Re: [patch 22/30] net/mlx5: Replace irq_to_desc() abuse

From: Tariq Toukan
Date: Sun Dec 13 2020 - 06:35:14 EST




On 12/10/2020 9:25 PM, Thomas Gleixner wrote:
No driver has any business with the internals of an interrupt
descriptor. Storing a pointer to it just to use yet another helper at the
actual usage site to retrieve the affinity mask is creative at best. Just
because C does not allow encapsulation does not mean that the kernel has no
limits.

Retrieve a pointer to the affinity mask itself and use that. It's still
using an interface which is usually not for random drivers, but definitely
less hideous than the previous hack.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 +-
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 +-
drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c | 6 +-----
3 files changed, 3 insertions(+), 7 deletions(-)


Reviewed-by: Tariq Toukan <tariqt@xxxxxxxxxx>

Thanks.