From: David Gibson <david@gibson.dropbear.id.au>
To: Stefano Brivio <sbrivio@redhat.com>, passt-dev@passt.top
Cc: David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH v2 04/12] packet: Use flexible array member in struct pool
Date: Fri, 20 Dec 2024 19:35:27 +1100 [thread overview]
Message-ID: <20241220083535.1372523-5-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20241220083535.1372523-1-david@gibson.dropbear.id.au>
Currently we have a dummy pkt[1] array, which we alias with an array of
a different size via various macros. However, we already require C11 which
includes flexible array members, so we can do better.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
packet.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/packet.h b/packet.h
index 3f70e949..85ee5508 100644
--- a/packet.h
+++ b/packet.h
@@ -21,7 +21,7 @@ struct pool {
size_t buf_size;
size_t size;
size_t count;
- struct iovec pkt[1];
+ struct iovec pkt[];
};
int vu_packet_check_range(void *buf, size_t offset, size_t len,
--
@@ -21,7 +21,7 @@ struct pool {
size_t buf_size;
size_t size;
size_t count;
- struct iovec pkt[1];
+ struct iovec pkt[];
};
int vu_packet_check_range(void *buf, size_t offset, size_t len,
--
2.47.1
next prev parent reply other threads:[~2024-12-20 8:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-20 8:35 [PATCH v2 00/12] Cleanups to packet pool handling and sizing David Gibson
2024-12-20 8:35 ` [PATCH v2 01/12] test focus David Gibson
2024-12-20 8:35 ` [PATCH v2 02/12] hack: stop on fail, but not perf fail David Gibson
2024-12-20 8:35 ` [PATCH v2 03/12] make passt dumpable David Gibson
2024-12-20 8:35 ` David Gibson [this message]
2024-12-20 8:35 ` [PATCH v2 05/12] packet: Don't pass start and offset separately too packet_check_range() David Gibson
2024-12-20 8:35 ` [PATCH v2 06/12] packet: Don't hard code maximum packet size to UINT16_MAX David Gibson
2024-12-20 8:35 ` [PATCH v2 07/12] packet: Remove unhelpful packet_get_try() macro David Gibson
2024-12-20 8:35 ` [PATCH v2 08/12] util: Add abort_with_msg() and ASSERT_WITH_MSG() helpers David Gibson
2024-12-20 8:35 ` [PATCH v2 09/12] packet: Distinguish severities of different packet_{add,git}_do() errors David Gibson
2024-12-20 8:35 ` [PATCH v2 10/12] packet: Move packet length checks into packet_check_range() David Gibson
2024-12-20 8:35 ` [PATCH v2 11/12] tap: Don't size pool_tap[46] for the maximum number of packets David Gibson
2024-12-20 8:35 ` [PATCH v2 12/12] packet: More cautious checks to avoid pointer arithmetic UB David Gibson
2024-12-20 9:00 ` [PATCH v2 00/12] Cleanups to packet pool handling and sizing David Gibson
2024-12-20 10:06 ` Stefano Brivio
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