linux-kernel - [PATCH -next v2] KVM: PPC: Book3S HV: XIVE: Convert to DEFINE_SHOW

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Date:   Sat, 19 Sep 2020 09:29:25 +0800
From:   Qinglang Miao <miaoqinglang@...wei.com>
To:     Paul Mackerras <paulus@...abs.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:     <kvm-ppc@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
        <linux-kernel@...r.kernel.org>,
        Qinglang Miao <miaoqinglang@...wei.com>
Subject: [PATCH -next v2] KVM: PPC: Book3S HV: XIVE: Convert to DEFINE_SHOW_ATTRIBUTE

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Qinglang Miao <miaoqinglang@...wei.com>
---
v2: based on linux-next(20200917), and can be applied to
    mainline cleanly now.

 arch/powerpc/kvm/book3s_xive_native.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_xive_native.c b/arch/powerpc/kvm/book3s_xive_native.c
index bdea91df1..d0c2db0e0 100644
--- a/arch/powerpc/kvm/book3s_xive_native.c
+++ b/arch/powerpc/kvm/book3s_xive_native.c
@@ -1227,17 +1227,7 @@ static int xive_native_debug_show(struct seq_file *m, void *private)
 	return 0;
 }
 
-static int xive_native_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, xive_native_debug_show, inode->i_private);
-}
-
-static const struct file_operations xive_native_debug_fops = {
-	.open = xive_native_debug_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(xive_native_debug);
 
 static void xive_native_debugfs_init(struct kvmppc_xive *xive)
 {
-- 
2.23.0