linux-kernel - [GIT PULL] x86/apic fix

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Date:   Tue, 28 Jan 2020 17:35:30 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] x86/apic fix

Linus,

Please pull the latest x86-apic-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-apic-for-linus

   # HEAD: d0b7788804482b2689946cd8d910ac3e03126c8d x86/apic/uv: Avoid unused variable warning

A single commit that simplifies the code and gets rid of a compiler 
warning.

 Thanks,

	Ingo

------------------>
Arnd Bergmann (1):
      x86/apic/uv: Avoid unused variable warning


 arch/x86/kernel/apic/x2apic_uv_x.c | 43 ++++++--------------------------------
 1 file changed, 6 insertions(+), 37 deletions(-)

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index d5b51a740524..ad53b2abc859 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -1493,65 +1493,34 @@ static void check_efi_reboot(void)
 }
 
 /* Setup user proc fs files */
-static int proc_hubbed_show(struct seq_file *file, void *data)
+static int __maybe_unused proc_hubbed_show(struct seq_file *file, void *data)
 {
 	seq_printf(file, "0x%x\n", uv_hubbed_system);
 	return 0;
 }
 
-static int proc_hubless_show(struct seq_file *file, void *data)
+static int __maybe_unused proc_hubless_show(struct seq_file *file, void *data)
 {
 	seq_printf(file, "0x%x\n", uv_hubless_system);
 	return 0;
 }
 
-static int proc_oemid_show(struct seq_file *file, void *data)
+static int __maybe_unused proc_oemid_show(struct seq_file *file, void *data)
 {
 	seq_printf(file, "%s/%s\n", oem_id, oem_table_id);
 	return 0;
 }
 
-static int proc_hubbed_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, proc_hubbed_show, (void *)NULL);
-}
-
-static int proc_hubless_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, proc_hubless_show, (void *)NULL);
-}
-
-static int proc_oemid_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, proc_oemid_show, (void *)NULL);
-}
-
-/* (struct is "non-const" as open function is set at runtime) */
-static struct file_operations proc_version_fops = {
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-static const struct file_operations proc_oemid_fops = {
-	.open		= proc_oemid_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 static __init void uv_setup_proc_files(int hubless)
 {
 	struct proc_dir_entry *pde;
-	char *name = hubless ? "hubless" : "hubbed";
 
 	pde = proc_mkdir(UV_PROC_NODE, NULL);
-	proc_create("oemid", 0, pde, &proc_oemid_fops);
-	proc_create(name, 0, pde, &proc_version_fops);
+	proc_create_single("oemid", 0, pde, proc_oemid_show);
 	if (hubless)
-		proc_version_fops.open = proc_hubless_open;
+		proc_create_single("hubless", 0, pde, proc_hubless_show);
 	else
-		proc_version_fops.open = proc_hubbed_open;
+		proc_create_single("hubbed", 0, pde, proc_hubbed_show);
 }
 
 /* Initialize UV hubless systems */