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[4/4] softmmu/device_tree: Fixup local variables shadowing

Message ID 20230925043023.71448-5-alistair.francis@wdc.com
State New
Headers show
Series RISC-V: Work towards enabling -Wshadow=local | expand

Commit Message

Alistair Francis Sept. 25, 2023, 4:30 a.m. UTC
Local variables shadowing other local variables or parameters make the
code needlessly hard to understand.  Bugs love to hide in such code.
Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail
on polling error".

This patch removes the local variable shadowing. Tested by adding:

    --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local'

To configure

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 softmmu/device_tree.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Daniel Henrique Barboza Sept. 25, 2023, 9:10 a.m. UTC | #1
On 9/25/23 01:30, Alistair Francis wrote:
> Local variables shadowing other local variables or parameters make the
> code needlessly hard to understand.  Bugs love to hide in such code.
> Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail
> on polling error".
> 
> This patch removes the local variable shadowing. Tested by adding:
> 
>      --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local'
> 
> To configure
> 
> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
> ---

Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>

>   softmmu/device_tree.c | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/softmmu/device_tree.c b/softmmu/device_tree.c
> index 30aa3aea9f..eb5166ca36 100644
> --- a/softmmu/device_tree.c
> +++ b/softmmu/device_tree.c
> @@ -418,9 +418,9 @@ int qemu_fdt_setprop_string_array(void *fdt, const char *node_path,
>       }
>       p = str = g_malloc0(total_len);
>       for (i = 0; i < len; i++) {
> -        int len = strlen(array[i]) + 1;
> -        pstrcpy(p, len, array[i]);
> -        p += len;
> +        int offset = strlen(array[i]) + 1;
> +        pstrcpy(p, offset, array[i]);
> +        p += offset;
>       }
>   
>       ret = qemu_fdt_setprop(fdt, node_path, prop, str, total_len);
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Patch

diff --git a/softmmu/device_tree.c b/softmmu/device_tree.c
index 30aa3aea9f..eb5166ca36 100644
--- a/softmmu/device_tree.c
+++ b/softmmu/device_tree.c
@@ -418,9 +418,9 @@  int qemu_fdt_setprop_string_array(void *fdt, const char *node_path,
     }
     p = str = g_malloc0(total_len);
     for (i = 0; i < len; i++) {
-        int len = strlen(array[i]) + 1;
-        pstrcpy(p, len, array[i]);
-        p += len;
+        int offset = strlen(array[i]) + 1;
+        pstrcpy(p, offset, array[i]);
+        p += offset;
     }
 
     ret = qemu_fdt_setprop(fdt, node_path, prop, str, total_len);