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| author | Wei Fang <wei.fang@nxp.com> | 2025-11-19 10:51:47 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-11-20 18:40:07 -0800 |
| commit | 3bb06c8a461b8c8714eef5094b1fadd2d066dd1a (patch) | |
| tree | 3a48cfada24e85bc961d635dfbf95a00f15e4147 /drivers/net/wwan/iosm/iosm_ipc_devlink.c | |
| parent | 63083d597adabffd12ecb879dbae3556e87ee277 (diff) | |
net: fec: remove rx_align from fec_enet_private
The rx_align was introduced by the commit 41ef84ce4c72 ("net: fec: change
FEC alignment according to i.mx6 sx requirement"). Because the i.MX6 SX
requires RX buffer must be 64 bytes alignment.
Since the commit 95698ff6177b ("net: fec: using page pool to manage RX
buffers"), the address of the RX buffer is always the page address plus
FEC_ENET_XDP_HEADROOM which is 256 bytes, so the RX buffer is always
64-byte aligned. Therefore, rx_align has no effect since that commit,
and we can safely remove it.
In addition, to prevent future modifications to FEC_ENET_XDP_HEADROOM,
a BUILD_BUG_ON() test has been added to the driver, which ensures that
FEC_ENET_XDP_HEADROOM provides the required alignment.
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20251119025148.2817602-5-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/wwan/iosm/iosm_ipc_devlink.c')
0 files changed, 0 insertions, 0 deletions