Commit f785a313 authored by Puranjay Mohan's avatar Puranjay Mohan Committed by Alexei Starovoitov
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bpf: arm64: Fix sparse warnings 



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: default avatarPuranjay Mohan <puranjay@kernel.org>
Link: https://lore.kernel.org/r/20251219191310.3204425-1-puranjay@kernel.org


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent d2749ae8

arch/arm64/net/bpf_jit_comp.c

+2 −2
Original line number Diff line number Diff line
@@ -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;