comp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index 71f930501ade..bd2ac9912087 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -68,7 +68,7 @@ struct jit_ctx { int idx; int epilogue_offset; int *offset; - u32 *image; + __le32 *image; }; static inline void emit(const u32 insn, struct jit_ctx *ctx) @@ -128,7 +128,7 @@ static inline int bpf2a64_offset(int bpf_to, int bpf_from, static void jit_fill_hole(void *area, unsigned int size) { - u32 *ptr; + __le32 *ptr; /* We are guaranteed to have aligned memory. */ for (ptr = area; size >= sizeof(u32); size -= sizeof(u32)) *ptr++ = cpu_to_le32(AARCH64_BREAK_FAULT); @@ -871,7 +871,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog) /* 2. Now, the actual pass. */ - ctx.image = (u32 *)image_ptr; + ctx.image = (__le32 *)image_ptr; ctx.idx = 0; build_prologue(&ctx); |