From 60c6946675fc06dd2fd2b7a4b6fd1c1f046f1056 Mon Sep 17 00:00:00 2001 From: Xabier Marquiegui Date: Thu, 12 Oct 2023 00:39:53 +0200 Subject: posix-clock: introduce posix_clock_context concept Add the necessary structure to support custom private-data per posix-clock user. The previous implementation of posix-clock assumed all file open instances need access to the same clock structure on private_data. The need for individual data structures per file open instance has been identified when developing support for multiple timestamp event queue users for ptp_clock. Signed-off-by: Xabier Marquiegui Suggested-by: Richard Cochran Suggested-by: Vinicius Costa Gomes Signed-off-by: David S. Miller --- drivers/ptp/ptp_chardev.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) (limited to 'drivers/ptp/ptp_chardev.c') diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c index 362bf756e6b7..0ba3e7064df2 100644 --- a/drivers/ptp/ptp_chardev.c +++ b/drivers/ptp/ptp_chardev.c @@ -101,14 +101,16 @@ int ptp_set_pinfunc(struct ptp_clock *ptp, unsigned int pin, return 0; } -int ptp_open(struct posix_clock *pc, fmode_t fmode) +int ptp_open(struct posix_clock_context *pccontext, fmode_t fmode) { return 0; } -long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) +long ptp_ioctl(struct posix_clock_context *pccontext, unsigned int cmd, + unsigned long arg) { - struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); + struct ptp_clock *ptp = + container_of(pccontext->clk, struct ptp_clock, clock); struct ptp_sys_offset_extended *extoff = NULL; struct ptp_sys_offset_precise precise_offset; struct system_device_crosststamp xtstamp; @@ -432,9 +434,11 @@ out: return err; } -__poll_t ptp_poll(struct posix_clock *pc, struct file *fp, poll_table *wait) +__poll_t ptp_poll(struct posix_clock_context *pccontext, struct file *fp, + poll_table *wait) { - struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); + struct ptp_clock *ptp = + container_of(pccontext->clk, struct ptp_clock, clock); poll_wait(fp, &ptp->tsev_wq, wait); @@ -443,10 +447,11 @@ __poll_t ptp_poll(struct posix_clock *pc, struct file *fp, poll_table *wait) #define EXTTS_BUFSIZE (PTP_BUF_TIMESTAMPS * sizeof(struct ptp_extts_event)) -ssize_t ptp_read(struct posix_clock *pc, - uint rdflags, char __user *buf, size_t cnt) +ssize_t ptp_read(struct posix_clock_context *pccontext, uint rdflags, + char __user *buf, size_t cnt) { - struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock); + struct ptp_clock *ptp = + container_of(pccontext->clk, struct ptp_clock, clock); struct timestamp_event_queue *queue = &ptp->tsevq; struct ptp_extts_event *event; unsigned long flags; -- cgit v1.2.3