tools: Remove unnecessary variables

There are several places where warnings variables are not needed,
remove them and directly return 0.

Signed-off-by: Lu Hongfei <luhongfei@vivo.com>
Link: https://lore.kernel.org/r/20230530075649.21661-1-luhongfei@vivo.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index a13c257..4b869de 100644 (file)
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -3799,7 +3799,7 @@ static int validate_unwind_hints(struct objtool_file *file, struct section *sec)
 static int validate_unret(struct objtool_file *file, struct instruction *insn)
 {
        struct instruction *next, *dest;
-       int ret, warnings = 0;
+       int ret;
 
        for (;;) {
                next = next_insn_to_validate(file, insn);
@@ -3897,7 +3897,7 @@ static int validate_unret(struct objtool_file *file, struct instruction *insn)
                insn = next;
        }
 
-       return warnings;
+       return 0;
 }
 
 /*
@@ -4132,7 +4132,6 @@ static int add_prefix_symbols(struct objtool_file *file)
 {
        struct section *sec;
        struct symbol *func;
-       int warnings = 0;
 
        for_each_sec(file, sec) {
                if (!(sec->sh.sh_flags & SHF_EXECINSTR))
@@ -4146,7 +4145,7 @@ static int add_prefix_symbols(struct objtool_file *file)
                }
        }
 
-       return warnings;
+       return 0;
 }
 
 static int validate_symbol(struct objtool_file *file, struct section *sec,