* [PATCH] [v2] tools/objtool: Fix unnecessary jumps
@ 2020-08-11 4:18 Youling Tang
2020-08-11 15:24 ` Kamalesh Babulal
0 siblings, 1 reply; 2+ messages in thread
From: Youling Tang @ 2020-08-11 4:18 UTC (permalink / raw)
To: Josh Poimboeuf, Peter Zijlstra, Kamalesh Babulal; +Cc: linux-kernel
There is no need to jump to the "out" tag when "ret < 0", just return
directly to "ret".
Signed-off-by: Youling Tang <tangyouling@loongson.cn>
---
tools/objtool/check.c | 30 ++++++++++--------------------
1 file changed, 10 insertions(+), 20 deletions(-)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index e034a8f..b9bfcb5 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2799,19 +2799,19 @@ int check(const char *_objname, bool orc)
ret = decode_sections(&file);
if (ret < 0)
- goto out;
+ return ret;
warnings += ret;
if (list_empty(&file.insn_list))
- goto out;
+ return ret;
if (vmlinux && !validate_dup) {
ret = validate_vmlinux_functions(&file);
if (ret < 0)
- goto out;
+ return ret;
warnings += ret;
- goto out;
+ return 0;
}
if (retpoline) {
@@ -2823,45 +2823,35 @@ int check(const char *_objname, bool orc)
ret = validate_functions(&file);
if (ret < 0)
- goto out;
+ return ret;
warnings += ret;
ret = validate_unwind_hints(&file, NULL);
if (ret < 0)
- goto out;
+ return ret;
warnings += ret;
if (!warnings) {
ret = validate_reachable_instructions(&file);
if (ret < 0)
- goto out;
+ return ret;
warnings += ret;
}
if (orc) {
ret = create_orc(&file);
if (ret < 0)
- goto out;
+ return ret;
ret = create_orc_sections(&file);
if (ret < 0)
- goto out;
+ return ret;
}
if (file.elf->changed) {
ret = elf_write(file.elf);
if (ret < 0)
- goto out;
- }
-
-out:
- if (ret < 0) {
- /*
- * Fatal error. The binary is corrupt or otherwise broken in
- * some way, or objtool itself is broken. Fail the kernel
- * build.
- */
- return ret;
+ return ret;
}
return 0;
--
2.1.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] [v2] tools/objtool: Fix unnecessary jumps
2020-08-11 4:18 [PATCH] [v2] tools/objtool: Fix unnecessary jumps Youling Tang
@ 2020-08-11 15:24 ` Kamalesh Babulal
0 siblings, 0 replies; 2+ messages in thread
From: Kamalesh Babulal @ 2020-08-11 15:24 UTC (permalink / raw)
To: Youling Tang, Josh Poimboeuf, Peter Zijlstra; +Cc: linux-kernel
On 11/08/20 9:48 am, Youling Tang wrote:
> There is no need to jump to the "out" tag when "ret < 0", just return
> directly to "ret".
>
> Signed-off-by: Youling Tang <tangyouling@loongson.cn>
the patch looks good to me, the commit message doesn't explain the
reason for the change. It can be written like:
"Previously cleanup() function was called under the out label for both
fatal errors (ret < 0) and warnings. Now that cleanup() function is
removed, the out label is no longer required. Remove it and return
immediately for the fatal errors with ret as return code and 0 for
warnings."
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
--
Kamalesh
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2020-08-11 15:25 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-08-11 4:18 [PATCH] [v2] tools/objtool: Fix unnecessary jumps Youling Tang
2020-08-11 15:24 ` Kamalesh Babulal
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).