write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/arch/mips/math-emu/me-debugfs.c
..
..
@@ -183,48 +183,28 @@
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 	return 0;
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 }
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-static int fpuemustats_clear_open(struct inode *inode, struct file *file)
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-{
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-	return single_open(file, fpuemustats_clear_show, inode->i_private);
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-}
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-
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-static const struct file_operations fpuemustats_clear_fops = {
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-	.open                   = fpuemustats_clear_open,
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-	.read			= seq_read,
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-	.llseek			= seq_lseek,
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-	.release		= single_release,
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-};
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+DEFINE_SHOW_ATTRIBUTE(fpuemustats_clear);
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 static int __init debugfs_fpuemu(void)
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 {
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 	struct dentry *fpuemu_debugfs_base_dir;
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 	struct dentry *fpuemu_debugfs_inst_dir;
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-	struct dentry *d, *reset_file;
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-
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-	if (!mips_debugfs_dir)
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-		return -ENODEV;
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+	char name[32];
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 	fpuemu_debugfs_base_dir = debugfs_create_dir("fpuemustats",
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 						     mips_debugfs_dir);
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-	if (!fpuemu_debugfs_base_dir)
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-		return -ENOMEM;
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-	reset_file = debugfs_create_file("fpuemustats_clear", 0444,
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-					 mips_debugfs_dir, NULL,
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-					 &fpuemustats_clear_fops);
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-	if (!reset_file)
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-		return -ENOMEM;
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+	debugfs_create_file("fpuemustats_clear", 0444, mips_debugfs_dir, NULL,
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+			    &fpuemustats_clear_fops);
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 #define FPU_EMU_STAT_OFFSET(m)						\
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 	offsetof(struct mips_fpu_emulator_stats, m)
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 #define FPU_STAT_CREATE(m)						\
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 do {									\
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-	d = debugfs_create_file(#m, 0444, fpuemu_debugfs_base_dir,	\
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+	debugfs_create_file(#m, 0444, fpuemu_debugfs_base_dir,		\
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 				(void *)FPU_EMU_STAT_OFFSET(m),		\
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 				&fops_fpuemu_stat);			\
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-	if (!d)								\
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-		return -ENOMEM;						\
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 } while (0)
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 	FPU_STAT_CREATE(emulated);
..
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@@ -243,20 +223,14 @@
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 	fpuemu_debugfs_inst_dir = debugfs_create_dir("instructions",
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 						     fpuemu_debugfs_base_dir);
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-	if (!fpuemu_debugfs_inst_dir)
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-		return -ENOMEM;
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 #define FPU_STAT_CREATE_EX(m)						\
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 do {									\
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-	char name[32];							\
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-									\
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 	adjust_instruction_counter_name(name, #m);			\
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 									\
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-	d = debugfs_create_file(name, 0444, fpuemu_debugfs_inst_dir,	\
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+	debugfs_create_file(name, 0444, fpuemu_debugfs_inst_dir,	\
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 				(void *)FPU_EMU_STAT_OFFSET(m),		\
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 				&fops_fpuemu_stat);			\
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-	if (!d)								\
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-		return -ENOMEM;						\
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 } while (0)
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 	FPU_STAT_CREATE_EX(abs_s);