Thread (2 messages) flat view 2 messages, 2 authors, 2021-04-23

Re: [PATCH v2] kallsyms: Remove function arch_get_kallsym()

From: Yonghong Song <hidden>
Date: 2021-04-23 06:18:47
Also in: bpf, lkml


On 4/22/21 2:49 AM, Jiapeng Chong wrote:
quoted hunk ↗ jump to hunk
Fix the following sparse warning:

kernel/kallsyms.c:457:12: warning: symbol 'arch_get_kallsym' was not
declared. Should it be static?

Reported-by: Abaci Robot <redacted>
Signed-off-by: Jiapeng Chong <redacted>
---
Changes in v2:
   -Remove function arch_get_kallsym().

  kernel/kallsyms.c | 18 ++----------------
  1 file changed, 2 insertions(+), 16 deletions(-)
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 8043a90..49c4268 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -454,24 +454,10 @@ struct kallsym_iter {
  	int show_value;
  };
  
-int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value,
-			    char *type, char *name)
-{
-	return -EINVAL;
-}
This is originally added by
   d83212d5dd67 kallsyms, x86: Export addresses of PTI entry trampolines
by Alexander Shishkin.
The original patch has a x86 specific implementation but later
it is removed.

Maybe Alexander Shishkin can take a look?
-
  static int get_ksymbol_arch(struct kallsym_iter *iter)
  {
-	int ret = arch_get_kallsym(iter->pos - kallsyms_num_syms,
-				   &iter->value, &iter->type,
-				   iter->name);
-
-	if (ret < 0) {
-		iter->pos_arch_end = iter->pos;
-		return 0;
-	}
-
-	return 1;
+	iter->pos_arch_end = iter->pos;
+	return 0;
  }
  
  static int get_ksymbol_mod(struct kallsym_iter *iter)
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