diff mbox series

[net-next,v2] bnx2x: remove redundant NULL-pointer check

Message ID 20241025174209.500712-1-kiryushin@ancud.ru (mailing list archive)
State Rejected
Delegated to: Netdev Maintainers
Headers show
Series [net-next,v2] bnx2x: remove redundant NULL-pointer check | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
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: 5 this patch: 5
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 3 this patch: 3
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: 4 this patch: 4
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 10 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-2024-10-31--09-00 (tests: 779)

Commit Message

Nikita Kiryushin Oct. 25, 2024, 5:42 p.m. UTC
bnx2x_get_vf_config() contains NULL-pointer checks for
mac_obj and vlan_obj.

The fields checked are assigned to (after macro expansions):

mac_obj = &((vf)->vfqs[0].mac_obj);
vlan_obj = &((vf)->vfqs[0].vlan_obj);

It is impossible to get NULL for those.

Remove superfluous NULL-pointer check and associated
unreachable code to improve readability.

Signed-off-by: Nikita Kiryushin <kiryushin@ancud.ru>
---
v2:
  - remove confusing part of commit message as Simon Horman <horms@kernel.org>
  suggested in https://lore.kernel.org/lkml/20240715181029.GD249423@kernel.org/
v1: https://lore.kernel.org/lkml/20240712185431.81805-1-kiryushin@ancud.ru/
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 4 ----
 1 file changed, 4 deletions(-)

Comments

Jakub Kicinski Nov. 1, 2024, 1:32 a.m. UTC | #1
On Fri, 25 Oct 2024 20:42:03 +0300 Nikita Kiryushin wrote:
> bnx2x_get_vf_config() contains NULL-pointer checks for
> mac_obj and vlan_obj.
> 
> The fields checked are assigned to (after macro expansions):
> 
> mac_obj = &((vf)->vfqs[0].mac_obj);
> vlan_obj = &((vf)->vfqs[0].vlan_obj);
> 
> It is impossible to get NULL for those.
> 
> Remove superfluous NULL-pointer check and associated
> unreachable code to improve readability.

this is an old driver and the 4 saved LoC on the control path
don't seem to justify the review effort needed, anyway, sorry.
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 12198fc3ab22..0f121b15f5d7 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -2619,10 +2619,6 @@  int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
 
 	mac_obj = &bnx2x_leading_vfq(vf, mac_obj);
 	vlan_obj = &bnx2x_leading_vfq(vf, vlan_obj);
-	if (!mac_obj || !vlan_obj) {
-		BNX2X_ERR("VF partially initialized\n");
-		return -EINVAL;
-	}
 
 	ivi->vf = vfidx;
 	ivi->qos = 0;