From: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
To: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: linux-coco@lists.linux.dev, kvmarm@lists.linux.dev,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
dan.j.williams@intel.com, aik@amd.com, lukas@wunner.de,
Samuel Ortiz <sameo@rivosinc.com>,
Xu Yilun <yilun.xu@linux.intel.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
Suzuki K Poulose <Suzuki.Poulose@arm.com>,
Steven Price <steven.price@arm.com>,
Bjorn Helgaas <helgaas@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>
Subject: Re: [PATCH RESEND v2 06/12] coco: host: arm64: Add RMM device communication helpers
Date: Thu, 30 Oct 2025 21:50:22 +0530 [thread overview]
Message-ID: <yq5apla4cqex.fsf@kernel.org> (raw)
In-Reply-To: <20251029183306.0000485c@huawei.com>
Jonathan Cameron <jonathan.cameron@huawei.com> writes:
> On Mon, 27 Oct 2025 15:25:56 +0530
> "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org> wrote:
>
...
>> +static int __do_dev_communicate(enum dev_comm_type type,
>> + struct pci_tsm *tsm, unsigned long error_state)
>> +{
>> + int ret;
>> + int state;
>> + struct rmi_dev_comm_enter *io_enter;
>> + struct cca_host_pf0_dsc *pf0_dsc = to_cca_pf0_dsc(tsm->dsm_dev);
>> +
>> + io_enter = &pf0_dsc->comm_data.io_params->enter;
>> + io_enter->resp_len = 0;
>> + io_enter->status = RMI_DEV_COMM_NONE;
>> +
>> + ret = ___do_dev_communicate(type, tsm);
>
> Think up a more meaningful name. Counting _ doesn't make for readable code.
>
I am not sure about this. What do you think?
modified drivers/virt/coco/arm-cca-host/rmi-da.c
@@ -188,7 +188,7 @@ static inline gfp_t cache_obj_id_to_gfp_flags(u8 cache_obj_id)
return GFP_KERNEL_ACCOUNT;
}
-static int ___do_dev_communicate(enum dev_comm_type type, struct pci_tsm *tsm)
+static int __do_dev_communicate(enum dev_comm_type type, struct pci_tsm *tsm)
{
gfp_t cache_alloc_flags;
int ret, nbytes, cp_len;
@@ -319,7 +319,7 @@ static int ___do_dev_communicate(enum dev_comm_type type, struct pci_tsm *tsm)
return 0;
}
-static int __do_dev_communicate(enum dev_comm_type type,
+static int do_dev_communicate(enum dev_comm_type type,
struct pci_tsm *tsm, unsigned long error_state)
{
int ret;
@@ -331,7 +331,7 @@ static int __do_dev_communicate(enum dev_comm_type type,
io_enter->resp_len = 0;
io_enter->status = RMI_DEV_COMM_NONE;
- ret = ___do_dev_communicate(type, tsm);
+ ret = __do_dev_communicate(type, tsm);
if (ret) {
if (type == PDEV_COMMUNICATE)
rmi_pdev_abort(virt_to_phys(pf0_dsc->rmm_pdev));
@@ -355,14 +355,14 @@ static int __do_dev_communicate(enum dev_comm_type type,
return state;
}
-static int do_dev_communicate(enum dev_comm_type type, struct pci_tsm *tsm,
- unsigned long target_state,
- unsigned long error_state)
+static int move_dev_to_state(enum dev_comm_type type, struct pci_tsm *tsm,
+ unsigned long target_state,
+ unsigned long error_state)
{
int state;
do {
- state = __do_dev_communicate(type, tsm, error_state);
+ state = do_dev_communicate(type, tsm, error_state);
