main/haveged: fix for armhf and aarch64

armhf and aarch64 apparently does not expose the cpu cache size via
sysfs. It set it to -1 and that confuses haveged. Make it fallback to
default cache size when sysfs reports -1.

1 files changed, 15 insertions, 0 deletions

diff --git a/main/haveged/fix-cpu-cache-size-detection.patch b/main/haveged/fix-cpu-cache-size-detection.patch
new file mode 100644
index 0000000000..07da2b46d9
--- /dev/null
+++ b/main/haveged/fix-cpu-cache-size-detection.patch
@@ -0,0 +1,15 @@
+Some ARM cpus does not report the cache size or say it is -1
+
+diff --git a/src/havegetune.c b/src/havegetune.c
+index f1a99f2..de39c53 100644
+--- a/src/havegetune.c
++++ b/src/havegetune.c
+@@ -795,6 +795,8 @@ static int vfs_configInfoCache(
+          ctype = vfs_configFile(pAnchor, path, vfs_configType);
+          strcpy(path+plen, "size");
+          size  = vfs_configFile(pAnchor, path, vfs_configInt);
++	 if (size == -1)
++		 size = ctype == 'I' ? GENERIC_ICACHE : GENERIC_DCACHE;
+          cfg_cacheAdd(pAnchor, SRC_VFS_INDEX,  pArgs[1], level, ctype, size);
+          }
+      }