[PATCH bpf-next] bpf: arm64: fix sparse warnings

[PATCH bpf-next] bpf: arm64: fix sparse warnings

[Puranjay Mohan]

ctx->image is declared as __le32 because arm64 instructions are LE
regardless of CPU's runtime endianness. emit_u32_data() emits raw data
and not instructions so cast the value to __le32 to fix the sparse
warning.

Cast function pointer to void * before doing arithmetic.

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
---
 arch/arm64/net/bpf_jit_comp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index b6eb7a465ad2..0c4d44bcfbf4 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -118,7 +118,7 @@ static inline void emit(const u32 insn, struct jit_ctx *ctx)
 static inline void emit_u32_data(const u32 data, struct jit_ctx *ctx)
 {
 	if (ctx->image != NULL && ctx->write)
-		ctx->image[ctx->idx] = data;
+		ctx->image[ctx->idx] = (__force __le32)data;
 
 	ctx->idx++;
 }
@@ -3139,7 +3139,7 @@ void bpf_jit_free(struct bpf_prog *prog)
 			bpf_jit_binary_pack_finalize(jit_data->ro_header, jit_data->header);
 			kfree(jit_data);
 		}
-		prog->bpf_func -= cfi_get_offset();
+		prog->bpf_func = (void *)prog->bpf_func - cfi_get_offset();
 		hdr = bpf_jit_binary_pack_hdr(prog);
 		bpf_jit_binary_pack_free(hdr, NULL);
 		priv_stack_ptr = prog->aux->priv_stack_ptr;

base-commit: ec439c38013550420aecc15988ae6acb670838c1
-- 
2.47.3