FGRAPH_MAX_INDEX has no user, and it expands to FGRAPH_INDEX_SIZE and
FGRAPH_RET_INDEX, neither of which is defined anywhere in the tree. It
was added in that form by commit 91c46b0aa917 ("function_graph:
Implement fgraph_reserve_data() and fgraph_retrieve_data()"), which
introduced the current data word layout under new names, so anything
referencing it would have failed to build ever since.Remove it. Signed-off-by: Donggeun Yoo <[email protected]> --- Found while reading the shadow stack word layout. The macro is dead in both senses: nothing references it, and it could not be used as it is. Compile-tested only, with CONFIG_FUNCTION_GRAPH_TRACER=y and CONFIG_DYNAMIC_FTRACE=y. Removing an unreferenced macro cannot change generated code, so there is nothing to test at run time. kernel/trace/fgraph.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/kernel/trace/fgraph.c b/kernel/trace/fgraph.c index 40d373d65f9b..ed455b53513b 100644 --- a/kernel/trace/fgraph.c +++ b/kernel/trace/fgraph.c @@ -143,9 +143,6 @@ enum { #define FGRAPH_DATA_INDEX_MASK GENMASK(FGRAPH_DATA_INDEX_BITS - 1, 0) #define FGRAPH_DATA_INDEX_SHIFT (FGRAPH_DATA_SHIFT + FGRAPH_DATA_BITS) -#define FGRAPH_MAX_INDEX \ - ((FGRAPH_INDEX_SIZE << FGRAPH_DATA_BITS) + FGRAPH_RET_INDEX) - #define FGRAPH_ARRAY_SIZE FGRAPH_INDEX_BITS /* -- 2.53.0
