+ rdma-cxgb4-remove-dead-null-checks-after-gfp_nofail-allocations.patch added to mm-nonmm-unstable branch

The patch titled
     Subject: RDMA/cxgb4: remove dead NULL checks after GFP_NOFAIL allocations
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     rdma-cxgb4-remove-dead-null-checks-after-gfp_nofail-allocations.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/rdma-cxgb4-remove-dead-null-checks-after-gfp_nofail-allocations.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Gou Hao <[email protected]>
Subject: RDMA/cxgb4: remove dead NULL checks after GFP_NOFAIL allocations
Date: Fri, 24 Jul 2026 10:28:51 +0800

alloc_skb() with the __GFP_NOFAIL flag will never return NULL, so the
subsequent NULL checks and error handling are unreachable dead code. 
Remove them.

Link: https://lore.kernel.org/[email protected]
Signed-off-by: Gou Hao <[email protected]>
Cc: Bharat Potnuri <[email protected]>
Cc: Cédric Le Goater <[email protected]>
Cc: Dave Airlie <[email protected]>
Cc: Jason Gunthorpe <[email protected]>
Cc: jiazhenyuan <[email protected]>
Cc: Leon Romanovsky <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nam Cao <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Nilay Shroff <[email protected]>
Cc: Shrikanth Hegde <[email protected]>
Cc: Thomas Zimemrmann <[email protected]>
Cc: Wentao Guan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

 drivers/infiniband/hw/cxgb4/mem.c |   10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

--- a/drivers/infiniband/hw/cxgb4/mem.c~rdma-cxgb4-remove-dead-null-checks-after-gfp_nofail-allocations
+++ a/drivers/infiniband/hw/cxgb4/mem.c
@@ -74,11 +74,8 @@ static int _c4iw_write_mem_dma_aligned(s
 		c4iw_init_wr_wait(wr_waitp);
 	wr_len = roundup(sizeof(*req) + sizeof(*sgl), 16);
 
-	if (!skb) {
+	if (!skb)
 		skb = alloc_skb(wr_len, GFP_KERNEL | __GFP_NOFAIL);
-		if (!skb)
-			return -ENOMEM;
-	}
 	set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0);
 
 	req = __skb_put_zero(skb, wr_len);
@@ -134,11 +131,8 @@ static int _c4iw_write_mem_inline(struct
 					 roundup(copy_len, T4_ULPTX_MIN_IO),
 				 16);
 
-		if (!skb) {
+		if (!skb)
 			skb = alloc_skb(wr_len, GFP_KERNEL | __GFP_NOFAIL);
-			if (!skb)
-				return -ENOMEM;
-		}
 		set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0);
 
 		req = __skb_put_zero(skb, wr_len);
_

Patches currently in -mm which might be from [email protected] are

powerpc-xive-remove-dead-null-check-after-gfp_nofail-allocation.patch
powerpc-xive-add-error-return-value-to-xive_smp_probe.patch
powerpc-xive-fix-use-after-free-of-xive_ipis.patch
drm-remove-dead-warn_on-null-check-after-gfp_nofail-allocation.patch
lib-test_hmm-remove-dead-null-checks-after-gfp_nofail-allocations.patch
rdma-cxgb4-remove-dead-null-checks-after-gfp_nofail-allocations.patch