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

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

[Andrew Morton]

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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 <gouhao@uniontech.com>
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/20260724022851.466017-7-gouhao@uniontech.com
Signed-off-by: Gou Hao <gouhao@uniontech.com>
Cc: Bharat Potnuri <bharat@chelsio.com>
Cc: Cédric Le Goater <clg@kaod.org>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: jiazhenyuan <jiazhenyuan@uniontech.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nam Cao <namcao@linutronix.de>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Nilay Shroff <nilay@linux.ibm.com>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Thomas Zimemrmann <tzimmermann@suse.de>
Cc: Wentao Guan <guanwentao@uniontech.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 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 gouhao@uniontech.com 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