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	Tue, 22 Jul 2025 05:36:56 +0000
Date: Mon, 21 Jul 2025 22:36:56 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Sergey Bashirov <sergeybashirov@gmail.com>
Cc: Chuck Lever <chuck.lever@oracle.com>, Jeff Layton <jlayton@kernel.org>,
	NeilBrown <neil@brown.name>,
	Olga Kornievskaia <okorniev@redhat.com>,
	Dai Ngo <Dai.Ngo@oracle.com>, Tom Talpey <tom@talpey.com>,
	linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] NFSD: Rework encoding and decoding of nfsd4_deviceid
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References: <20250721145215.132666-1-sergeybashirov@gmail.com>
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On Mon, Jul 21, 2025 at 05:48:55PM +0300, Sergey Bashirov wrote:
> Compilers may optimize the layout of C structures,

By interpreting the standard in the most hostile way: yes.
In practice: no.

Just about every file system on-disk format and every network wire
protocol depends on the compiler not "optimizing" properly padded
C structures.