* Re: [PATCH 17/61] module: Prefer IS_ERR_OR_NULL over manual NULL check
From: Aaron Tomlin @ 2026-03-10 14:45 UTC (permalink / raw)
To: Philipp Hahn
Cc: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Luis Chamberlain, Petr Pavlu, Daniel Gomez,
Sami Tolvanen
In-Reply-To: <20260310-b4-is_err_or_null-v1-17-bd63b656022d@avm.de>
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On Tue, Mar 10, 2026 at 12:48:43PM +0100, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Change generated with coccinelle.
>
> To: Luis Chamberlain <mcgrof@kernel.org>
> To: Petr Pavlu <petr.pavlu@suse.com>
> To: Daniel Gomez <da.gomez@kernel.org>
> To: Sami Tolvanen <samitolvanen@google.com>
> To: Aaron Tomlin <atomlin@atomlin.com>
> Cc: linux-modules@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
> kernel/module/main.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/module/main.c b/kernel/module/main.c
> index c3ce106c70af165e2dc1a3c79f5a074a5c3e3d34..7f62f0620dcd75960e431f7af3d1cadf4cc41e4b 100644
> --- a/kernel/module/main.c
> +++ b/kernel/module/main.c
> @@ -1551,7 +1551,7 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
> case SHN_UNDEF:
> ksym = resolve_symbol_wait(mod, info, name);
> /* Ok if resolved. */
> - if (ksym && !IS_ERR(ksym)) {
> + if (!IS_ERR_OR_NULL(ksym)) {
> sym[i].st_value = kernel_symbol_value(ksym);
> break;
> }
>
> --
> 2.43.0
>
Hi Philipp,
Thank you.
Have you considered other users of IS_ERR() in kernel/module/main.c too?
Perhaps it might be best to prepare a clean up for each applicable
subsystem in isolation.
Kind regards,
--
Aaron Tomlin
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--
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^ permalink raw reply
* Re: [PATCH 15/61] trace: Prefer IS_ERR_OR_NULL over manual NULL check
From: Steven Rostedt @ 2026-03-10 14:07 UTC (permalink / raw)
To: Philipp Hahn
Cc: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Masami Hiramatsu, Mathieu Desnoyers
In-Reply-To: <20260310-b4-is_err_or_null-v1-15-bd63b656022d@avm.de>
On Tue, 10 Mar 2026 12:48:41 +0100
Philipp Hahn <phahn-oss@avm.de> wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
Why?
>
> Change generated with coccinelle.
>
> To: Steven Rostedt <rostedt@goodmis.org>
> To: Masami Hiramatsu <mhiramat@kernel.org>
> To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-trace-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
> kernel/trace/fprobe.c | 2 +-
> kernel/trace/kprobe_event_gen_test.c | 2 +-
> kernel/trace/trace_events_hist.c | 2 +-
> 3 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/kernel/trace/fprobe.c b/kernel/trace/fprobe.c
> index dcadf1d23b8a31f571392d0c49cbd22df1716b4f..a94ce810d83b90f55d1178a9bd29c78fd068df4c 100644
> --- a/kernel/trace/fprobe.c
> +++ b/kernel/trace/fprobe.c
> @@ -607,7 +607,7 @@ static int fprobe_module_callback(struct notifier_block *nb,
> do {
> rhashtable_walk_start(&iter);
>
> - while ((node = rhashtable_walk_next(&iter)) && !IS_ERR(node))
> + while (!IS_ERR_OR_NULL((node = rhashtable_walk_next(&iter))))
Ug, No!
That looks so much worse than the original.
-- Steve
> fprobe_remove_node_in_module(mod, node, &alist);
>
> rhashtable_walk_stop(&iter);
> diff --git a/kernel/trace/kprobe_event_gen_test.c b/kernel/trace/kprobe_event_gen_test.c
> index 5a4b722b50451bfdee42769a6d3be39c055690d1..a1735ca273f0b756aa1fcfcdab30ddad9bc51c5f 100644
> --- a/kernel/trace/kprobe_event_gen_test.c
> +++ b/kernel/trace/kprobe_event_gen_test.c
> @@ -75,7 +75,7 @@ static struct trace_event_file *gen_kretprobe_test;
>
> static bool trace_event_file_is_valid(struct trace_event_file *input)
> {
> - return input && !IS_ERR(input);
> + return !IS_ERR_OR_NULL(input);
> }
>
> /*
> diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
> index 73ea180cad555898693e92ee397a1c9493c7c167..59df215e1dfd9349eca1c0823ed709ec7285f766 100644
> --- a/kernel/trace/trace_events_hist.c
> +++ b/kernel/trace/trace_events_hist.c
> @@ -3973,7 +3973,7 @@ trace_action_create_field_var(struct hist_trigger_data *hist_data,
> */
> field_var = create_target_field_var(hist_data, system, event, var);
>
> - if (field_var && !IS_ERR(field_var)) {
> + if (!IS_ERR_OR_NULL(field_var)) {
> save_field_var(hist_data, field_var);
> hist_field = field_var->var;
> } else {
>
--
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^ permalink raw reply
* Re: [PATCH 25/61] net/bluetooth: Prefer IS_ERR_OR_NULL over manual NULL check
From: Bastien Nocera @ 2026-03-10 13:55 UTC (permalink / raw)
To: Philipp Hahn, amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel,
dri-devel, gfs2, intel-gfx, intel-wired-lan, iommu, kvm,
linux-arm-kernel, linux-block, linux-bluetooth, linux-btrfs,
linux-cifs, linux-clk, linux-erofs, linux-ext4, linux-fsdevel,
linux-gpio, linux-hyperv, linux-input, linux-kernel, linux-leds,
linux-media, linux-mips, linux-mm, linux-modules, linux-mtd,
linux-nfs, linux-omap, linux-phy, linux-pm, linux-rockchip,
linux-s390, linux-scsi, linux-sctp, linux-security-module,
linux-sh, linux-sound, linux-stm32, linux-trace-kernel, linux-usb,
linux-wireless, netdev, ntfs3, samba-technical, sched-ext,
target-devel, tipc-discussion, v9fs
Cc: Marcel Holtmann, Johan Hedberg, Luiz Augusto von Dentz
In-Reply-To: <20260310-b4-is_err_or_null-v1-25-bd63b656022d@avm.de>
On Tue, 2026-03-10 at 12:48 +0100, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Change generated with coccinelle.
>
> To: Marcel Holtmann <marcel@holtmann.org>
> To: Johan Hedberg <johan.hedberg@gmail.com>
> To: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
> Cc: linux-bluetooth@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
> ---
> net/bluetooth/mgmt.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
> index
> a7238fd3b03bb54f39af1afee74dc1acd931c324..06d2da67bbe14e17ee478aa939d
> e26526c333d91 100644
> --- a/net/bluetooth/mgmt.c
> +++ b/net/bluetooth/mgmt.c
> @@ -4169,7 +4169,7 @@ static void set_default_phy_complete(struct
> hci_dev *hdev, void *data, int err)
> mgmt_phy_configuration_changed(hdev, cmd->sk);
> }
>
> - if (skb && !IS_ERR(skb))
> + if (!IS_ERR_OR_NULL(skb))
> kfree_skb(skb);
>
> mgmt_pending_free(cmd);
> @@ -5730,7 +5730,7 @@ static void read_local_oob_data_complete(struct
> hci_dev *hdev, void *data,
> MGMT_STATUS_SUCCESS, &mgmt_rp, rp_size);
>
> remove:
> - if (skb && !IS_ERR(skb))
> + if (!IS_ERR_OR_NULL(skb))
> kfree_skb(skb);
>
> mgmt_pending_free(cmd);
> @@ -8277,7 +8277,7 @@ static void
> read_local_oob_ext_data_complete(struct hci_dev *hdev, void *data,
> mgmt_rp, sizeof(*mgmt_rp) +
> eir_len,
> HCI_MGMT_OOB_DATA_EVENTS, cmd->sk);
> done:
> - if (skb && !IS_ERR(skb))
> + if (!IS_ERR_OR_NULL(skb))
> kfree_skb(skb);
>
> kfree(mgmt_rp);
--
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^ permalink raw reply
* Re: [PATCH 24/61] net/9p: Prefer IS_ERR_OR_NULL over manual NULL check
From: Christian Schoenebeck @ 2026-03-10 13:47 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn, Philipp Hahn
Cc: Eric Van Hensbergen, Latchesar Ionkov, Dominique Martinet,
David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni,
Simon Horman
In-Reply-To: <20260310-b4-is_err_or_null-v1-24-bd63b656022d@avm.de>
On Tuesday, 10 March 2026 12:48:50 CET Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Change generated with coccinelle.
