From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/kernel/relay.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/kernel/kernel/relay.c b/kernel/kernel/relay.c
index b08d936..f6826de 100644
--- a/kernel/kernel/relay.c
+++ b/kernel/kernel/relay.c
@@ -163,13 +163,13 @@
{
struct rchan_buf *buf;
- if (chan->n_subbufs > KMALLOC_MAX_SIZE / sizeof(size_t *))
+ if (chan->n_subbufs > KMALLOC_MAX_SIZE / sizeof(size_t))
return NULL;
buf = kzalloc(sizeof(struct rchan_buf), GFP_KERNEL);
if (!buf)
return NULL;
- buf->padding = kmalloc_array(chan->n_subbufs, sizeof(size_t *),
+ buf->padding = kmalloc_array(chan->n_subbufs, sizeof(size_t),
GFP_KERNEL);
if (!buf->padding)
goto free_buf;
@@ -1077,7 +1077,8 @@
size_t subbuf_size = buf->chan->subbuf_size;
size_t n_subbufs = buf->chan->n_subbufs;
size_t consumed = buf->subbufs_consumed % n_subbufs;
- size_t read_pos = consumed * subbuf_size + buf->bytes_consumed;
+ size_t read_pos = (consumed * subbuf_size + buf->bytes_consumed)
+ % (n_subbufs * subbuf_size);
read_subbuf = read_pos / subbuf_size;
padding = buf->padding[read_subbuf];
--
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