linux-kernel - [PATCH v3 2/8] platform/x86/intel/ifs: IFS cleanup

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Date:   Tue, 28 Feb 2023 17:59:36 -0800
From:   Jithu Joseph <jithu.joseph@...el.com>
To:     hdegoede@...hat.com, markgross@...nel.org
Cc:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        gregkh@...uxfoundation.org, rostedt@...dmis.org,
        jithu.joseph@...el.com, ashok.raj@...el.com, tony.luck@...el.com,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        patches@...ts.linux.dev, ravi.v.shankar@...el.com,
        thiago.macieira@...el.com, athenas.jimenez.gonzalez@...el.com,
        sohil.mehta@...el.com
Subject: [PATCH v3 2/8] platform/x86/intel/ifs: IFS cleanup

Cleanup incorporating misc review comments

 - Remove the subdirectory intel_ifs/0 for devicenode [1]
 - Make plat_ifs_groups non static and use it directly without using a
    function [2]

Link: https://lore.kernel.org/lkml/Y+4kQOtrHt5pdsSO@kroah.com/ [1]
Link: https://lore.kernel.org/lkml/Y9nyxNesVHCUXAcH@kroah.com/  [2]

Signed-off-by: Jithu Joseph <jithu.joseph@...el.com>
Reviewed-by: Tony Luck <tony.luck@...el.com>
---
 drivers/platform/x86/intel/ifs/ifs.h   | 2 +-
 drivers/platform/x86/intel/ifs/core.c  | 6 +++---
 drivers/platform/x86/intel/ifs/sysfs.c | 9 +--------
 3 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/platform/x86/intel/ifs/ifs.h b/drivers/platform/x86/intel/ifs/ifs.h
index e07463c794d4..ab168ddf28f1 100644
--- a/drivers/platform/x86/intel/ifs/ifs.h
+++ b/drivers/platform/x86/intel/ifs/ifs.h
@@ -246,6 +246,6 @@ static inline struct ifs_data *ifs_get_data(struct device *dev)
 extern bool *ifs_pkg_auth;
 int ifs_load_firmware(struct device *dev);
 int do_core_test(int cpu, struct device *dev);
-const struct attribute_group **ifs_get_groups(void);
+extern struct attribute *plat_ifs_attrs[];
 
 #endif
diff --git a/drivers/platform/x86/intel/ifs/core.c b/drivers/platform/x86/intel/ifs/core.c
index b518b661daf0..62c44dbae757 100644
--- a/drivers/platform/x86/intel/ifs/core.c
+++ b/drivers/platform/x86/intel/ifs/core.c
@@ -20,6 +20,8 @@ static const struct x86_cpu_id ifs_cpu_ids[] __initconst = {
 };
 MODULE_DEVICE_TABLE(x86cpu, ifs_cpu_ids);
 
+ATTRIBUTE_GROUPS(plat_ifs);
+
 bool *ifs_pkg_auth;
 
 static struct ifs_device ifs_device = {
@@ -29,8 +31,8 @@ static struct ifs_device ifs_device = {
 	},
 	.misc = {
 		.name = "intel_ifs_0",
-		.nodename = "intel_ifs/0",
 		.minor = MISC_DYNAMIC_MINOR,
+		.groups = plat_ifs_groups,
 	},
 };
 
@@ -53,8 +55,6 @@ static int __init ifs_init(void)
 	if (rdmsrl_safe(MSR_INTEGRITY_CAPS, &msrval))
 		return -ENODEV;
 
-	ifs_device.misc.groups = ifs_get_groups();
-
 	if (!(msrval & BIT(ifs_device.ro_data.integrity_cap_bit)))
 		return -ENODEV;
 
diff --git a/drivers/platform/x86/intel/ifs/sysfs.c b/drivers/platform/x86/intel/ifs/sysfs.c
index ee636a76b083..2007d8054f04 100644
--- a/drivers/platform/x86/intel/ifs/sysfs.c
+++ b/drivers/platform/x86/intel/ifs/sysfs.c
@@ -141,7 +141,7 @@ static ssize_t image_version_show(struct device *dev,
 static DEVICE_ATTR_RO(image_version);
 
 /* global scan sysfs attributes */
-static struct attribute *plat_ifs_attrs[] = {
+struct attribute *plat_ifs_attrs[] = {
 	&dev_attr_details.attr,
 	&dev_attr_status.attr,
 	&dev_attr_run_test.attr,
@@ -149,10 +149,3 @@ static struct attribute *plat_ifs_attrs[] = {
 	&dev_attr_image_version.attr,
 	NULL
 };
-
-ATTRIBUTE_GROUPS(plat_ifs);
-
-const struct attribute_group **ifs_get_groups(void)
-{
-	return plat_ifs_groups;
-}
-- 
2.25.1