>
> To: Eric Van Hensbergen <ericvh@kernel.org>
> To: Latchesar Ionkov <lucho@ionkov.net>
> To: Dominique Martinet <asmadeus@codewreck.org>
> To: Christian Schoenebeck <linux_oss@crudebyte.com>
> To: "David S. Miller" <davem@davemloft.net>
> To: Eric Dumazet <edumazet@google.com>
> To: Jakub Kicinski <kuba@kernel.org>
> To: Paolo Abeni <pabeni@redhat.com>
> To: Simon Horman <horms@kernel.org>
> Cc: v9fs@lists.linux.dev
> Cc: netdev@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
> include/net/9p/client.h | 2 +-
> net/9p/trans_rdma.c | 8 ++++----
> 2 files changed, 5 insertions(+), 5 deletions(-)
Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com>
> diff --git a/include/net/9p/client.h b/include/net/9p/client.h
> index
> 838a94218b593f3fb19e6827c472753380193461..4bde6bd716f323c819745e64c7aac0dea
> 7beb72f 100644 --- a/include/net/9p/client.h
> +++ b/include/net/9p/client.h
> @@ -364,7 +364,7 @@ static inline struct p9_fid *p9_fid_get(struct p9_fid
> *fid)
>
> static inline int p9_fid_put(struct p9_fid *fid)
> {
> - if (!fid || IS_ERR(fid))
> + if (IS_ERR_OR_NULL(fid))
> return 0;
>
> if (tracepoint_enabled(9p_fid_ref))
> diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
> index
> aa5bd74d333f3b5e6fd1e4344d26bc0201ff7f7f..60461344b536bcb6e94112aace75a88b6
> a99ad86 100644 --- a/net/9p/trans_rdma.c
> +++ b/net/9p/trans_rdma.c
> @@ -252,16 +252,16 @@ static void rdma_destroy_trans(struct p9_trans_rdma
> *rdma) if (!rdma)
> return;
>
> - if (rdma->qp && !IS_ERR(rdma->qp))
> + if (!IS_ERR_OR_NULL(rdma->qp))
> ib_destroy_qp(rdma->qp);
>
> - if (rdma->pd && !IS_ERR(rdma->pd))
> + if (!IS_ERR_OR_NULL(rdma->pd))
> ib_dealloc_pd(rdma->pd);
>
> - if (rdma->cq && !IS_ERR(rdma->cq))
> + if (!IS_ERR_OR_NULL(rdma->cq))
> ib_free_cq(rdma->cq);
>
> - if (rdma->cm_id && !IS_ERR(rdma->cm_id))
> + if (!IS_ERR_OR_NULL(rdma->cm_id))
> rdma_destroy_id(rdma->cm_id);
>
> kfree(rdma);
--
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^ permalink raw reply
* Re: [PATCH 06/61] 9p: Prefer IS_ERR_OR_NULL over manual NULL check
From: Christian Schoenebeck @ 2026-03-10 13:45 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn, Philipp Hahn
Cc: Eric Van Hensbergen, Latchesar Ionkov, Dominique Martinet
In-Reply-To: <20260310-b4-is_err_or_null-v1-6-bd63b656022d@avm.de>
On Tuesday, 10 March 2026 12:48:32 CET Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Change generated with coccinelle.
>
> To: Eric Van Hensbergen <ericvh@kernel.org>
> To: Latchesar Ionkov <lucho@ionkov.net>
> To: Dominique Martinet <asmadeus@codewreck.org>
> To: Christian Schoenebeck <linux_oss@crudebyte.com>
> Cc: v9fs@lists.linux.dev
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
> fs/9p/fid.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
"fs/9p" in the subject on this one, please, not just "9p".
Except of that:
Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com>
> diff --git a/fs/9p/fid.h b/fs/9p/fid.h
> index
> 0d6138bee2a3d1ab565ab2d210c0a3f3bf97e4e3..3bb7ef4380e972a2d9ab67eb4aab6cc5b
> fe2eea7 100644 --- a/fs/9p/fid.h
> +++ b/fs/9p/fid.h
> @@ -27,7 +27,7 @@ static inline struct p9_fid *v9fs_fid_clone(struct dentry
> *dentry) struct p9_fid *fid, *nfid;
>
> fid = v9fs_fid_lookup(dentry);
> - if (!fid || IS_ERR(fid))
> + if (IS_ERR_OR_NULL(fid))
> return fid;
>
> nfid = clone_fid(fid);
--
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^ permalink raw reply
* Re: [PATCH] phy: qualcomm: usb-hs-28nm: use flex array
From: Konrad Dybcio @ 2026-03-10 13:39 UTC (permalink / raw)
To: Gustavo A. R. Silva, Rosen Penev, linux-phy
Cc: Vinod Koul, Neil Armstrong, Kees Cook, Gustavo A. R. Silva,
open list:ARM/QUALCOMM MAILING LIST, open list,
open list:KERNEL HARDENING (not covered by other areas):Keyword:b__counted_by(_le|_be)?b
In-Reply-To: <5bcef6ea-e83b-47c3-b75a-cfd13e4073c7@embeddedor.com>
On 3/5/26 5:52 AM, Gustavo A. R. Silva wrote:
> Hi!
>
> On 3/5/26 19:06, Konrad Dybcio wrote:
>> On 3/5/26 12:06 AM, Rosen Penev wrote:
>>> Allows simplifying allocation to a single kzalloc call.
>>>
>>> Also allows using __counted_by for extra runtime analysis.
>>>
>>> Signed-off-by: Rosen Penev <rosenp@gmail.com>
>>> ---
>>
>> I don't see how this is an improvement - __counted_by() is useful for
>> cases where we don't know how many entries there are, but in this
>> case it's fully deterministic (as priv->num_clks is a compile-time
>> constant)
>
> Will this always be the case in the future (entries being a compile-time
> constant)?
While I'm not high up enough to make those decisions, and if I were, I
would very much not be allowed to disclose them, my personal prediction
is that we are probably not going to make many more 28nm chips, if any
(see filename)
Konrad
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^ permalink raw reply
* Re: (subset) [PATCH 51/61] leds: Prefer IS_ERR_OR_NULL over manual NULL check
From: Lee Jones @ 2026-03-10 13:33 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Lee Jones, Pavel Machek
In-Reply-To: <20260310-b4-is_err_or_null-v1-51-bd63b656022d@avm.de>
On Tue, 10 Mar 2026 12:49:17 +0100, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Change generated with coccinelle.
>
>
Applied, thanks!
