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([2620:10d:c092:500::7:916f]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48a7c33f51asm46930525e9.0.2026.04.29.05.37.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Apr 2026 05:37:05 -0700 (PDT) Message-ID: <65f719480ccc5544ee2880a5eb2565848ba5cfec.camel@gmail.com> Subject: Re: [PATCH bpf-next 06/18] bpf: Prepare architecture JIT support for stack arguments From: Eduard Zingerman To: Yonghong Song , bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , "Jose E . Marchesi" , kernel-team@fb.com, Martin KaFai Lau , Puranjay Mohan Date: Wed, 29 Apr 2026 05:37:04 -0700 In-Reply-To: <20260424171504.2039094-1-yonghong.song@linux.dev> References: <20260424171433.2034470-1-yonghong.song@linux.dev> <20260424171504.2039094-1-yonghong.song@linux.dev> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.3 (3.58.3-1.fc43) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2026-04-24 at 10:15 -0700, Yonghong Song wrote: > Add bpf_jit_supports_stack_args() as a weak function defaulting to > false. Architectures that implement JIT support for stack arguments > override it to return true. >=20 > Reject BPF functions and kfuncs with more than 5 parameters at > verification time if the architecture does not support stack > arguments. >=20 > Acked-by: Puranjay Mohan > Signed-off-by: Yonghong Song > --- Acked-by: Eduard Zingerman [...]