Re: [PATCH v4 6/8] crypto: qat - simplify adf_enable_aer()
From: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Date: 2021-09-28 11:12:04
Also in:
linux-crypto
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
Hi Uwe, On Mon, Sep 27, 2021 at 10:43:24PM +0200, Uwe Kleine-König wrote:
From: Uwe Kleine-König <redacted> A struct pci_driver is supposed to be constant and assigning .err_handler once per bound device isn't really sensible. Also as the function returns zero unconditionally let it return no value instead and simplify the callers accordingly. As a side effect this removes one user of struct pci_dev::driver. This member is planned to be removed. Signed-off-by: Uwe Kleine-König <redacted> ---
this patch does not build.
drivers/crypto/qat/qat_c3xxx/adf_drv.c:36:24: error: ‘adf_err_handler’ undeclared here (not in a function)
36 | .err_handler = adf_err_handler,
| ^~~~~~~~~~~~~~~
drivers/crypto/qat/qat_4xxx/adf_drv.c:303:24: error: ‘adf_err_handler’ undeclared here (not in a function)
303 | .err_handler = adf_err_handler,
| ^~~~~~~~~~~~~~~
drivers/crypto/qat/qat_c62x/adf_drv.c:36:24: error: ‘adf_err_handler’ undeclared here (not in a function)
36 | .err_handler = adf_err_handler,
| ^~~~~~~~~~~~~~~
drivers/crypto/qat/qat_dh895xcc/adf_drv.c:36:24: error: ‘adf_err_handler’ undeclared here (not in a function)
36 | .err_handler = adf_err_handler,
| ^~~~~~~~~~~~~~~
make[2]: *** [scripts/Makefile.build:277: drivers/crypto/qat/qat_c3xxx/adf_drv.o] Error 1
Below is an updated version of your patch that fixes the issues.
After fixing the patch you can add:
Acked-by: Giovanni Cabiddu [off-list ref]
Regards,
GC
----8<----
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <redacted>
Date: Mon, 27 Sep 2021 22:43:24 +0200
Subject: [PATCH] crypto: qat - simplify adf_enable_aer()
A struct pci_driver is supposed to be constant and assigning .err_handler
once per bound device isn't really sensible. Also as the function returns
zero unconditionally let it return no value instead and simplify the
callers accordingly.
As a side effect this removes one user of struct pci_dev::driver. This
member is planned to be removed.
Signed-off-by: Uwe Kleine-König <redacted>
---
drivers/crypto/qat/qat_4xxx/adf_drv.c | 7 ++-----
drivers/crypto/qat/qat_c3xxx/adf_drv.c | 7 ++-----
drivers/crypto/qat/qat_c62x/adf_drv.c | 7 ++-----
drivers/crypto/qat/qat_common/adf_aer.c | 10 +++-------
drivers/crypto/qat/qat_common/adf_common_drv.h | 4 +++-
drivers/crypto/qat/qat_dh895xcc/adf_drv.c | 7 ++-----
6 files changed, 14 insertions(+), 28 deletions(-)
diff --git a/drivers/crypto/qat/qat_4xxx/adf_drv.c b/drivers/crypto/qat/qat_4xxx/adf_drv.c
index 359fb7989dfb..71ef065914b2 100644
--- a/drivers/crypto/qat/qat_4xxx/adf_drv.c
+++ b/drivers/crypto/qat/qat_4xxx/adf_drv.c@@ -247,11 +247,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); - if (adf_enable_aer(accel_dev)) { - dev_err(&pdev->dev, "Failed to enable aer.\n"); - ret = -EFAULT; - goto out_err; - } + adf_enable_aer(accel_dev); if (pci_save_state(pdev)) { dev_err(&pdev->dev, "Failed to save pci state.\n");
@@ -304,6 +300,7 @@ static struct pci_driver adf_driver = { .probe = adf_probe, .remove = adf_remove, .sriov_configure = adf_sriov_configure, + .err_handler = &adf_err_handler, }; module_pci_driver(adf_driver);
diff --git a/drivers/crypto/qat/qat_c3xxx/adf_drv.c b/drivers/crypto/qat/qat_c3xxx/adf_drv.c
index cc6e75dc60de..2aef0bb791df 100644
--- a/drivers/crypto/qat/qat_c3xxx/adf_drv.c
+++ b/drivers/crypto/qat/qat_c3xxx/adf_drv.c@@ -33,6 +33,7 @@ static struct pci_driver adf_driver = { .probe = adf_probe, .remove = adf_remove, .sriov_configure = adf_sriov_configure, + .err_handler = &adf_err_handler, }; static void adf_cleanup_pci_dev(struct adf_accel_dev *accel_dev)