[51/61] leds: Prefer IS_ERR_OR_NULL over manual NULL check
commit: e68f95a51d1a8c1594b536c4d495cbea38d47561
--
Lee Jones [李琼斯]
--
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^ permalink raw reply
* Re: [PATCH 30/61] net/sunrpc: Prefer IS_ERR_OR_NULL over manual NULL check
From: Chuck Lever @ 2026-03-10 13:23 UTC (permalink / raw)
To: Philipp Hahn, amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel,
dri-devel, gfs2, intel-gfx, intel-wired-lan, iommu, kvm,
linux-arm-kernel, linux-block, linux-bluetooth, linux-btrfs,
linux-cifs, linux-clk, linux-erofs, linux-ext4, linux-fsdevel,
linux-gpio, linux-hyperv, linux-input, linux-kernel, linux-leds,
linux-media, linux-mips, linux-mm, linux-modules, linux-mtd,
linux-nfs, linux-omap, linux-phy, linux-pm, linux-rockchip,
linux-s390, linux-scsi, linux-sctp, linux-security-module,
linux-sh, linux-sound, linux-stm32, linux-trace-kernel, linux-usb,
linux-wireless, netdev, ntfs3, samba-technical, sched-ext,
target-devel, tipc-discussion, v9fs
Cc: Trond Myklebust, Anna Schumaker, Jeff Layton, NeilBrown,
Olga Kornievskaia, Dai Ngo, Tom Talpey, David S. Miller,
Eric Dumazet, Jakub Kicinski, Paolo Abeni, Simon Horman
In-Reply-To: <20260310-b4-is_err_or_null-v1-30-bd63b656022d@avm.de>
On 3/10/26 7:48 AM, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Change generated with coccinelle.
>
> To: Trond Myklebust <trondmy@kernel.org>
> To: Anna Schumaker <anna@kernel.org>
> To: Chuck Lever <chuck.lever@oracle.com>
> To: Jeff Layton <jlayton@kernel.org>
> To: NeilBrown <neil@brown.name>
> To: Olga Kornievskaia <okorniev@redhat.com>
> To: Dai Ngo <Dai.Ngo@oracle.com>
> To: Tom Talpey <tom@talpey.com>
> To: "David S. Miller" <davem@davemloft.net>
> To: Eric Dumazet <edumazet@google.com>
> To: Jakub Kicinski <kuba@kernel.org>
> To: Paolo Abeni <pabeni@redhat.com>
> To: Simon Horman <horms@kernel.org>
> Cc: linux-nfs@vger.kernel.org
> Cc: netdev@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
> net/sunrpc/xprtrdma/svc_rdma_transport.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
> index 9b623849723ed0eb74b827881c6f32d3434c891b..b4d03e59a8202f20360cff1e2e79b1e325396517 100644
> --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
> +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
> @@ -578,7 +578,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
> errout:
> /* Take a reference in case the DTO handler runs */
> svc_xprt_get(&newxprt->sc_xprt);
> - if (newxprt->sc_qp && !IS_ERR(newxprt->sc_qp))
> + if (!IS_ERR_OR_NULL(newxprt->sc_qp))
> ib_destroy_qp(newxprt->sc_qp);
> rdma_destroy_id(newxprt->sc_cm_id);
> rpcrdma_rn_unregister(dev, &newxprt->sc_rn);
> @@ -608,7 +608,7 @@ static void svc_rdma_free(struct svc_xprt *xprt)
> might_sleep();
>
> /* This blocks until the Completion Queues are empty */
> - if (rdma->sc_qp && !IS_ERR(rdma->sc_qp))
> + if (!IS_ERR_OR_NULL(rdma->sc_qp))
> ib_drain_qp(rdma->sc_qp);
> flush_workqueue(svcrdma_wq);
>
> @@ -619,16 +619,16 @@ static void svc_rdma_free(struct svc_xprt *xprt)
> svc_rdma_recv_ctxts_destroy(rdma);
>
> /* Destroy the QP if present (not a listener) */
> - if (rdma->sc_qp && !IS_ERR(rdma->sc_qp))
> + if (!IS_ERR_OR_NULL(rdma->sc_qp))
> ib_destroy_qp(rdma->sc_qp);
>
> - if (rdma->sc_sq_cq && !IS_ERR(rdma->sc_sq_cq))
> + if (!IS_ERR_OR_NULL(rdma->sc_sq_cq))
> ib_free_cq(rdma->sc_sq_cq);
>
> - if (rdma->sc_rq_cq && !IS_ERR(rdma->sc_rq_cq))
> + if (!IS_ERR_OR_NULL(rdma->sc_rq_cq))
> ib_free_cq(rdma->sc_rq_cq);
>
> - if (rdma->sc_pd && !IS_ERR(rdma->sc_pd))
> + if (!IS_ERR_OR_NULL(rdma->sc_pd))
> ib_dealloc_pd(rdma->sc_pd);
>
> /* Destroy the CM ID */
>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
--
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^ permalink raw reply
* Re: [PATCH 56/61] clk: Prefer IS_ERR_OR_NULL over manual NULL check
From: Brian Masney @ 2026-03-10 13:21 UTC (permalink / raw)
To: Philipp Hahn
Cc: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Michael Turquette, Stephen Boyd,
Daniel Lezcano, Thomas Gleixner
In-Reply-To: <20260310-b4-is_err_or_null-v1-56-bd63b656022d@avm.de>
On Tue, Mar 10, 2026 at 12:49:22PM +0100, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Semantich change: Previously the code only printed the warning on error,
Semantic ...
> but not when the pointer was NULL. Now the warning is printed in both
> cases!
>
> Change found with coccinelle.
>
> To: Michael Turquette <mturquette@baylibre.com>
> To: Stephen Boyd <sboyd@kernel.org>
> To: Daniel Lezcano <daniel.lezcano@kernel.org>
> To: Thomas Gleixner <tglx@kernel.org>
> Cc: linux-clk@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
With the minor typo addressed:
Reviewed-by: Brian Masney <bmasney@redhat.com>
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^ permalink raw reply
* Re: [PATCH 46/61] vfio: Prefer IS_ERR_OR_NULL over manual NULL check
From: Pranjal Shrivastava @ 2026-03-10 12:53 UTC (permalink / raw)
To: Philipp Hahn
Cc: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Alex Williamson
In-Reply-To: <20260310-b4-is_err_or_null-v1-46-bd63b656022d@avm.de>
On Tue, Mar 10, 2026 at 12:49:12PM +0100, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Change generated with coccinelle.
>
> To: Alex Williamson <alex@shazbot.org>
> Cc: kvm@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
> drivers/vfio/vfio_main.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c
> index 742477546b15d4dbaf9ebcfb2e67627db71521e0..d71922dfde5885967398deddec3e9e04b05adfec 100644
> --- a/drivers/vfio/vfio_main.c
> +++ b/drivers/vfio/vfio_main.c
> @@ -923,7 +923,7 @@ vfio_ioctl_device_feature_mig_device_state(struct vfio_device *device,
>
> /* Handle the VFIO_DEVICE_FEATURE_SET */
> filp = device->mig_ops->migration_set_state(device, mig.device_state);
> - if (IS_ERR(filp) || !filp)
> + if (IS_ERR_OR_NULL(filp))
> goto out_copy;
>
> return vfio_ioct_mig_return_fd(filp, arg, &mig);
>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
The cleanup alone looks fine, but I'm not sure if the maintainers would
be happy about the tree-wide spam, since each patch might go through a
different tree. I'd wait for Alex's preference/ack on that.
Thanks,
Praan
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^ permalink raw reply
* Re: [PATCH 57/61] reset: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Zabel @ 2026-03-10 12:43 UTC (permalink / raw)
To: Philipp Hahn, amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel,
dri-devel, gfs2, intel-gfx, intel-wired-lan, iommu, kvm,
linux-arm-kernel, linux-block, linux-bluetooth, linux-btrfs,
linux-cifs, linux-clk, linux-erofs, linux-ext4, linux-fsdevel,
linux-gpio, linux-hyperv, linux-input, linux-kernel, linux-leds,
linux-media, linux-mips, linux-mm, linux-modules, linux-mtd,
linux-nfs, linux-omap, linux-phy, linux-pm, linux-rockchip,
linux-s390, linux-scsi, linux-sctp, linux-security-module,
linux-sh, linux-sound, linux-stm32, linux-trace-kernel, linux-usb,
linux-wireless, netdev, ntfs3, samba-technical, sched-ext,
target-devel, tipc-discussion, v9fs
In-Reply-To: <20260310-b4-is_err_or_null-v1-57-bd63b656022d@avm.de>
Hi Philipp,
On Di, 2026-03-10 at 12:49 +0100, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Semantich change: Previously the code only printed the warning on error,
> but not when the pointer was NULL. Now the warning is printed in both
> cases!
