From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Thu, 15 Jul 2021 17:16:50 +0300
Subject: ACPI: configfs: Use sysfs_emit() in "show" functions
Patch-mainline: v5.15-rc1
Git-commit: ae57338716ce2e230514be54a06c9bfaa84433a7
References: jsc#SLE-19223

The sysfs_emit() function was introduced to make it less ambiguous
which function is preferred when writing to the output buffer in
a "show" callback [1].

Convert the GPIO library sysfs interface from sprintf() to sysfs_emit()
accordingly, as the latter is aware of the PAGE_SIZE buffer and correctly
returns the number of bytes written into the buffer.

No functional change intended.

[1] Documentation/filesystems/sysfs.rst

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Lee, Chun-Yi <jlee@suse.com>
---
 drivers/acpi/acpi_configfs.c |   16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

--- a/drivers/acpi/acpi_configfs.c
+++ b/drivers/acpi/acpi_configfs.c
@@ -103,7 +103,7 @@ static ssize_t acpi_table_signature_show
 	if (!h)
 		return -EINVAL;
 
-	return sprintf(str, "%.*s\n", ACPI_NAMESEG_SIZE, h->signature);
+	return sysfs_emit(str, "%.*s\n", ACPI_NAMESEG_SIZE, h->signature);
 }
 
 static ssize_t acpi_table_length_show(struct config_item *cfg, char *str)
@@ -113,7 +113,7 @@ static ssize_t acpi_table_length_show(st
 	if (!h)
 		return -EINVAL;
 
-	return sprintf(str, "%d\n", h->length);
+	return sysfs_emit(str, "%d\n", h->length);
 }
 
 static ssize_t acpi_table_revision_show(struct config_item *cfg, char *str)
@@ -123,7 +123,7 @@ static ssize_t acpi_table_revision_show(
 	if (!h)
 		return -EINVAL;
 
-	return sprintf(str, "%d\n", h->revision);
+	return sysfs_emit(str, "%d\n", h->revision);
 }
 
 static ssize_t acpi_table_oem_id_show(struct config_item *cfg, char *str)
@@ -133,7 +133,7 @@ static ssize_t acpi_table_oem_id_show(st
 	if (!h)
 		return -EINVAL;
 
-	return sprintf(str, "%.*s\n", ACPI_OEM_ID_SIZE, h->oem_id);
+	return sysfs_emit(str, "%.*s\n", ACPI_OEM_ID_SIZE, h->oem_id);
 }
 
 static ssize_t acpi_table_oem_table_id_show(struct config_item *cfg, char *str)
@@ -143,7 +143,7 @@ static ssize_t acpi_table_oem_table_id_s
 	if (!h)
 		return -EINVAL;
 
-	return sprintf(str, "%.*s\n", ACPI_OEM_TABLE_ID_SIZE, h->oem_table_id);
+	return sysfs_emit(str, "%.*s\n", ACPI_OEM_TABLE_ID_SIZE, h->oem_table_id);
 }
 
 static ssize_t acpi_table_oem_revision_show(struct config_item *cfg, char *str)
@@ -153,7 +153,7 @@ static ssize_t acpi_table_oem_revision_s
 	if (!h)
 		return -EINVAL;
 
-	return sprintf(str, "%d\n", h->oem_revision);
+	return sysfs_emit(str, "%d\n", h->oem_revision);
 }
 
 static ssize_t acpi_table_asl_compiler_id_show(struct config_item *cfg,
@@ -164,7 +164,7 @@ static ssize_t acpi_table_asl_compiler_i
 	if (!h)
 		return -EINVAL;
 
-	return sprintf(str, "%.*s\n", ACPI_NAMESEG_SIZE, h->asl_compiler_id);
+	return sysfs_emit(str, "%.*s\n", ACPI_NAMESEG_SIZE, h->asl_compiler_id);
 }
 
 static ssize_t acpi_table_asl_compiler_revision_show(struct config_item *cfg,
@@ -175,7 +175,7 @@ static ssize_t acpi_table_asl_compiler_r
 	if (!h)
 		return -EINVAL;
 
-	return sprintf(str, "%d\n", h->asl_compiler_revision);
+	return sysfs_emit(str, "%d\n", h->asl_compiler_revision);
 }
 
 CONFIGFS_ATTR_RO(acpi_table_, signature);