ACPI: configfs: Use sysfs_emit() in "show" functions

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>
This commit is contained in:
Andy Shevchenko 2021-07-15 17:16:50 +03:00 committed by Rafael J. Wysocki
parent e73f0f0ee7
commit ae57338716

View File

@ -103,7 +103,7 @@ static ssize_t acpi_table_signature_show(struct config_item *cfg, char *str)
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(struct config_item *cfg, char *str)
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(struct config_item *cfg, char *str)
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(struct config_item *cfg, char *str)
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_show(struct config_item *cfg, char *str)
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_show(struct config_item *cfg, char *str)
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_id_show(struct config_item *cfg,
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_revision_show(struct config_item *cfg,
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);