No, rstc == NULL is valid (for optional reset controls) and must not
throw a warning.
regards
Philipp
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^ permalink raw reply
* Re: [PATCH 18/61] sound: Prefer IS_ERR_OR_NULL over manual NULL check
From: Mark Brown @ 2026-03-10 12:28 UTC (permalink / raw)
To: Philipp Hahn
Cc: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Sylwester Nawrocki, Liam Girdwood,
Jaroslav Kysela, Takashi Iwai, Max Filippov
In-Reply-To: <20260310-b4-is_err_or_null-v1-18-bd63b656022d@avm.de>
[-- Attachment #1.1: Type: text/plain, Size: 664 bytes --]
On Tue, Mar 10, 2026 at 12:48:44PM +0100, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
I can't tell what the dependency story is here, it looks like there's
none? If that's the case you shouldn't send things as a single series,
send separate patches to the various subsystems.
Please submit patches using subject lines reflecting the style for the
subsystem, this makes it easier for people to identify relevant patches.
Look at what existing commits in the area you're changing are doing and
make sure your subject lines visually resemble what they're doing.
There's no need to resubmit to fix this alone.
[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 112 bytes --]
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^ permalink raw reply
* Re: [PATCH 30/61] net/sunrpc: Prefer IS_ERR_OR_NULL over manual NULL check
From: Jeff Layton @ 2026-03-10 12:23 UTC (permalink / raw)
To: Philipp Hahn, amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel,
dri-devel, gfs2, intel-gfx, intel-wired-lan, iommu, kvm,
linux-arm-kernel, linux-block, linux-bluetooth, linux-btrfs,
linux-cifs, linux-clk, linux-erofs, linux-ext4, linux-fsdevel,
linux-gpio, linux-hyperv, linux-input, linux-kernel, linux-leds,
linux-media, linux-mips, linux-mm, linux-modules, linux-mtd,
linux-nfs, linux-omap, linux-phy, linux-pm, linux-rockchip,
linux-s390, linux-scsi, linux-sctp, linux-security-module,
linux-sh, linux-sound, linux-stm32, linux-trace-kernel, linux-usb,
linux-wireless, netdev, ntfs3, samba-technical, sched-ext,
target-devel, tipc-discussion, v9fs
Cc: Trond Myklebust, Anna Schumaker, Chuck Lever, NeilBrown,
Olga Kornievskaia, Dai Ngo, Tom Talpey, David S. Miller,
Eric Dumazet, Jakub Kicinski, Paolo Abeni, Simon Horman
In-Reply-To: <20260310-b4-is_err_or_null-v1-30-bd63b656022d@avm.de>
On Tue, 2026-03-10 at 12:48 +0100, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
>
> Change generated with coccinelle.
>
> To: Trond Myklebust <trondmy@kernel.org>
> To: Anna Schumaker <anna@kernel.org>
> To: Chuck Lever <chuck.lever@oracle.com>
> To: Jeff Layton <jlayton@kernel.org>
> To: NeilBrown <neil@brown.name>
> To: Olga Kornievskaia <okorniev@redhat.com>
> To: Dai Ngo <Dai.Ngo@oracle.com>
> To: Tom Talpey <tom@talpey.com>
> To: "David S. Miller" <davem@davemloft.net>
> To: Eric Dumazet <edumazet@google.com>
> To: Jakub Kicinski <kuba@kernel.org>
> To: Paolo Abeni <pabeni@redhat.com>
> To: Simon Horman <horms@kernel.org>
> Cc: linux-nfs@vger.kernel.org
> Cc: netdev@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
> net/sunrpc/xprtrdma/svc_rdma_transport.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
> index 9b623849723ed0eb74b827881c6f32d3434c891b..b4d03e59a8202f20360cff1e2e79b1e325396517 100644
> --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
> +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
> @@ -578,7 +578,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
> errout:
> /* Take a reference in case the DTO handler runs */
> svc_xprt_get(&newxprt->sc_xprt);
> - if (newxprt->sc_qp && !IS_ERR(newxprt->sc_qp))
> + if (!IS_ERR_OR_NULL(newxprt->sc_qp))
> ib_destroy_qp(newxprt->sc_qp);
> rdma_destroy_id(newxprt->sc_cm_id);
> rpcrdma_rn_unregister(dev, &newxprt->sc_rn);
> @@ -608,7 +608,7 @@ static void svc_rdma_free(struct svc_xprt *xprt)
> might_sleep();
>
> /* This blocks until the Completion Queues are empty */
> - if (rdma->sc_qp && !IS_ERR(rdma->sc_qp))
> + if (!IS_ERR_OR_NULL(rdma->sc_qp))
> ib_drain_qp(rdma->sc_qp);
> flush_workqueue(svcrdma_wq);
>
> @@ -619,16 +619,16 @@ static void svc_rdma_free(struct svc_xprt *xprt)
> svc_rdma_recv_ctxts_destroy(rdma);
>
> /* Destroy the QP if present (not a listener) */
> - if (rdma->sc_qp && !IS_ERR(rdma->sc_qp))
> + if (!IS_ERR_OR_NULL(rdma->sc_qp))
> ib_destroy_qp(rdma->sc_qp);
>
> - if (rdma->sc_sq_cq && !IS_ERR(rdma->sc_sq_cq))
> + if (!IS_ERR_OR_NULL(rdma->sc_sq_cq))
> ib_free_cq(rdma->sc_sq_cq);
>
> - if (rdma->sc_rq_cq && !IS_ERR(rdma->sc_rq_cq))
> + if (!IS_ERR_OR_NULL(rdma->sc_rq_cq))
> ib_free_cq(rdma->sc_rq_cq);
>
> - if (rdma->sc_pd && !IS_ERR(rdma->sc_pd))
> + if (!IS_ERR_OR_NULL(rdma->sc_pd))
> ib_dealloc_pd(rdma->sc_pd);
>
> /* Destroy the CM ID */
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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^ permalink raw reply
* Re: [PATCH 61/61] file: Drop unlikely() around IS_ERR_OR_NULL()
From: Jeff Layton @ 2026-03-10 12:23 UTC (permalink / raw)
To: Philipp Hahn, amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel,
dri-devel, gfs2, intel-gfx, intel-wired-lan, iommu, kvm,
linux-arm-kernel, linux-block, linux-bluetooth, linux-btrfs,
linux-cifs, linux-clk, linux-erofs, linux-ext4, linux-fsdevel,
linux-gpio, linux-hyperv, linux-input, linux-kernel, linux-leds,
linux-media, linux-mips, linux-mm, linux-modules, linux-mtd,
linux-nfs, linux-omap, linux-phy, linux-pm, linux-rockchip,
linux-s390, linux-scsi, linux-sctp, linux-security-module,
linux-sh, linux-sound, linux-stm32, linux-trace-kernel, linux-usb,
linux-wireless, netdev, ntfs3, samba-technical, sched-ext,
target-devel, tipc-discussion, v9fs
Cc: Christian Brauner
In-Reply-To: <20260310-b4-is_err_or_null-v1-61-bd63b656022d@avm.de>
On Tue, 2026-03-10 at 12:49 +0100, Philipp Hahn wrote:
> IS_ERR_OR_NULL() already uses likely(!ptr) internally. checkpatch does
> not like nesting it:
> > WARNING: nested (un)?likely() calls, IS_ERR_OR_NULL already uses
> > unlikely() internally
> Remove the explicit use of unlikely().
>
> Change generated with coccinelle.
