Added logging flag to log_append() to change log behaviour

Valid flags are:

* LOGFL_NORMAL
Log all messages to the log context, and send log message to stderr
on errors

* LOGFL_NODUPS
Log only unique messages.  Duplicated messages will be removed

* LOGFL_NOSTDERR
Don't write to stderr, even if errors occur

1 files changed, 3 insertions, 2 deletions

diff --git a/src/efi.c b/src/efi.c
index af0a813..171ae30 100644
--- a/src/efi.c
+++ b/src/efi.c
@@ -76,8 +76,9 @@ int address_from_efi(Log_t *logp, size_t * address)
         if(fclose(efi_systab) != 0)
                 perror(filename);
 
-        if(ret == EFI_NO_SMBIOS)
-                log_append(logp, LOG_WARNING, "%s: SMBIOS entry point missing\n", filename);
+        if(ret == EFI_NO_SMBIOS) {
+                log_append(logp, LOGFL_NODUPS, LOG_WARNING, "%s: SMBIOS entry point missing\n", filename);
+        }
 
         return ret;
 }