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bpf: arm64: Fix sparse warnings

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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>
Link: https://lore.kernel.org/r/20251219191310.3204425-1-puranjay@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Puranjay Mohan 2025-12-19 11:13:08 -08:00 committed by Alexei Starovoitov
parent d2749ae85a
commit f785a31395
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/net/bpf_jit_comp.c
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@ -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;