>
> To: Christian Brauner <brauner@kernel.org>
> To: Jeff Layton <jlayton@kernel.org>
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
> include/linux/file.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/file.h b/include/linux/file.h
> index 27484b444d3155685cdbb89f546f26ef66e3e1b4..007b9b9d365a052c1c056e12571eaf4f8ef5a45c 100644
> --- a/include/linux/file.h
> +++ b/include/linux/file.h
> @@ -163,7 +163,7 @@ static inline void class_fd_prepare_destructor(const struct fd_prepare *fdf)
> {
> if (unlikely(fdf->__fd >= 0))
> put_unused_fd(fdf->__fd);
> - if (unlikely(!IS_ERR_OR_NULL(fdf->__file)))
> + if (!IS_ERR_OR_NULL(fdf->__file))
> fput(fdf->__file);
> }
>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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^ permalink raw reply
* Re: [PATCH 37/61] drm: Prefer IS_ERR_OR_NULL over manual NULL check
From: Christian König @ 2026-03-10 12:08 UTC (permalink / raw)
To: Philipp Hahn, amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel,
dri-devel, gfs2, intel-gfx, intel-wired-lan, iommu, kvm,
linux-arm-kernel, linux-block, linux-bluetooth, linux-btrfs,
linux-cifs, linux-clk, linux-erofs, linux-ext4, linux-fsdevel,
linux-gpio, linux-hyperv, linux-input, linux-kernel, linux-leds,
linux-media, linux-mips, linux-mm, linux-modules, linux-mtd,
linux-nfs, linux-omap, linux-phy, linux-pm, linux-rockchip,
linux-s390, linux-scsi, linux-sctp, linux-security-module,
linux-sh, linux-sound, linux-stm32, linux-trace-kernel, linux-usb,
linux-wireless, netdev, ntfs3, samba-technical, sched-ext,
target-devel, tipc-discussion, v9fs
Cc: Andrzej Hajda, Neil Armstrong, Robert Foss, Laurent Pinchart,
Jonas Karlman, Jernej Skrabec, Maarten Lankhorst, Maxime Ripard,
Thomas Zimmermann, David Airlie, Simona Vetter, Zhenyu Wang,
Zhi Wang, Jani Nikula, Joonas Lahtinen, Rodrigo Vivi,
Tvrtko Ursulin, Alex Deucher, Sandy Huang, Heiko Stübner,
Andy Yan
In-Reply-To: <20260310-b4-is_err_or_null-v1-37-bd63b656022d@avm.de>
On 3/10/26 12:49, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
Looks like a reasonable cleanup but could be that driver maintainers want to take that through their individual branches to avoid conflicts.
Alternatively when the i915 and rockship maintainers say that they are fine with the change I'm happy to push this to drm-misc-next.
Regards,
Christian.
>
> Change generated with coccinelle.
>
> To: Andrzej Hajda <andrzej.hajda@intel.com>
> To: Neil Armstrong <neil.armstrong@linaro.org>
> To: Robert Foss <rfoss@kernel.org>
> To: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
> To: Jonas Karlman <jonas@kwiboo.se>
> To: Jernej Skrabec <jernej.skrabec@gmail.com>
> To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> To: Maxime Ripard <mripard@kernel.org>
> To: Thomas Zimmermann <tzimmermann@suse.de>
> To: David Airlie <airlied@gmail.com>
> To: Simona Vetter <simona@ffwll.ch>
> To: Zhenyu Wang <zhenyuw.linux@gmail.com>
> To: Zhi Wang <zhi.wang.linux@gmail.com>
> To: Jani Nikula <jani.nikula@linux.intel.com>
> To: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> To: Rodrigo Vivi <rodrigo.vivi@intel.com>
> To: Tvrtko Ursulin <tursulin@ursulin.net>
> To: Alex Deucher <alexander.deucher@amd.com>
> To: "Christian König" <christian.koenig@amd.com>
> To: Sandy Huang <hjc@rock-chips.com>
> To: "Heiko Stübner" <heiko@sntech.de>
> To: Andy Yan <andy.yan@rock-chips.com>
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-kernel@vger.kernel.org
> Cc: intel-gfx@lists.freedesktop.org
> Cc: amd-gfx@lists.freedesktop.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-rockchip@lists.infradead.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 2 +-
> drivers/gpu/drm/drm_sysfs.c | 2 +-
> drivers/gpu/drm/i915/gvt/scheduler.c | 4 ++--
> drivers/gpu/drm/radeon/radeon_test.c | 2 +-
> drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 2 +-
> 5 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index ee88c0e793b0416d20105a43448cb4037402e64b..64fa2bc8d28197147ee22b4f74134cc27dd9b32d 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -3608,7 +3608,7 @@ void dw_hdmi_remove(struct dw_hdmi *hdmi)
> {
> drm_bridge_remove(&hdmi->bridge);
>
> - if (hdmi->audio && !IS_ERR(hdmi->audio))
> + if (!IS_ERR_OR_NULL(hdmi->audio))
> platform_device_unregister(hdmi->audio);
> if (!IS_ERR(hdmi->cec))
> platform_device_unregister(hdmi->cec);
> diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
> index ef4e923a872843339743d21e4877225855da921e..6748acb4163e8f5658c9201a0412b38862c7baab 100644
> --- a/drivers/gpu/drm/drm_sysfs.c
> +++ b/drivers/gpu/drm/drm_sysfs.c
> @@ -600,7 +600,7 @@ struct device *drm_sysfs_minor_alloc(struct drm_minor *minor)
> */
> int drm_class_device_register(struct device *dev)
> {
> - if (!drm_class || IS_ERR(drm_class))
> + if (IS_ERR_OR_NULL(drm_class))
> return -ENOENT;
>
> dev->class = drm_class;
> diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
> index 15fdd514ca836e84f4de95e3207ab45bb9243426..933ec5ffa1f1ebafd687996f167b982490702211 100644
> --- a/drivers/gpu/drm/i915/gvt/scheduler.c
> +++ b/drivers/gpu/drm/i915/gvt/scheduler.c
> @@ -675,10 +675,10 @@ static void release_shadow_batch_buffer(struct intel_vgpu_workload *workload)
> list_for_each_entry_safe(bb, pos, &workload->shadow_bb, list) {
> if (bb->obj) {
> i915_gem_object_lock(bb->obj, NULL);
> - if (bb->va && !IS_ERR(bb->va))
> + if (!IS_ERR_OR_NULL(bb->va))
> i915_gem_object_unpin_map(bb->obj);
>
> - if (bb->vma && !IS_ERR(bb->vma))
> + if (!IS_ERR_OR_NULL(bb->vma))
> i915_vma_unpin(bb->vma);
>
> i915_gem_object_unlock(bb->obj);
> diff --git a/drivers/gpu/drm/radeon/radeon_test.c b/drivers/gpu/drm/radeon/radeon_test.c
> index 0b459f7df23bae3eef7e36f4b5f35638fb6f4985..573284c4af60f12d7edec889260fc8a2e2b70420 100644
> --- a/drivers/gpu/drm/radeon/radeon_test.c
> +++ b/drivers/gpu/drm/radeon/radeon_test.c
> @@ -234,7 +234,7 @@ static void radeon_do_test_moves(struct radeon_device *rdev, int flag)
> radeon_bo_unreserve(gtt_obj[i]);
> radeon_bo_unref(>t_obj[i]);
> }
> - if (fence && !IS_ERR(fence))
> + if (!IS_ERR_OR_NULL(fence))
> radeon_fence_unref(&fence);
> break;
> }
> diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
> index 3547d91b25d317c6cad690da7d97a7e5436c0236..8a267de85da9c76c2e29b2ababf1218e400282c2 100644
> --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
> @@ -1095,7 +1095,7 @@ static int dw_mipi_dsi_rockchip_host_detach(void *priv_data,
> struct device *second;
>
> second = dw_mipi_dsi_rockchip_find_second(dsi);
> - if (second && !IS_ERR(second))
> + if (!IS_ERR_OR_NULL(second))
> component_del(second, &dw_mipi_dsi_rockchip_ops);
>
> component_del(dsi->dev, &dw_mipi_dsi_rockchip_ops);
>
> --
> 2.43.0
>
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply
* [PATCH 58/61] arch/x86: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn @ 2026-03-10 11:49 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen, x86,
H. Peter Anvin
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.
IS_ERR_OR_NULL() already uses likely(!ptr) internally. checkpatch does
not like nesting it:
> WARNING: nested (un)?likely() calls, IS_ERR_OR_NULL already uses
> unlikely() internally
Remove the explicit use of likely().
