xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ethtool: Centralise validation of ETHTOOL_{G, S}RXFHINDIR parameters

Browse Source 
Add a new ethtool operation (get_rxfh_indir_size) to get the
indirectional table size.  Use this to validate the user buffer size
before calling get_rxfh_indir or set_rxfh_indir.  Use get_rxnfc to get
the number of RX rings, and validate the contents of the new
indirection table before calling set_rxfh_indir.  Remove this
validation from drivers.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2011-12-15 13:55:01 +00:00
committed by David S. Miller
parent 14596f7006
commit 7850f63f16
6 changed files with 118 additions and 112 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
include/linux/ethtool.h
View File

@@ -828,9 +828,13 @@ u32 ethtool_op_get_link(struct net_device *dev);
* error code or zero.
* @set_rx_ntuple: Set an RX n-tuple rule. Returns a negative error code
* or zero.
* @get_rxfh_indir_size: Get the size of the RX flow hash indirection table.
* Returns zero if not supported for this specific device.
* @get_rxfh_indir: Get the contents of the RX flow hash indirection table.
* Will not be called if @get_rxfh_indir_size returns zero.
* Returns a negative error code or zero.
* @set_rxfh_indir: Set the contents of the RX flow hash indirection table.
* Will not be called if @get_rxfh_indir_size returns zero.
* Returns a negative error code or zero.
* @get_channels: Get number of channels.
* @set_channels: Set number of channels. Returns a negative error code or
@@ -894,10 +898,9 @@ struct ethtool_ops {
int (*reset)(struct net_device *, u32 *);
int (*set_rx_ntuple)(struct net_device *,
struct ethtool_rx_ntuple *);
int (*get_rxfh_indir)(struct net_device *,
struct ethtool_rxfh_indir *);
int (*set_rxfh_indir)(struct net_device *,
const struct ethtool_rxfh_indir *);
u32 (*get_rxfh_indir_size)(struct net_device *);
int (*get_rxfh_indir)(struct net_device *, u32 *);
int (*set_rxfh_indir)(struct net_device *, const u32 *);
void (*get_channels)(struct net_device *, struct ethtool_channels *);
int (*set_channels)(struct net_device *, struct ethtool_channels *);
int (*get_dump_flag)(struct net_device *, struct ethtool_dump *);