From 42b6f4331fd4ca9d4d40c8b7ed330a339b271d51 Mon Sep 17 00:00:00 2001
From: Thomas Lamprecht <t.lamprecht@proxmox.com>
Date: Fri, 4 Feb 2022 17:12:05 +0100
Subject: [PATCH] http: websocket: avoid modulo for power of 2

even for the small cases this can matter

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
 proxmox-http/src/websocket/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/proxmox-http/src/websocket/mod.rs b/proxmox-http/src/websocket/mod.rs
index 9c1f129c..95a6f513 100644
--- a/proxmox-http/src/websocket/mod.rs
+++ b/proxmox-http/src/websocket/mod.rs
@@ -114,7 +114,7 @@ fn mask_bytes(mask: Option<[u8; 4]>, data: &mut [u8]) {
 
     if data.len() < 32 {
         for i in 0..data.len() {
-            data[i] ^= mask[i % 4];
+            data[i] ^= mask[i & 3];
         }
         return;
     }