Semantich change: Previously the code only printed the warning on error,
but not when the pointer was NULL. Now the warning is printed in both
cases!
Change found with coccinelle.
To: Thomas Gleixner <tglx@kernel.org>
To: Ingo Molnar <mingo@redhat.com>
To: Borislav Petkov <bp@alien8.de>
To: Dave Hansen <dave.hansen@linux.intel.com>
To: x86@kernel.org
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
arch/x86/kernel/callthunks.c | 2 +-
arch/x86/kernel/irq.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/callthunks.c b/arch/x86/kernel/callthunks.c
index e37728f7032277a99ffb0e6bb7dfa318660e56a0..6dc45838d8e439e117815b85e2840bb3a6688ed8 100644
--- a/arch/x86/kernel/callthunks.c
+++ b/arch/x86/kernel/callthunks.c
@@ -212,7 +212,7 @@ static __init_or_module void patch_call(void *addr, const struct core_text *ct)
return;
dest = call_get_dest(addr);
- if (!dest || WARN_ON_ONCE(IS_ERR(dest)))
+ if (WARN_ON_ONCE(IS_ERR_OR_NULL(dest)))
return;
if (!is_coretext(ct, dest))
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index ec77be217eaf5f558fa73c2ff6cf1ab8953ee2f8..81963909066d72607f58d3e443a21a3b3e701a99 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -282,7 +282,7 @@ static __always_inline bool call_irq_handler(int vector, struct pt_regs *regs)
{
struct irq_desc *desc = __this_cpu_read(vector_irq[vector]);
- if (likely(!IS_ERR_OR_NULL(desc))) {
+ if (!IS_ERR_OR_NULL(desc)) {
handle_irq(desc, regs);
return true;
}
--
2.43.0
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply related
* [PATCH 61/61] file: Drop unlikely() around IS_ERR_OR_NULL()
From: Philipp Hahn @ 2026-03-10 11:49 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Christian Brauner, Jeff Layton
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
IS_ERR_OR_NULL() already uses likely(!ptr) internally. checkpatch does
not like nesting it:
> WARNING: nested (un)?likely() calls, IS_ERR_OR_NULL already uses
> unlikely() internally
Remove the explicit use of unlikely().
Change generated with coccinelle.
To: Christian Brauner <brauner@kernel.org>
To: Jeff Layton <jlayton@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
include/linux/file.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/file.h b/include/linux/file.h
index 27484b444d3155685cdbb89f546f26ef66e3e1b4..007b9b9d365a052c1c056e12571eaf4f8ef5a45c 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -163,7 +163,7 @@ static inline void class_fd_prepare_destructor(const struct fd_prepare *fdf)
{
if (unlikely(fdf->__fd >= 0))
put_unused_fd(fdf->__fd);
- if (unlikely(!IS_ERR_OR_NULL(fdf->__file)))
+ if (!IS_ERR_OR_NULL(fdf->__file))
fput(fdf->__file);
}
--
2.43.0
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply related
* [PATCH 38/61] net: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn @ 2026-03-10 11:49 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Igor Russkikh, Andrew Lunn, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Pavan Chebbi, Michael Chan,
Potnuri Bharat Teja, Tony Nguyen, Przemek Kitszel, Taras Chornyi,
Maxime Coquelin, Alexandre Torgue, Iyappan Subramanian,
Keyur Chudgar, Quan Nguyen, Heiner Kallweit, Russell King
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.
Change generated with coccinelle.
To: Igor Russkikh <irusskikh@marvell.com>
To: Andrew Lunn <andrew+netdev@lunn.ch>
To: "David S. Miller" <davem@davemloft.net>
To: Eric Dumazet <edumazet@google.com>
To: Jakub Kicinski <kuba@kernel.org>
To: Paolo Abeni <pabeni@redhat.com>
To: Pavan Chebbi <pavan.chebbi@broadcom.com>
To: Michael Chan <mchan@broadcom.com>
To: Potnuri Bharat Teja <bharat@chelsio.com>
To: Tony Nguyen <anthony.l.nguyen@intel.com>
To: Przemek Kitszel <przemyslaw.kitszel@intel.com>
To: Taras Chornyi <taras.chornyi@plvision.eu>
To: Maxime Coquelin <mcoquelin.stm32@gmail.com>
To: Alexandre Torgue <alexandre.torgue@foss.st.com>
To: Iyappan Subramanian <iyappan@os.amperecomputing.com>
To: Keyur Chudgar <keyur@os.amperecomputing.com>
To: Quan Nguyen <quan@os.amperecomputing.com>
To: Heiner Kallweit <hkallweit1@gmail.com>
To: Russell King <linux@armlinux.org.uk>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: intel-wired-lan@lists.osuosl.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-usb@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
drivers/net/ethernet/aquantia/atlantic/aq_ring.c | 2 +-
drivers/net/ethernet/broadcom/tg3.c | 2 +-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 3 +--
drivers/net/ethernet/intel/ice/devlink/devlink.c | 2 +-
drivers/net/ethernet/marvell/prestera/prestera_router.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
drivers/net/mdio/mdio-xgene.c | 2 +-
drivers/net/usb/r8152.c | 2 +-
8 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index e270327e47fd804cc8ee5cfd53ed1b993c955c41..43edef35c4b1ff606b2f1519a07fad4c9a990ad4 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -810,7 +810,7 @@ static int __aq_ring_xdp_clean(struct aq_ring_s *rx_ring,
}
skb = aq_xdp_run_prog(aq_nic, &xdp, rx_ring, buff);
- if (IS_ERR(skb) || !skb)
+ if (IS_ERR_OR_NULL(skb))
continue;
if (ptp_hwtstamp_len > 0)
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 2328fce336447eb4a796f9300ccc0ab536ff0a35..8ed79f34f03d81184dcc12e6eaff009cb8f7756e 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -7943,7 +7943,7 @@ static int tg3_tso_bug(struct tg3 *tp, struct tg3_napi *tnapi,
segs = skb_gso_segment(skb, tp->dev->features &
~(NETIF_F_TSO | NETIF_F_TSO6));
- if (IS_ERR(segs) || !segs) {
+ if (IS_ERR_OR_NULL(segs)) {
tnapi->tx_dropped++;
goto tg3_tso_bug_end;
}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
index 3307e50426819087ad985178c4a5383f16b8e7b4..1c8a6445d4b2e3535d8f1b7908dd02d8dd2f23fa 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
@@ -1032,8 +1032,7 @@ static void ch_flower_stats_handler(struct work_struct *work)
do {
rhashtable_walk_start(&iter);
- while ((flower_entry = rhashtable_walk_next(&iter)) &&
- !IS_ERR(flower_entry)) {
+ while (!IS_ERR_OR_NULL((flower_entry = rhashtable_walk_next(&iter)))) {
ret = cxgb4_get_filter_counters(adap->port[0],
flower_entry->filter_id,
&packets, &bytes,
diff --git a/drivers/net/ethernet/intel/ice/devlink/devlink.c b/drivers/net/ethernet/intel/ice/devlink/devlink.c
index 6c72bd15db6d75a1d4fa04ef8fefbd26fb6e84bd..3d08b9187fd76ca3198af28111b6f1c1765ea01e 100644
--- a/drivers/net/ethernet/intel/ice/devlink/devlink.c
+++ b/drivers/net/ethernet/intel/ice/devlink/devlink.c
@@ -791,7 +791,7 @@ static void ice_traverse_tx_tree(struct devlink *devlink, struct ice_sched_node
node->parent->rate_node);
}
- if (rate_node && !IS_ERR(rate_node))
+ if (!IS_ERR_OR_NULL(rate_node))
node->rate_node = rate_node;
traverse_children:
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_router.c b/drivers/net/ethernet/marvell/prestera/prestera_router.c
