diff mbox series

wifi: rtlwifi: use unsigned long for rtl_bssid_entry timestamp

Message ID 20230929154524.222498-1-dmantipov@yandex.ru (mailing list archive)
State Accepted
Commit f0fb62e090bdf38eb3c7e127f21858708b55b71b
Delegated to: Kalle Valo
Headers show
Series wifi: rtlwifi: use unsigned long for rtl_bssid_entry timestamp | expand

Commit Message

Dmitry Antipov Sept. 29, 2023, 3:45 p.m. UTC
Since 'age' of 'struct rtl_bssid_entry' is in jiffies, prefer 'unsigned
long' over 'u32' to avoid possible truncation in 'rtl_collect_scan_list()'
and thus weird result in 'rtl_scan_list_expire()'. Compile tested only.

Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
---
 drivers/net/wireless/realtek/rtlwifi/wifi.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Ping-Ke Shih Oct. 3, 2023, 12:26 a.m. UTC | #1
> -----Original Message-----
> From: Dmitry Antipov <dmantipov@yandex.ru>
> Sent: Friday, September 29, 2023 11:45 PM
> To: Ping-Ke Shih <pkshih@realtek.com>
> Cc: Kalle Valo <kvalo@kernel.org>; linux-wireless@vger.kernel.org; Dmitry Antipov <dmantipov@yandex.ru>
> Subject: [PATCH] wifi: rtlwifi: use unsigned long for rtl_bssid_entry timestamp
> 
> Since 'age' of 'struct rtl_bssid_entry' is in jiffies, prefer 'unsigned
> long' over 'u32' to avoid possible truncation in 'rtl_collect_scan_list()'
> and thus weird result in 'rtl_scan_list_expire()'. Compile tested only.
> 
> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>

Acked-by: Ping-Ke Shih <pkshih@realtek.com>


> ---
>  drivers/net/wireless/realtek/rtlwifi/wifi.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/realtek/rtlwifi/wifi.h b/drivers/net/wireless/realtek/rtlwifi/wifi.h
> index 2e7e04f91279..0f99e3446796 100644
> --- a/drivers/net/wireless/realtek/rtlwifi/wifi.h
> +++ b/drivers/net/wireless/realtek/rtlwifi/wifi.h
> @@ -2708,7 +2708,7 @@ struct rtl_c2hcmd {
>  struct rtl_bssid_entry {
>         struct list_head list;
>         u8 bssid[ETH_ALEN];
> -       u32 age;
> +       unsigned long age;
>  };
> 
>  struct rtl_scan_list {
> --
> 2.41.0
Kalle Valo Oct. 3, 2023, 11:44 a.m. UTC | #2
Dmitry Antipov <dmantipov@yandex.ru> wrote:

> Since 'age' of 'struct rtl_bssid_entry' is in jiffies, prefer 'unsigned
> long' over 'u32' to avoid possible truncation in 'rtl_collect_scan_list()'
> and thus weird result in 'rtl_scan_list_expire()'. Compile tested only.
> 
> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
> Acked-by: Ping-Ke Shih <pkshih@realtek.com>

Patch applied to wireless-next.git, thanks.

f0fb62e090bd wifi: rtlwifi: use unsigned long for rtl_bssid_entry timestamp
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtlwifi/wifi.h b/drivers/net/wireless/realtek/rtlwifi/wifi.h
index 2e7e04f91279..0f99e3446796 100644
--- a/drivers/net/wireless/realtek/rtlwifi/wifi.h
+++ b/drivers/net/wireless/realtek/rtlwifi/wifi.h
@@ -2708,7 +2708,7 @@  struct rtl_c2hcmd {
 struct rtl_bssid_entry {
 	struct list_head list;
 	u8 bssid[ETH_ALEN];
-	u32 age;
+	unsigned long age;
 };
 
 struct rtl_scan_list {