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| author | Jann Horn <jannh@google.com> | 2026-04-30 16:15:33 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-05-28 21:24:45 -0700 |
| commit | 5a13e296a3e32a70db2a520d8611a53d7bde10e8 (patch) | |
| tree | ad27a1e987653ea1861fbfe4a0c19507aaba8568 /drivers/usb/usbip | |
| parent | bd99fcfc6219ebe36ae4d0bf5333b5ecc17b53df (diff) | |
| download | linux-next-5a13e296a3e32a70db2a520d8611a53d7bde10e8.tar.gz linux-next-5a13e296a3e32a70db2a520d8611a53d7bde10e8.zip | |
kcov: refactor common handle ID into kcov_common_handle_id
Store common handle IDs in "struct kcov_common_handle_id", which consumes
no space in non-KCOV builds.
This cleanup removes #ifdef boilerplate code from subsystems that
integrate with KCOV (in particular in usbip_common.h and skbuff.h, see the
diffstat).
This should also make it easier to add KCOV remote coverage to more
subsystems in the future.
Link: https://lore.kernel.org/20260430-kcov-refactor-common-handle-v1-1-23a0c7a0ba38@google.com
Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Eugenio Pérez <eperezma@redhat.com>
Cc: Hongren (Zenithal) Zheng <i@zenithal.me>
Cc: Jann Horn <jannh@google.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers/usb/usbip')
| -rw-r--r-- | drivers/usb/usbip/usbip_common.h | 29 | ||||
| -rw-r--r-- | drivers/usb/usbip/vhci_rx.c | 4 | ||||
| -rw-r--r-- | drivers/usb/usbip/vhci_sysfs.c | 2 |
3 files changed, 4 insertions, 31 deletions
diff --git a/drivers/usb/usbip/usbip_common.h b/drivers/usb/usbip/usbip_common.h index 282efca64a01..be4c5e65a7f8 100644 --- a/drivers/usb/usbip/usbip_common.h +++ b/drivers/usb/usbip/usbip_common.h @@ -282,9 +282,7 @@ struct usbip_device { void (*unusable)(struct usbip_device *); } eh_ops; -#ifdef CONFIG_KCOV - u64 kcov_handle; -#endif + struct kcov_common_handle_id kcov_handle; }; #define kthread_get_run(threadfn, data, namefmt, ...) \ @@ -339,29 +337,4 @@ static inline int interface_to_devnum(struct usb_interface *interface) return udev->devnum; } -#ifdef CONFIG_KCOV - -static inline void usbip_kcov_handle_init(struct usbip_device *ud) -{ - ud->kcov_handle = kcov_common_handle(); -} - -static inline void usbip_kcov_remote_start(struct usbip_device *ud) -{ - kcov_remote_start_common(ud->kcov_handle); -} - -static inline void usbip_kcov_remote_stop(void) -{ - kcov_remote_stop(); -} - -#else /* CONFIG_KCOV */ - -static inline void usbip_kcov_handle_init(struct usbip_device *ud) { } -static inline void usbip_kcov_remote_start(struct usbip_device *ud) { } -static inline void usbip_kcov_remote_stop(void) { } - -#endif /* CONFIG_KCOV */ - #endif /* __USBIP_COMMON_H */ diff --git a/drivers/usb/usbip/vhci_rx.c b/drivers/usb/usbip/vhci_rx.c index a75f4a898a41..a678e7c89837 100644 --- a/drivers/usb/usbip/vhci_rx.c +++ b/drivers/usb/usbip/vhci_rx.c @@ -261,9 +261,9 @@ int vhci_rx_loop(void *data) if (usbip_event_happened(ud)) break; - usbip_kcov_remote_start(ud); + kcov_remote_start_common(ud->kcov_handle); vhci_rx_pdu(ud); - usbip_kcov_remote_stop(); + kcov_remote_stop(); } return 0; diff --git a/drivers/usb/usbip/vhci_sysfs.c b/drivers/usb/usbip/vhci_sysfs.c index 5bc8c47788d4..b98d14c43d13 100644 --- a/drivers/usb/usbip/vhci_sysfs.c +++ b/drivers/usb/usbip/vhci_sysfs.c @@ -425,7 +425,7 @@ static ssize_t attach_store(struct device *dev, struct device_attribute *attr, vdev->ud.tcp_rx = tcp_rx; vdev->ud.tcp_tx = tcp_tx; vdev->ud.status = VDEV_ST_NOTASSIGNED; - usbip_kcov_handle_init(&vdev->ud); + vdev->ud.kcov_handle = kcov_common_handle(); spin_unlock(&vdev->ud.lock); spin_unlock_irqrestore(&vhci->lock, flags); |