index b036b173a308b5f994ad8538eb010fa27196988c..4492938e8a3da91d32efe8d45ccbe2eb437c0e49 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_router.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_router.c
@@ -1061,7 +1061,7 @@ static void __prestera_k_arb_hw_state_upd(struct prestera_switch *sw,
n = NULL;
}
- if (!IS_ERR(n) && n) {
+ if (!IS_ERR_OR_NULL(n)) {
neigh_event_send(n, NULL);
neigh_release(n);
} else {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 6827c99bde8c22db42b363d2d36ad6f26075ed50..356a4e9ce04b1fcf8786d7274d31ace404be2cf6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1275,7 +1275,7 @@ static int stmmac_init_phy(struct net_device *dev)
/* Some DT bindings do not set-up the PHY handle. Let's try to
* manually parse it
*/
- if (!phy_fwnode || IS_ERR(phy_fwnode)) {
+ if (IS_ERR_OR_NULL(phy_fwnode)) {
int addr = priv->plat->phy_addr;
struct phy_device *phydev;
diff --git a/drivers/net/mdio/mdio-xgene.c b/drivers/net/mdio/mdio-xgene.c
index a8f91a4b7fed0927ee14e408000cd3a2bfb9b09a..09b30b563295c6085dc1358ac361301e5cf6b2a8 100644
--- a/drivers/net/mdio/mdio-xgene.c
+++ b/drivers/net/mdio/mdio-xgene.c
@@ -265,7 +265,7 @@ struct phy_device *xgene_enet_phy_register(struct mii_bus *bus, int phy_addr)
struct phy_device *phy_dev;
phy_dev = get_phy_device(bus, phy_addr, false);
- if (!phy_dev || IS_ERR(phy_dev))
+ if (IS_ERR_OR_NULL(phy_dev))
return NULL;
if (phy_device_register(phy_dev))
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 0c83bbbea2e7c322ee6339893e281237663bd3ae..73f17ebd7d40007eec5004f887a46249defd28ab 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -2218,7 +2218,7 @@ static void r8152_csum_workaround(struct r8152 *tp, struct sk_buff *skb,
features &= ~(NETIF_F_SG | NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
segs = skb_gso_segment(skb, features);
- if (IS_ERR(segs) || !segs)
+ if (IS_ERR_OR_NULL(segs))
goto drop;
__skb_queue_head_init(&seg_list);
--
2.43.0
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply related
* [PATCH 24/61] net/9p: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn @ 2026-03-10 11:48 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Eric Van Hensbergen, Latchesar Ionkov, Dominique Martinet,
Christian Schoenebeck, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Simon Horman
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.
Change generated with coccinelle.
To: Eric Van Hensbergen <ericvh@kernel.org>
To: Latchesar Ionkov <lucho@ionkov.net>
To: Dominique Martinet <asmadeus@codewreck.org>
To: Christian Schoenebeck <linux_oss@crudebyte.com>
To: "David S. Miller" <davem@davemloft.net>
To: Eric Dumazet <edumazet@google.com>
To: Jakub Kicinski <kuba@kernel.org>
To: Paolo Abeni <pabeni@redhat.com>
To: Simon Horman <horms@kernel.org>
Cc: v9fs@lists.linux.dev
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
include/net/9p/client.h | 2 +-
net/9p/trans_rdma.c | 8 ++++----
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 838a94218b593f3fb19e6827c472753380193461..4bde6bd716f323c819745e64c7aac0dea7beb72f 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -364,7 +364,7 @@ static inline struct p9_fid *p9_fid_get(struct p9_fid *fid)
static inline int p9_fid_put(struct p9_fid *fid)
{
- if (!fid || IS_ERR(fid))
+ if (IS_ERR_OR_NULL(fid))
return 0;
if (tracepoint_enabled(9p_fid_ref))
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index aa5bd74d333f3b5e6fd1e4344d26bc0201ff7f7f..60461344b536bcb6e94112aace75a88b6a99ad86 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -252,16 +252,16 @@ static void rdma_destroy_trans(struct p9_trans_rdma *rdma)
if (!rdma)
return;
- if (rdma->qp && !IS_ERR(rdma->qp))
+ if (!IS_ERR_OR_NULL(rdma->qp))
ib_destroy_qp(rdma->qp);
- if (rdma->pd && !IS_ERR(rdma->pd))
+ if (!IS_ERR_OR_NULL(rdma->pd))
ib_dealloc_pd(rdma->pd);
- if (rdma->cq && !IS_ERR(rdma->cq))
+ if (!IS_ERR_OR_NULL(rdma->cq))
ib_free_cq(rdma->cq);
- if (rdma->cm_id && !IS_ERR(rdma->cm_id))
+ if (!IS_ERR_OR_NULL(rdma->cm_id))
rdma_destroy_id(rdma->cm_id);
kfree(rdma);
--
2.43.0
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply related
* [PATCH 15/61] trace: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn @ 2026-03-10 11:48 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Steven Rostedt, Masami Hiramatsu, Mathieu Desnoyers
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.
Change generated with coccinelle.
To: Steven Rostedt <rostedt@goodmis.org>
To: Masami Hiramatsu <mhiramat@kernel.org>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-trace-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
kernel/trace/fprobe.c | 2 +-
kernel/trace/kprobe_event_gen_test.c | 2 +-
kernel/trace/trace_events_hist.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/trace/fprobe.c b/kernel/trace/fprobe.c
index dcadf1d23b8a31f571392d0c49cbd22df1716b4f..a94ce810d83b90f55d1178a9bd29c78fd068df4c 100644
--- a/kernel/trace/fprobe.c
+++ b/kernel/trace/fprobe.c
@@ -607,7 +607,7 @@ static int fprobe_module_callback(struct notifier_block *nb,
do {
rhashtable_walk_start(&iter);
- while ((node = rhashtable_walk_next(&iter)) && !IS_ERR(node))
+ while (!IS_ERR_OR_NULL((node = rhashtable_walk_next(&iter))))
fprobe_remove_node_in_module(mod, node, &alist);
rhashtable_walk_stop(&iter);
diff --git a/kernel/trace/kprobe_event_gen_test.c b/kernel/trace/kprobe_event_gen_test.c
index 5a4b722b50451bfdee42769a6d3be39c055690d1..a1735ca273f0b756aa1fcfcdab30ddad9bc51c5f 100644
--- a/kernel/trace/kprobe_event_gen_test.c
+++ b/kernel/trace/kprobe_event_gen_test.c
@@ -75,7 +75,7 @@ static struct trace_event_file *gen_kretprobe_test;
static bool trace_event_file_is_valid(struct trace_event_file *input)
{
- return input && !IS_ERR(input);
+ return !IS_ERR_OR_NULL(input);
}
/*
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 73ea180cad555898693e92ee397a1c9493c7c167..59df215e1dfd9349eca1c0823ed709ec7285f766 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -3973,7 +3973,7 @@ trace_action_create_field_var(struct hist_trigger_data *hist_data,
*/
field_var = create_target_field_var(hist_data, system, event, var);
- if (field_var && !IS_ERR(field_var)) {
+ if (!IS_ERR_OR_NULL(field_var)) {
save_field_var(hist_data, field_var);
hist_field = field_var->var;
} else {
--
2.43.0
--
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linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply related
* [PATCH 39/61] irqchip: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn @ 2026-03-10 11:49 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Marc Zyngier, Thomas Gleixner, Andrew Lunn, Gregory Clement,
Sebastian Hesselbarth
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.
Change generated with coccinelle.
