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authorLv Zheng <lv.zheng@intel.com>2014-07-08 10:07:06 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-08 14:22:26 +0200
commit2e70da4c51eb18a4d229aa48763c15f5dbc5b43d (patch)
tree27bbb3864f794852a673f016f4e5be60720f331e /drivers/acpi/acpica
parent80a648c12e4bda45c4f1bb93d83184fb3010ac12 (diff)
downloadop-kernel-dev-2e70da4c51eb18a4d229aa48763c15f5dbc5b43d.zip
op-kernel-dev-2e70da4c51eb18a4d229aa48763c15f5dbc5b43d.tar.gz
ACPICA: Utilities: Introduce acpi_log_error() to improve portability
Invocations like fprintf(stderr) and perror() are not portable, this patch introduces acpi_log_error() as a replacement, it is implemented using new portable API - acpi_ut_file_vprintf(). Note that though acpi_os_initialize() need to be invoked prior than using this new API, since no users are introduced in this patch, such invocations are not added for applications that link utprint.c in this patch. Futher patches that introduce users of acpi_log_error() should take care of this. This patch is only useful for ACPICA applications, most of which are not shipped in the Linux kernel. Note that follow-up commits will update acpidump to use this new API to improve portability. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica')
-rw-r--r--drivers/acpi/acpica/utdebug.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 21a20ac..e516254 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -561,3 +561,29 @@ acpi_ut_ptr_exit(u32 line_number,
}
#endif
+
+#ifdef ACPI_APPLICATION
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_log_error
+ *
+ * PARAMETERS: format - Printf format field
+ * ... - Optional printf arguments
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print error message to the console, used by applications.
+ *
+ ******************************************************************************/
+
+void ACPI_INTERNAL_VAR_XFACE acpi_log_error(const char *format, ...)
+{
+ va_list args;
+
+ va_start(args, format);
+ (void)acpi_ut_file_vprintf(ACPI_FILE_ERR, format, args);
+ va_end(args);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_log_error)
+#endif
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