diff mbox series

[2/2,net-next] mlxsw: spectrum_router: Constify struct devlink_dpipe_table_ops

Message ID 6d79c82023fd7e3c4b2da6ac92ecf478366e8dca.1717337525.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State Accepted
Commit b072aa7899189127e26b2daf8c38933c994f97d3
Delegated to: Netdev Maintainers
Headers show
Series devlink: Constify struct devlink_dpipe_table_ops | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 901 this patch: 901
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 905 this patch: 905
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 905 this patch: 905
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 32 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-06-04--18-00 (tests: 1045)

Commit Message

Christophe JAILLET June 2, 2024, 2:18 p.m. UTC 
'struct devlink_dpipe_table_ops' are not modified in this driver.

Constifying these structures moves some data to a read-only section, so
increase overall security.

On a x86_64, with allmodconfig:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  15557	    712	      0	  16269	   3f8d	drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  15789	    488	      0	  16277	   3f95	drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Wojciech Drewek June 3, 2024, 8:46 a.m. UTC | #1 
On 02.06.2024 16:18, Christophe JAILLET wrote:
> 'struct devlink_dpipe_table_ops' are not modified in this driver.
> 
> Constifying these structures moves some data to a read-only section, so
> increase overall security.
> 
> On a x86_64, with allmodconfig:
> Before:
> ======
>    text	   data	    bss	    dec	    hex	filename
>   15557	    712	      0	  16269	   3f8d	drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.o
> 
> After:
> =====
>    text	   data	    bss	    dec	    hex	filename
>   15789	    488	      0	  16277	   3f95	drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.o
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---

Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>

>  drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
> index ca80af06465f..fa6eddd27ecf 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
> @@ -283,7 +283,7 @@ static u64 mlxsw_sp_dpipe_table_erif_size_get(void *priv)
>  	return MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS);
>  }
>  
> -static struct devlink_dpipe_table_ops mlxsw_sp_erif_ops = {
> +static const struct devlink_dpipe_table_ops mlxsw_sp_erif_ops = {
>  	.matches_dump = mlxsw_sp_dpipe_table_erif_matches_dump,
>  	.actions_dump = mlxsw_sp_dpipe_table_erif_actions_dump,
>  	.entries_dump = mlxsw_sp_dpipe_table_erif_entries_dump,
> @@ -734,7 +734,7 @@ static u64 mlxsw_sp_dpipe_table_host4_size_get(void *priv)
>  	return mlxsw_sp_dpipe_table_host_size_get(mlxsw_sp, AF_INET);
>  }
>  
> -static struct devlink_dpipe_table_ops mlxsw_sp_host4_ops = {
> +static const struct devlink_dpipe_table_ops mlxsw_sp_host4_ops = {
>  	.matches_dump = mlxsw_sp_dpipe_table_host4_matches_dump,
>  	.actions_dump = mlxsw_sp_dpipe_table_host_actions_dump,
>  	.entries_dump = mlxsw_sp_dpipe_table_host4_entries_dump,
> @@ -811,7 +811,7 @@ static u64 mlxsw_sp_dpipe_table_host6_size_get(void *priv)
>  	return mlxsw_sp_dpipe_table_host_size_get(mlxsw_sp, AF_INET6);
>  }
>  
> -static struct devlink_dpipe_table_ops mlxsw_sp_host6_ops = {
> +static const struct devlink_dpipe_table_ops mlxsw_sp_host6_ops = {
>  	.matches_dump = mlxsw_sp_dpipe_table_host6_matches_dump,
>  	.actions_dump = mlxsw_sp_dpipe_table_host_actions_dump,
>  	.entries_dump = mlxsw_sp_dpipe_table_host6_entries_dump,
> @@ -1230,7 +1230,7 @@ mlxsw_sp_dpipe_table_adj_size_get(void *priv)
>  	return size;
>  }
>  
> -static struct devlink_dpipe_table_ops mlxsw_sp_dpipe_table_adj_ops = {
> +static const struct devlink_dpipe_table_ops mlxsw_sp_dpipe_table_adj_ops = {
>  	.matches_dump = mlxsw_sp_dpipe_table_adj_matches_dump,
>  	.actions_dump = mlxsw_sp_dpipe_table_adj_actions_dump,
>  	.entries_dump = mlxsw_sp_dpipe_table_adj_entries_dump,
Ido Schimmel June 3, 2024, 10:53 a.m. UTC | #2 
On Sun, Jun 02, 2024 at 04:18:53PM +0200, Christophe JAILLET wrote:
> 'struct devlink_dpipe_table_ops' are not modified in this driver.
> 
> Constifying these structures moves some data to a read-only section, so
> increase overall security.
> 
> On a x86_64, with allmodconfig:
> Before:
> ======
>    text	   data	    bss	    dec	    hex	filename
>   15557	    712	      0	  16269	   3f8d	drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.o
> 
> After:
> =====
>    text	   data	    bss	    dec	    hex	filename
>   15789	    488	      0	  16277	   3f95	drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.o
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Reviewed-by: Ido Schimmel <idosch@nvidia.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
index ca80af06465f..fa6eddd27ecf 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_dpipe.c
@@ -283,7 +283,7 @@  static u64 mlxsw_sp_dpipe_table_erif_size_get(void *priv)
 	return MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS);
 }
 
-static struct devlink_dpipe_table_ops mlxsw_sp_erif_ops = {
+static const struct devlink_dpipe_table_ops mlxsw_sp_erif_ops = {
 	.matches_dump = mlxsw_sp_dpipe_table_erif_matches_dump,
 	.actions_dump = mlxsw_sp_dpipe_table_erif_actions_dump,
 	.entries_dump = mlxsw_sp_dpipe_table_erif_entries_dump,
@@ -734,7 +734,7 @@  static u64 mlxsw_sp_dpipe_table_host4_size_get(void *priv)
 	return mlxsw_sp_dpipe_table_host_size_get(mlxsw_sp, AF_INET);
 }
 
-static struct devlink_dpipe_table_ops mlxsw_sp_host4_ops = {
+static const struct devlink_dpipe_table_ops mlxsw_sp_host4_ops = {
 	.matches_dump = mlxsw_sp_dpipe_table_host4_matches_dump,
 	.actions_dump = mlxsw_sp_dpipe_table_host_actions_dump,
 	.entries_dump = mlxsw_sp_dpipe_table_host4_entries_dump,
@@ -811,7 +811,7 @@  static u64 mlxsw_sp_dpipe_table_host6_size_get(void *priv)
 	return mlxsw_sp_dpipe_table_host_size_get(mlxsw_sp, AF_INET6);
 }
 
-static struct devlink_dpipe_table_ops mlxsw_sp_host6_ops = {
+static const struct devlink_dpipe_table_ops mlxsw_sp_host6_ops = {
 	.matches_dump = mlxsw_sp_dpipe_table_host6_matches_dump,
 	.actions_dump = mlxsw_sp_dpipe_table_host_actions_dump,
 	.entries_dump = mlxsw_sp_dpipe_table_host6_entries_dump,
@@ -1230,7 +1230,7 @@  mlxsw_sp_dpipe_table_adj_size_get(void *priv)
 	return size;
 }
 
-static struct devlink_dpipe_table_ops mlxsw_sp_dpipe_table_adj_ops = {
+static const struct devlink_dpipe_table_ops mlxsw_sp_dpipe_table_adj_ops = {
 	.matches_dump = mlxsw_sp_dpipe_table_adj_matches_dump,
 	.actions_dump = mlxsw_sp_dpipe_table_adj_actions_dump,
 	.entries_dump = mlxsw_sp_dpipe_table_adj_entries_dump,