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batman-adv: tpmeter: fix u32 truncation of reported bytes

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When more than 4 GB are transferred by the throughput meter,
batadv_tp_batctl_notify() will cut of the upper 32 bit of the u64 counter
and thus under-report the actual transferred bytes.

The data type of the temporary storage variable must therefore still
continue to use u64.

Cc: stable@vger.kernel.org
Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/bug/linux-08bb3be4-6c6a-452d-b4e4-606940c6cfa5
Fixes: 33a3bb4a33 ("batman-adv: throughput meter implementation")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Sven Eckelmann 2026-10-06 19:38:15 +02:00
parent ea01fff30f
commit 1025b76d13
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1 changed files with 1 additions and 1 deletions
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net/batman-adv/tp_meter.c
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@ -221,7 +221,7 @@ static void batadv_tp_batctl_notify(enum batadv_tp_meter_reason reason,
unsigned long start_time, u64 total_sent,
u32 cookie)
{
u32 total_bytes;
u64 total_bytes;
u32 test_time;
u8 result;