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Message-Id: <20200923161404.17811-5-ardb@kernel.org>
Date: Wed, 23 Sep 2020 18:14:01 +0200
From: Ard Biesheuvel <ardb@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: linux-efi@...r.kernel.org, Ard Biesheuvel <ardb@...nel.org>,
Matthew Garrett <mjg59@...gle.com>,
Peter Jones <pjones@...hat.com>,
Kees Cook <keescook@...omium.org>,
Anton Vorontsov <anton@...msg.org>,
Colin Cross <ccross@...roid.com>,
Tony Luck <tony.luck@...el.com>
Subject: [PATCH 4/7] efi: gsmi: fix false dependency on CONFIG_EFI_VARS
The gsmi code does not actually rely on CONFIG_EFI_VARS, since it only
uses the efivars abstraction that is included unconditionally when
CONFIG_EFI is defined. CONFIG_EFI_VARS controls the inclusion of the
code that exposes the sysfs entries, and which has been deprecated for
some time.
Signed-off-by: Ard Biesheuvel <ardb@...nel.org>
---
drivers/firmware/google/Kconfig | 2 +-
drivers/firmware/google/gsmi.c | 8 ++++----
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/firmware/google/Kconfig b/drivers/firmware/google/Kconfig
index a3a6ca659ffa..97968aece54f 100644
--- a/drivers/firmware/google/Kconfig
+++ b/drivers/firmware/google/Kconfig
@@ -15,7 +15,7 @@ config GOOGLE_SMI
help
Say Y here if you want to enable SMI callbacks for Google
platforms. This provides an interface for writing to and
- clearing the event log. If EFI_VARS is also enabled this
+ clearing the event log. If CONFIG_EFI is also enabled this
driver provides an interface for reading and writing NVRAM
variables.
diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
index 5b2011ebbe26..7d9367b22010 100644
--- a/drivers/firmware/google/gsmi.c
+++ b/drivers/firmware/google/gsmi.c
@@ -302,7 +302,7 @@ static int gsmi_exec(u8 func, u8 sub)
return rc;
}
-#ifdef CONFIG_EFI_VARS
+#ifdef CONFIG_EFI
static struct efivars efivars;
@@ -483,7 +483,7 @@ static const struct efivar_operations efivar_ops = {
.get_next_variable = gsmi_get_next_variable,
};
-#endif /* CONFIG_EFI_VARS */
+#endif /* CONFIG_EFI */
static ssize_t eventlog_write(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
@@ -1007,7 +1007,7 @@ static __init int gsmi_init(void)
goto out_remove_bin_file;
}
-#ifdef CONFIG_EFI_VARS
+#ifdef CONFIG_EFI
ret = efivars_register(&efivars, &efivar_ops, gsmi_kobj);
if (ret) {
printk(KERN_INFO "gsmi: Failed to register efivars\n");
@@ -1047,7 +1047,7 @@ static void __exit gsmi_exit(void)
unregister_die_notifier(&gsmi_die_notifier);
atomic_notifier_chain_unregister(&panic_notifier_list,
&gsmi_panic_notifier);
-#ifdef CONFIG_EFI_VARS
+#ifdef CONFIG_EFI
efivars_unregister(&efivars);
#endif
--
2.17.1
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