From: Niklas Cassel <cassel@kernel.org>
To: Koichiro Den <den@valinux.co.jp>
Cc: "Manivannan Sadhasivam" <mani@kernel.org>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
"Kishon Vijay Abraham I" <kishon@kernel.org>,
"Christian Bruel" <christian.bruel@foss.st.com>,
"Arnd Bergmann" <arnd@arndb.de>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] misc: pci_endpoint_test: Use -EINVAL for small subrange size
Date: Fri, 20 Mar 2026 15:03:55 +0100 [thread overview]
Message-ID: <ab1Ty2yu9Hv_LPxd@ryzen> (raw)
In-Reply-To: <20260320140139.2415480-1-den@valinux.co.jp>
On Fri, Mar 20, 2026 at 11:01:39PM +0900, Koichiro Den wrote:
> The sub_size check ensures that each subrange is large enough for 32-bit
> accesses. Subranges smaller than sizeof(u32) do not satisfy this
> assumption, so this is a local sanity check rather than a resource
> exhaustion case.
>
> Return -EINVAL instead of -ENOSPC for this case.
>
> Suggested-by: Niklas Cassel <cassel@kernel.org>
> Signed-off-by: Koichiro Den <den@valinux.co.jp>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
prev parent reply other threads:[~2026-03-20 14:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-20 14:01 [PATCH] misc: pci_endpoint_test: Use -EINVAL for small subrange size Koichiro Den
2026-03-20 14:03 ` Niklas Cassel [this message]
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