diff mbox series

[net-next,6/6] igb: Proactively round up to kmalloc bucket size

Message ID 20221104205414.2354973-7-anthony.l.nguyen@intel.com (mailing list archive)
State Accepted
Commit e9d696cb44e31184ba3b4b95a4e87442f5198607
Delegated to: Netdev Maintainers
Headers show
Series Intel Wired LAN Driver Updates 2022-11-04 (ixgbe, ixgbevf, igb) | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
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: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 8 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Tony Nguyen Nov. 4, 2022, 8:54 p.m. UTC 
From: Kees Cook <keescook@chromium.org>

In preparation for removing the "silently change allocation size"
users of ksize(), explicitly round up all q_vector allocations so that
allocations can be correctly compared to ksize().

Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Tony Nguyen <anthony.l.nguyen@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: intel-wired-lan@lists.osuosl.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index c2bb658198bf..97290fc0fddd 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -1195,7 +1195,7 @@  static int igb_alloc_q_vector(struct igb_adapter *adapter,
 		return -ENOMEM;
 
 	ring_count = txr_count + rxr_count;
-	size = struct_size(q_vector, ring, ring_count);
+	size = kmalloc_size_roundup(struct_size(q_vector, ring, ring_count));
 
 	/* allocate q_vector and rings */
 	q_vector = adapter->q_vector[v_idx];