Commit 8a8f3f49 authored by Thangaraj Samynathan's avatar Thangaraj Samynathan Committed by Jakub Kicinski
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net: lan743x: Allocate rings outside ZONE_DMA 



The driver allocates ring elements using GFP_DMA flags. There is
no dependency from LAN743x hardware on memory allocation should be
in DMA_ZONE. Hence modifying the flags to use only GFP_ATOMIC. This
is consistent with other callers of lan743x_rx_init_ring_element().

Reported-by: default avatarZhang, Liyin(CN) <Liyin.Zhang.CN@windriver.com>
Signed-off-by: default avatarThangaraj Samynathan <thangaraj.s@microchip.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250415044509.6695-1-thangaraj.s@microchip.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 20accfd3

drivers/net/ethernet/microchip/lan743x_main.c

+1 −2
Original line number Diff line number Diff line
@@ -2495,8 +2495,7 @@ static int lan743x_rx_process_buffer(struct lan743x_rx *rx) 


	/* save existing skb, allocate new skb and map to dma */

	skb = buffer_info->skb;

	if (lan743x_rx_init_ring_element(rx, rx->last_head,

					 GFP_ATOMIC | GFP_DMA)) {

	if (lan743x_rx_init_ring_element(rx, rx->last_head, GFP_ATOMIC)) {

		/* failed to allocate next skb.

		 * Memory is very low.

		 * Drop this packet and reuse buffer.