linux-kernel - Re: [PATCH] module: Remove the unused function within

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Date:   Wed, 15 Feb 2023 16:47:44 +0000
From:   Chris Down <chris@...isdown.name>
To:     Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Cc:     mcgrof@...nel.org, nathan@...nel.org, ndesaulniers@...gle.com,
        trix@...hat.com, linux-modules@...r.kernel.org,
        linux-kernel@...r.kernel.org, bpf@...r.kernel.org,
        llvm@...ts.linux.dev, Abaci Robot <abaci@...ux.alibaba.com>
Subject: Re: [PATCH] module: Remove the unused function within

Jiapeng Chong writes:
>The function within is defined in the main.c file, but not called
>elsewhere, so remove this unused function.

Huh? It's used by __module_text_address(), no?

>kernel/module/main.c:3007:19: warning: unused function 'within'.
>
>Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
>Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4035
>Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
>---
> kernel/module/main.c | 5 -----
> 1 file changed, 5 deletions(-)
>
>diff --git a/kernel/module/main.c b/kernel/module/main.c
>index c598f11e7016..062065568b40 100644
>--- a/kernel/module/main.c
>+++ b/kernel/module/main.c
>@@ -3004,11 +3004,6 @@ SYSCALL_DEFINE3(finit_module, int, fd, const char __user *, uargs, int, flags)
> 	return load_module(&info, uargs, flags);
> }
>
>-static inline int within(unsigned long addr, void *start, unsigned long size)
>-{
>-	return ((void *)addr >= start && (void *)addr < start + size);
>-}
>-
> /* Keep in sync with MODULE_FLAGS_BUF_SIZE !!! */
> char *module_flags(struct module *mod, char *buf, bool show_state)
> {
>-- 
>2.20.1.7.g153144c
>