Re: [PATCH bpf-next 01/15] selftests/bpf: Fix the u64_offset_to_skb_data test

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On Wed, Dec 20, 2023 at 11:39:59PM +0200, Maxim Mikityanskiy wrote:
> From: Maxim Mikityanskiy <maxim@xxxxxxxxxxxxx>
> 
> The u64_offset_to_skb_data test is supposed to make a 64-bit fill, but
> instead makes a 16-bit one. Fix the test according to its intention. The
> 16-bit fill is covered by u16_offset_to_skb_data.

Cover letter mentioned

  Patch 1 (Maxim): Fix for an existing test, it will matter later in the
  series.

However no subsequent patch touch upon u64_offset_to_skb_data(). Was the
followup missing from this series?

> Signed-off-by: Maxim Mikityanskiy <maxim@xxxxxxxxxxxxx>
> [...]
>  SEC("tc")
>  __description("Spill u32 const scalars.  Refill as u64.  Offset to skb->data")
> -__failure __msg("invalid access to packet")
> +__failure __msg("math between pkt pointer and register with unbounded min value is not allowed")
>  __naked void u64_offset_to_skb_data(void)
>  {
>  	asm volatile ("					\
> @@ -253,7 +253,7 @@ __naked void u64_offset_to_skb_data(void)
>  	w7 = 20;					\
>  	*(u32*)(r10 - 4) = r6;				\
>  	*(u32*)(r10 - 8) = r7;				\
> -	r4 = *(u16*)(r10 - 8);				\
> +	r4 = *(u64*)(r10 - 8);				\
>  	r0 = r2;					\
>  	/* r0 += r4 R0=pkt R2=pkt R3=pkt_end R4=umax=65535 */\
>  	r0 += r4;					\




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