@@ -192,11 +193,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } pci_set_master(pdev); - if (adf_enable_aer(accel_dev)) { - dev_err(&pdev->dev, "Failed to enable aer\n"); - ret = -EFAULT; - goto out_err_free_reg; - } + adf_enable_aer(accel_dev); if (pci_save_state(pdev)) { dev_err(&pdev->dev, "Failed to save pci state\n");
diff --git a/drivers/crypto/qat/qat_c62x/adf_drv.c b/drivers/crypto/qat/qat_c62x/adf_drv.c
index bf251dfe74b3..56163083f161 100644
--- a/drivers/crypto/qat/qat_c62x/adf_drv.c
+++ b/drivers/crypto/qat/qat_c62x/adf_drv.c@@ -33,6 +33,7 @@ static struct pci_driver adf_driver = { .probe = adf_probe, .remove = adf_remove, .sriov_configure = adf_sriov_configure, + .err_handler = &adf_err_handler, }; static void adf_cleanup_pci_dev(struct adf_accel_dev *accel_dev)
@@ -192,11 +193,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } pci_set_master(pdev); - if (adf_enable_aer(accel_dev)) { - dev_err(&pdev->dev, "Failed to enable aer\n"); - ret = -EFAULT; - goto out_err_free_reg; - } + adf_enable_aer(accel_dev); if (pci_save_state(pdev)) { dev_err(&pdev->dev, "Failed to save pci state\n");
diff --git a/drivers/crypto/qat/qat_common/adf_aer.c b/drivers/crypto/qat/qat_common/adf_aer.c
index ed3e40bc56eb..fe9bb2f3536a 100644
--- a/drivers/crypto/qat/qat_common/adf_aer.c
+++ b/drivers/crypto/qat/qat_common/adf_aer.c@@ -166,11 +166,12 @@ static void adf_resume(struct pci_dev *pdev) dev_info(&pdev->dev, "Device is up and running\n"); } -static const struct pci_error_handlers adf_err_handler = { +const struct pci_error_handlers adf_err_handler = { .error_detected = adf_error_detected, .slot_reset = adf_slot_reset, .resume = adf_resume, }; +EXPORT_SYMBOL_GPL(adf_err_handler); /** * adf_enable_aer() - Enable Advance Error Reporting for acceleration device
@@ -179,17 +180,12 @@ static const struct pci_error_handlers adf_err_handler = { * Function enables PCI Advance Error Reporting for the * QAT acceleration device accel_dev. * To be used by QAT device specific drivers. - * - * Return: 0 on success, error code otherwise. */ -int adf_enable_aer(struct adf_accel_dev *accel_dev) +void adf_enable_aer(struct adf_accel_dev *accel_dev) { struct pci_dev *pdev = accel_to_pci_dev(accel_dev); - struct pci_driver *pdrv = pdev->driver; - pdrv->err_handler = &adf_err_handler; pci_enable_pcie_error_reporting(pdev); - return 0; } EXPORT_SYMBOL_GPL(adf_enable_aer);
diff --git a/drivers/crypto/qat/qat_common/adf_common_drv.h b/drivers/crypto/qat/qat_common/adf_common_drv.h
index 4261749fae8d..2141e0b22315 100644
--- a/drivers/crypto/qat/qat_common/adf_common_drv.h
+++ b/drivers/crypto/qat/qat_common/adf_common_drv.h@@ -95,7 +95,9 @@ void adf_ae_fw_release(struct adf_accel_dev *accel_dev); int adf_ae_start(struct adf_accel_dev *accel_dev); int adf_ae_stop(struct adf_accel_dev *accel_dev); -int adf_enable_aer(struct adf_accel_dev *accel_dev); +extern const struct pci_error_handlers adf_err_handler; + +void adf_enable_aer(struct adf_accel_dev *accel_dev); void adf_disable_aer(struct adf_accel_dev *accel_dev); void adf_reset_sbr(struct adf_accel_dev *accel_dev); void adf_reset_flr(struct adf_accel_dev *accel_dev);
diff --git a/drivers/crypto/qat/qat_dh895xcc/adf_drv.c b/drivers/crypto/qat/qat_dh895xcc/adf_drv.c
index 3976a81bd99b..acca56752aa0 100644
--- a/drivers/crypto/qat/qat_dh895xcc/adf_drv.c
+++ b/drivers/crypto/qat/qat_dh895xcc/adf_drv.c@@ -33,6 +33,7 @@ static struct pci_driver adf_driver = { .probe = adf_probe, .remove = adf_remove, .sriov_configure = adf_sriov_configure, + .err_handler = &adf_err_handler, }; static void adf_cleanup_pci_dev(struct adf_accel_dev *accel_dev)
@@ -192,11 +193,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } pci_set_master(pdev); - if (adf_enable_aer(accel_dev)) { - dev_err(&pdev->dev, "Failed to enable aer\n"); - ret = -EFAULT; - goto out_err_free_reg; - } + adf_enable_aer(accel_dev); if (pci_save_state(pdev)) { dev_err(&pdev->dev, "Failed to save pci state\n");
--
2.31.1