if (state == target_state || state == error_state)
return state;
@@ -374,7 +374,7 @@ static int do_dev_communicate(enum dev_comm_type type, struct pci_tsm *tsm,
static int do_pdev_communicate(struct pci_tsm *tsm, enum rmi_pdev_state target_state)
{
- return do_dev_communicate(PDEV_COMMUNICATE, tsm, target_state, RMI_PDEV_ERROR);
+ return move_dev_to_state(PDEV_COMMUNICATE, tsm, target_state, RMI_PDEV_ERROR);
}
static int parse_certificate_chain(struct pci_tsm *tsm)
-aneesh
next prev parent reply other threads:[~2025-10-30 16:20 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-27 9:55 [PATCH RESEND v2 00/12] coc: tsm: Implement ->connect()/->disconnect() callbacks for ARM CCA IDE setup Aneesh Kumar K.V (Arm)
2025-10-27 9:55 ` [PATCH RESEND v2 01/12] KVM: arm64: RMI: Export kvm_has_da_feature Aneesh Kumar K.V (Arm)
2025-10-29 16:39 ` Jonathan Cameron
2025-10-27 9:55 ` [PATCH RESEND v2 02/12] firmware: smccc: coco: Manage arm-smccc platform device and CCA auxiliary drivers Aneesh Kumar K.V (Arm)
2025-10-29 16:52 ` Jonathan Cameron
2025-10-27 9:55 ` [PATCH RESEND v2 03/12] coco: guest: arm64: Drop dummy RSI platform device stub Aneesh Kumar K.V (Arm)
2025-10-29 16:54 ` Jonathan Cameron
2025-10-27 9:55 ` [PATCH RESEND v2 04/12] coco: host: arm64: Add host TSM callback and IDE stream allocation support Aneesh Kumar K.V (Arm)
2025-10-29 17:18 ` Jonathan Cameron
2025-10-27 9:55 ` [PATCH RESEND v2 05/12] coco: host: arm64: Build and register RMM pdev descriptors Aneesh Kumar K.V (Arm)
2025-10-29 17:37 ` Jonathan Cameron
2025-10-30 8:44 ` Aneesh Kumar K.V
2025-10-30 10:00 ` Jonathan Cameron
2025-10-27 9:55 ` [PATCH RESEND v2 06/12] coco: host: arm64: Add RMM device communication helpers Aneesh Kumar K.V (Arm)
2025-10-29 18:33 ` Jonathan Cameron
2025-10-30 9:18 ` Aneesh Kumar K.V
2025-10-30 10:00 ` Jonathan Cameron
2025-10-30 14:04 ` Aneesh Kumar K.V
2025-10-30 18:02 ` Jonathan Cameron
2025-10-30 16:20 ` Aneesh Kumar K.V [this message]
2025-10-30 18:12 ` Jonathan Cameron
2025-10-31 8:04 ` Aneesh Kumar K.V
2025-10-31 12:07 ` Jonathan Cameron
2025-10-27 9:55 ` [PATCH RESEND v2 07/12] coco: host: arm64: Add helper to stop and tear down an RMM pdev Aneesh Kumar K.V (Arm)
2025-10-29 18:34 ` Jonathan Cameron
2025-10-27 9:55 ` [PATCH RESEND v2 08/12] coco: host: arm64: Instantiate RMM pdev during device connect Aneesh Kumar K.V (Arm)
2025-10-29 18:38 ` Jonathan Cameron
2025-10-27 9:55 ` [PATCH RESEND v2 09/12] X.509: Make certificate parser public Aneesh Kumar K.V (Arm)
2025-10-27 9:56 ` [PATCH RESEND v2 10/12] X.509: Parse Subject Alternative Name in certificates Aneesh Kumar K.V (Arm)
2025-10-27 9:56 ` [PATCH RESEND v2 11/12] X.509: Move certificate length retrieval into new helper Aneesh Kumar K.V (Arm)
2025-10-27 9:56 ` [PATCH RESEND v2 12/12] coco: host: arm64: Register device public key with RMM Aneesh Kumar K.V (Arm)
2025-10-29 17:19 ` Jason Gunthorpe
2025-10-29 18:53 ` Jonathan Cameron
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