To: Marc Zyngier <maz@kernel.org>
To: Thomas Gleixner <tglx@kernel.org>
To: Andrew Lunn <andrew@lunn.ch>
To: Gregory Clement <gregory.clement@bootlin.com>
To: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
drivers/irqchip/irq-gic-v3.c | 2 +-
drivers/irqchip/irq-mvebu-odmi.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 20f13b686ab22faf722dd2b24faf96af636a4bbd..6dc9827357a21ae05dd838fb717871c73f3c7562 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -2252,7 +2252,7 @@ static int __init gic_of_init(struct device_node *node, struct device_node *pare
out_unmap_rdist:
for (i = 0; i < nr_redist_regions; i++)
- if (rdist_regs[i].redist_base && !IS_ERR(rdist_regs[i].redist_base))
+ if (!IS_ERR_OR_NULL(rdist_regs[i].redist_base))
iounmap(rdist_regs[i].redist_base);
kfree(rdist_regs);
out_unmap_dist:
diff --git a/drivers/irqchip/irq-mvebu-odmi.c b/drivers/irqchip/irq-mvebu-odmi.c
index b99ab9dcc14b3ba982876cf5525499d02bc1c997..94e7eda46e81833cfe0479b6fabba715bf4ef6b8 100644
--- a/drivers/irqchip/irq-mvebu-odmi.c
+++ b/drivers/irqchip/irq-mvebu-odmi.c
@@ -217,7 +217,7 @@ static int __init mvebu_odmi_init(struct device_node *node,
for (i = 0; i < odmis_count; i++) {
struct odmi_data *odmi = &odmis[i];
- if (odmi->base && !IS_ERR(odmi->base))
+ if (!IS_ERR_OR_NULL(odmi->base))
iounmap(odmis[i].base);
}
bitmap_free(odmis_bm);
--
2.43.0
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply related
* [PATCH 45/61] thermal: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn @ 2026-03-10 11:49 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Eduardo Valentin, Keerthy, Rafael J. Wysocki, Daniel Lezcano,
Zhang Rui, Lukasz Luba
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.
Change generated with coccinelle.
To: Eduardo Valentin <edubezval@gmail.com>
To: Keerthy <j-keerthy@ti.com>
To: "Rafael J. Wysocki" <rafael@kernel.org>
To: Daniel Lezcano <daniel.lezcano@kernel.org>
To: Zhang Rui <rui.zhang@intel.com>
To: Lukasz Luba <lukasz.luba@arm.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
drivers/thermal/ti-soc-thermal/ti-thermal-common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
index 0cf0826b805a998abd0d4e2cfa6938de8a46c4f0..9218417e6d923ec370e032f5b91f9a839fd293f4 100644
--- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
@@ -228,7 +228,7 @@ int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
return 0;
data = ti_bandgap_get_sensor_data(bgp, id);
- if (!data || IS_ERR(data))
+ if (IS_ERR_OR_NULL(data))
data = ti_thermal_build_data(bgp, id);
if (!data)
--
2.43.0
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply related
* [PATCH 32/61] net/wireless: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn @ 2026-03-10 11:48 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Johannes Berg
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.
Change generated with coccinelle.
To: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-wireless@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
net/wireless/reg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 1c5c38d18febd511285bc4aab93a60b4287dc054..222764a151ea25bec6179dbaffa87f34fdbf8da6 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1014,7 +1014,7 @@ static void regdb_fw_cb(const struct firmware *fw, void *context)
}
rtnl_lock();
- if (regdb && !IS_ERR(regdb)) {
+ if (!IS_ERR_OR_NULL(regdb)) {
/* negative case - a bug
* positive case - can happen due to race in case of multiple cb's in
* queue, due to usage of asynchronous callback
--
2.43.0
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply related
* [PATCH 54/61] aoe: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn @ 2026-03-10 11:49 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Justin Sanders, Jens Axboe
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.
Change generated with coccinelle.
To: Justin Sanders <justin@coraid.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
drivers/block/aoe/aoecmd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index a4744a30a8af4ff05113f3234021eec728265b4f..b31e539a66433a0a5d6e81117a32d12735ffc1bc 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -1268,7 +1268,7 @@ aoe_ktstart(struct ktstate *k)
init_completion(&k->rendez);
task = kthread_run(kthread, k, "%s", k->name);
- if (task == NULL || IS_ERR(task))
+ if (IS_ERR_OR_NULL(task))
return -ENOMEM;
k->task = task;
wait_for_completion(&k->rendez); /* allow kthread to start */
--
2.43.0
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
^ permalink raw reply related
* [PATCH 30/61] net/sunrpc: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn @ 2026-03-10 11:48 UTC (permalink / raw)
To: amd-gfx, apparmor, bpf, ceph-devel, cocci, dm-devel, dri-devel,
gfs2, intel-gfx, intel-wired-lan, iommu, kvm, linux-arm-kernel,
linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk,
linux-erofs, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv,
linux-input, linux-kernel, linux-leds, linux-media, linux-mips,
linux-mm, linux-modules, linux-mtd, linux-nfs, linux-omap,
linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi,
linux-sctp, linux-security-module, linux-sh, linux-sound,
linux-stm32, linux-trace-kernel, linux-usb, linux-wireless,
netdev, ntfs3, samba-technical, sched-ext, target-devel,
tipc-discussion, v9fs, Philipp Hahn
Cc: Trond Myklebust, Anna Schumaker, Chuck Lever, Jeff Layton,
NeilBrown, Olga Kornievskaia, Dai Ngo, Tom Talpey,
David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni,
Simon Horman
In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.
Change generated with coccinelle.
To: Trond Myklebust <trondmy@kernel.org>
To: Anna Schumaker <anna@kernel.org>
To: Chuck Lever <chuck.lever@oracle.com>
To: Jeff Layton <jlayton@kernel.org>
To: NeilBrown <neil@brown.name>
To: Olga Kornievskaia <okorniev@redhat.com>
To: Dai Ngo <Dai.Ngo@oracle.com>
To: Tom Talpey <tom@talpey.com>
To: "David S. Miller" <davem@davemloft.net>
To: Eric Dumazet <edumazet@google.com>
To: Jakub Kicinski <kuba@kernel.org>
To: Paolo Abeni <pabeni@redhat.com>
To: Simon Horman <horms@kernel.org>
Cc: linux-nfs@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
net/sunrpc/xprtrdma/svc_rdma_transport.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 9b623849723ed0eb74b827881c6f32d3434c891b..b4d03e59a8202f20360cff1e2e79b1e325396517 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -578,7 +578,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
errout:
/* Take a reference in case the DTO handler runs */
svc_xprt_get(&newxprt->sc_xprt);
- if (newxprt->sc_qp && !IS_ERR(newxprt->sc_qp))
+ if (!IS_ERR_OR_NULL(newxprt->sc_qp))
ib_destroy_qp(newxprt->sc_qp);
rdma_destroy_id(newxprt->sc_cm_id);
rpcrdma_rn_unregister(dev, &newxprt->sc_rn);
@@ -608,7 +608,7 @@ static void svc_rdma_free(struct svc_xprt *xprt)
might_sleep();
/* This blocks until the Completion Queues are empty */
- if (rdma->sc_qp && !IS_ERR(rdma->sc_qp))
+ if (!IS_ERR_OR_NULL(rdma->sc_qp))
ib_drain_qp(rdma->sc_qp);
flush_workqueue(svcrdma_wq);
@@ -619,16 +619,16 @@ static void svc_rdma_free(struct svc_xprt *xprt)
svc_rdma_recv_ctxts_destroy(rdma);
/* Destroy the QP if present (not a listener) */
- if (rdma->sc_qp && !IS_ERR(rdma->sc_qp))
+ if (!IS_ERR_OR_NULL(rdma->sc_qp))
ib_destroy_qp(rdma->sc_qp);
- if (rdma->sc_sq_cq && !IS_ERR(rdma->sc_sq_cq))
+ if (!IS_ERR_OR_NULL(rdma->sc_sq_cq))
ib_free_cq(rdma->sc_sq_cq);
- if (rdma->sc_rq_cq && !IS_ERR(rdma->sc_rq_cq))
+ if (!IS_ERR_OR_NULL(rdma->sc_rq_cq))
ib_free_cq(rdma->sc_rq_cq);
- if (rdma->sc_pd && !IS_ERR(rdma->sc_pd))
+ if (!IS_ERR_OR_NULL(rdma->sc_pd))
ib_dealloc_pd(rdma->sc_pd);
/* Destroy the CM ID */
--
2.43.0
--
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linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
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