linux-kernel - Re: [PATCH 1/1] cxl/pci: Convert PCIBIOS

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Date: Wed, 29 May 2024 08:30:34 -0500
From: Ira Weiny <ira.weiny@...el.com>
To: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Davidlohr Bueso <dave@...olabs.net>, Jonathan Cameron
	<jonathan.cameron@...wei.com>, Dave Jiang <dave.jiang@...el.com>, "Alison
 Schofield" <alison.schofield@...el.com>, Vishal Verma
	<vishal.l.verma@...el.com>, Ira Weiny <ira.weiny@...el.com>, Dan Williams
	<dan.j.williams@...el.com>, Ben Widawsky <bwidawsk@...nel.org>,
	<linux-cxl@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	<stable@...r.kernel.org>
Subject: Re: [PATCH 1/1] cxl/pci: Convert PCIBIOS_* return codes to errnos

Ilpo Järvinen wrote:
> pci_{read,write}_config_*word() and pcie_capability_read_word() return
> PCIBIOS_* codes, not usual errnos.
> 
> Fix return value checks to handle PCIBIOS_* return codes correctly by
> dropping < 0 from the check and convert the PCIBIOS_* return codes into
> errnos using pcibios_err_to_errno() before returning them.
> 
> Fixes: ce17ad0d5498 ("cxl: Wait Memory_Info_Valid before access memory related info")
> Fixes: 34e37b4c432c ("cxl/port: Enable HDM Capability after validating DVSEC Ranges")
> Fixes: 14d788740774 ("cxl/mem: Consolidate CXL DVSEC Range enumeration in the core")
> Fixes: 560f78559006 ("cxl/pci: Retrieve CXL DVSEC memory info")
> Cc: stable@...r.kernel.org
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>


Reviewed-by: Ira Weiny <ira.weiny@...el.com>

[snip]