linux-kernel - [PATCH] net: stream: add description for sk_stream_write

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Message-ID: <20250716153404.7385-1-suchitkarunakaran@gmail.com>
Date: Wed, 16 Jul 2025 21:04:04 +0530
From: Suchit Karunakaran <suchitkarunakaran@...il.com>
To: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	horms@...nel.org,
	netdev@...r.kernel.org
Cc: skhan@...uxfoundation.org,
	linux-kernel-mentees@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Suchit Karunakaran <suchitkarunakaran@...il.com>
Subject: [PATCH] net: stream: add description for sk_stream_write_space()

Add a proper description for the sk_stream_write_space() function as
previously marked by a FIXME comment.
No functional changes.

Signed-off-by: Suchit Karunakaran <suchitkarunakaran@...il.com>
---
 net/core/stream.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/core/stream.c b/net/core/stream.c
index b16dfa568a2d..7a37e7dd2c43 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -23,9 +23,13 @@
 
 /**
  * sk_stream_write_space - stream socket write_space callback.
- * @sk: socket
+ * @sk: pointer to the socket structure
  *
- * FIXME: write proper description
+ * This function is invoked when there's space available in the socket's
+ * send buffer for writing. It first checks if the socket is writable,
+ * clears the SOCK_NOSPACE flag indicating that memory for writing
+ * is now available, wakes up any processes waiting for write operations
+ * and sends asynchronous notifications if needed.
  */
 void sk_stream_write_space(struct sock *sk)
 {
-- 
2.50.1