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From: david.laight.linux@gmail.com
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Cc: Andrew Lunn <andrew@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	David Laight <david.laight.linux@gmail.com>
Subject: [PATCH 08/44] net: ethtool: Use min3() instead of nested min_t(u16,...)
Date: Wed, 19 Nov 2025 22:41:04 +0000	[thread overview]
Message-ID: <20251119224140.8616-9-david.laight.linux@gmail.com> (raw)
In-Reply-To: <20251119224140.8616-1-david.laight.linux@gmail.com>

From: David Laight <david.laight.linux@gmail.com>

In ethtool_cmis_cdb_execute_epl_cmd() change space_left and
bytes_to_write from u16 to u32.
Although the values may fit in 16 bits, 32bit variables will generate
better code.
Replace the nested min_t(u16, bytes_left, min_t(u16, space_left, x))
with a call to min3().

Signed-off-by: David Laight <david.laight.linux@gmail.com>
---
 net/ethtool/cmis_cdb.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/ethtool/cmis_cdb.c b/net/ethtool/cmis_cdb.c
index 3057576bc81e..1406205e047e 100644
--- a/net/ethtool/cmis_cdb.c
+++ b/net/ethtool/cmis_cdb.c
@@ -573,12 +573,11 @@ ethtool_cmis_cdb_execute_epl_cmd(struct net_device *dev,
 		while (offset <= CMIS_CDB_EPL_FW_BLOCK_OFFSET_END &&
 		       bytes_written < epl_len) {
 			u32 bytes_left = epl_len - bytes_written;
-			u16 space_left, bytes_to_write;
+			u32 space_left, bytes_to_write;
 
 			space_left = CMIS_CDB_EPL_FW_BLOCK_OFFSET_END - offset + 1;
-			bytes_to_write = min_t(u16, bytes_left,
-					       min_t(u16, space_left,
-						     args->read_write_len_ext));
+			bytes_to_write = min3(bytes_left, space_left,
+					      args->read_write_len_ext);
 
 			err = __ethtool_cmis_cdb_execute_cmd(dev, page_data,
 							     page, offset,
-- 
2.39.5


  parent reply	other threads:[~2025-11-19 22:42 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-19 22:40 [PATCH 00/44] Change a lot of min_t() that might mask high bits david.laight.linux
2025-11-19 22:41 ` [PATCH 07/44] net/core/flow_dissector: Fix cap of __skb_flow_dissect() return value david.laight.linux
2025-11-19 22:41 ` david.laight.linux [this message]
2025-11-19 22:41 ` [PATCH 09/44] ipv6: __ip6_append_data() don't abuse max_t() casts david.laight.linux
2025-11-20  0:32   ` bot+bpf-ci
2025-11-20 11:16     ` David Laight
2025-11-20 13:50       ` Chris Mason
2025-11-19 22:41 ` [PATCH 21/44] drivers/net/ethernet/realtek: use min() instead of min_t() david.laight.linux
2025-11-19 22:41 ` [PATCH 40/44] net: Don't pass bitfields to max_t() david.laight.linux
2025-11-19 22:41 ` [PATCH 41/44] net/core: Change loop conditions so min() can be used david.laight.linux
2025-11-19 22:41 ` [PATCH 42/44] net: use min() instead of min_t() david.laight.linux
2025-11-19 22:41 ` [PATCH 43/44] net/netlink: Use umin() to avoid min_t(int, ...) discarding high bits david.laight.linux
2025-11-19 22:41 ` [PATCH 44/44] net/mptcp: Change some dubious min_t(int, ...) to min() david.laight.linux
2025-12-18 17:33   ` Matthieu Baerts
2025-12-18 20:15     ` David Laight
2025-12-19 10:48       ` Matthieu Baerts
2025-11-20  1:47 ` [PATCH 00/44] Change a lot of min_t() that might mask high bits Jakub Kicinski
2025-11-20  9:38 ` Lorenzo Stoakes
2025-11-20 14:52 ` (subset) " Jens Axboe
2025-11-24  9:49 ` Herbert Xu

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