6.15-stable review patch. If anyone has any objections, please let me know.
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From: Jiawen Wu jiawenwu@trustnetic.com
commit 85720e04d9af0b77f8092b12a06661a8d459d4a0 upstream.
'rx_ring->size' means the count of ring descriptors multiplied by the size of one descriptor. When increasing the count of ring descriptors, it may exceed the limit of pool size.
[ 864.209610] page_pool_create_percpu() gave up with errno -7 [ 864.209613] txgbe 0000:11:00.0: Page pool creation failed: -7
Fix to set the pool_size to the count of ring descriptors.
Fixes: 850b971110b2 ("net: libwx: Allocate Rx and Tx resources") Cc: stable@vger.kernel.org Signed-off-by: Jiawen Wu jiawenwu@trustnetic.com Reviewed-by: Simon Horman horms@kernel.org Reviewed-by: Mina Almasry almasrymina@google.com Link: https://patch.msgid.link/434C72BFB40E350A+20250625023924.21821-1-jiawenwu@tr... Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/wangxun/libwx/wx_lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/wangxun/libwx/wx_lib.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.c @@ -2496,7 +2496,7 @@ static int wx_alloc_page_pool(struct wx_ struct page_pool_params pp_params = { .flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV, .order = 0, - .pool_size = rx_ring->size, + .pool_size = rx_ring->count, .nid = dev_to_node(rx_ring->dev), .dev = rx_ring->dev, .dma_dir = DMA_FROM_DEVICE,