netdev - Re: [PATCH bpf v2 4/5] bpf: Add kernel function call support in 32-bit ARM for EABI

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Message-ID: <8469b2d5-276b-9715-cf62-a5a724d438d7@huawei.com>
Date:   Tue, 8 Nov 2022 08:52:54 +0800
From:   Yang Jihong <yangjihong1@...wei.com>
To:     "Russell King (Oracle)" <linux@...linux.org.uk>
CC:     <ast@...nel.org>, <daniel@...earbox.net>, <andrii@...nel.org>,
        <martin.lau@...ux.dev>, <song@...nel.org>, <yhs@...com>,
        <john.fastabend@...il.com>, <kpsingh@...nel.org>, <sdf@...gle.com>,
        <haoluo@...gle.com>, <jolsa@...nel.org>,
        <illusionist.neo@...il.com>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <mykolal@...com>, <shuah@...nel.org>,
        <benjamin.tissoires@...hat.com>, <memxor@...il.com>,
        <asavkov@...hat.com>, <delyank@...com>, <bpf@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kselftest@...r.kernel.org>
Subject: Re: [PATCH bpf v2 4/5] bpf: Add kernel function call support in
 32-bit ARM for EABI

Hello,

On 2022/11/7 20:33, Russell King (Oracle) wrote:
> On Mon, Nov 07, 2022 at 05:20:31PM +0800, Yang Jihong wrote:
>> +bool bpf_jit_supports_kfunc_call(void)
>> +{
>> +	return true;
> 
> It would be far cleaner to make this:
> 
> 	return IS_ENABLED(CONFIG_AEABI);
> 
> So userspace knows that it isn't supported on OABI.
> 
Thanks for the suggestion, will change.

Thanks,
Yang
.