[PATCH v3 15/18] tftp: do not use 'priv->block' for RRQ
Enrico Scholz
enrico.scholz at sigma-chemnitz.de
Mon Aug 15 01:42:19 PDT 2022
attribute is not used outside tftp_recv() for RRQ.
Signed-off-by: Enrico Scholz <enrico.scholz at sigma-chemnitz.de>
---
fs/tftp.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/fs/tftp.c b/fs/tftp.c
index 4c3980404dc1..c96c8917633a 100644
--- a/fs/tftp.c
+++ b/fs/tftp.c
@@ -316,6 +316,7 @@ static void tftp_recv(struct file_priv *priv,
uint8_t *pkt, unsigned len, uint16_t uh_sport)
{
uint16_t opcode;
+ uint16_t block;
/* according to RFC1350 minimal tftp packet length is 4 bytes */
if (len < 4)
@@ -370,7 +371,7 @@ static void tftp_recv(struct file_priv *priv,
case TFTP_DATA:
len -= 2;
- priv->block = ntohs(*(uint16_t *)pkt);
+ block = ntohs(*(uint16_t *)pkt);
if (priv->state == STATE_RRQ || priv->state == STATE_OACK) {
/* first block received */
@@ -378,20 +379,20 @@ static void tftp_recv(struct file_priv *priv,
priv->tftp_con->udp->uh_dport = uh_sport;
priv->last_block = 0;
- if (priv->block != 1) { /* Assertion */
+ if (block != 1) { /* Assertion */
pr_err("error: First block is not block 1 (%d)\n",
- priv->block);
+ block);
priv->err = -EINVAL;
priv->state = STATE_DONE;
break;
}
}
- if (priv->block != (uint16_t)(priv->last_block + 1))
+ if (block != (uint16_t)(priv->last_block + 1))
break;
tftp_timer_reset(priv);
- tftp_put_data(priv, priv->block, pkt + 2, len);
+ tftp_put_data(priv, block, pkt + 2, len);
break;
--
2.37.1
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