2022-03-27 05:17:31

by Michal Orzel

Subject: [PATCH] kexec: Remove redundant assignments

Get rid of redundant assignments which end up in values not being
read either because they are overwritten or the function ends.

Reported by clang-tidy [deadcode.DeadStores]

Signed-off-by: Michal Orzel <[email protected]>
---
kernel/kexec_core.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 68480f731192..d08904a27362 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -768,7 +768,6 @@ static struct page *kimage_alloc_page(struct kimage *image,
kimage_free_pages(old_page);
continue;
}
- addr = old_addr;
page = old_page;
break;
}
@@ -788,7 +787,6 @@ static int kimage_load_normal_segment(struct kimage *image,
unsigned char __user *buf = NULL;
unsigned char *kbuf = NULL;

- result = 0;
if (image->file_mode)
kbuf = segment->kbuf;
else
--
2.25.1

2022-04-01 15:03:37

by Baoquan He

Subject: Re: [PATCH] kexec: Remove redundant assignments

On 03/26/22 at 07:09pm, Michal Orzel wrote:
> Get rid of redundant assignments which end up in values not being
> read either because they are overwritten or the function ends.
>
> Reported by clang-tidy [deadcode.DeadStores]
>
> Signed-off-by: Michal Orzel <[email protected]>
> ---
> kernel/kexec_core.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
> index 68480f731192..d08904a27362 100644
> --- a/kernel/kexec_core.c
> +++ b/kernel/kexec_core.c
> @@ -768,7 +768,6 @@ static struct page *kimage_alloc_page(struct kimage *image,
> kimage_free_pages(old_page);
> continue;
> }
> - addr = old_addr;
> page = old_page;
> break;
> }
> @@ -788,7 +787,6 @@ static int kimage_load_normal_segment(struct kimage *image,
> unsigned char __user *buf = NULL;
> unsigned char *kbuf = NULL;
>
> - result = 0;
> if (image->file_mode)
> kbuf = segment->kbuf;
> else

LGTM, thx

Acked-by: Baoquan He <[email protected]>