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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2a49dad0aefsm45188960eec.3.2025.11.18.08.02.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Nov 2025 08:02:43 -0800 (PST) Date: Tue, 18 Nov 2025 08:02:39 -0800 From: Stephen Hemminger To: Daniel Zahka Cc: Jiri Pirko , "David S. Miller" , Jakub Kicinski , Paolo Abeni , Simon Horman , Donald Hunter , David Ahern , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH iproute2-next 1/2] devlink: Pull the value printing logic out of pr_out_param_value() Message-ID: <20251118080239.405507d6@phoenix.local> In-Reply-To: <20251117-param-defaults-v1-1-c99604175d09@gmail.com> References: <20251117-param-defaults-v1-0-c99604175d09@gmail.com> <20251117-param-defaults-v1-1-c99604175d09@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Mon, 17 Nov 2025 16:40:02 -0800 Daniel Zahka wrote: > - print_uint(PRINT_ANY, "value", " value %u", > + snprintf(format_str, sizeof(format_str), " %s %%u", label); > + print_uint(PRINT_ANY, label, format_str, The problem with generating format strings is that it makes it difficult to impossible to use any of the compiler format validation flags.