fc_find_rport_by_wwpn(9)

💅 fc_find_rport_by_wwpn(9) — the kernel API manual, but make it make sense

okay so bestie, welcome to section 9 of the Kernel API Manual ✨ this one's a lil function called fc_find_rport_by_wwpn, and honestly? the name literally tells you everything. it finds the fc_rport pointer for a given wwpn. that's it. that's the gig. 🎀

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🦋 NAME

fc_find_rport_by_wwpn — find the fc_rport pointer for a given wwpn

like, you hand it a wwpn, it hands you back the matching fc_rport pointer. matchmaker behavior, fr fr 💖

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✨ SYNOPSIS

struct fc_rport * fc_find_rport_by_wwpn (struct Scsi_Host *shost , u64
wwpn );

look at that signature. struct fc_rport * coming back at you, two args going in. no cap, it's giving "small function, big responsibility" 👑

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🌸 ARGUMENTS

• shost — the host the fc_rport is associated with. like, which host is this rport even hanging out with? that one. 🫶
• wwpn — the wwpn of the fc_rport device. the actual identifying vibe you're searching for. 🔍

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💀 NOTES

This routine assumes no locks are held on entry.

read that again, bestie. no locks are held on entry. so if you're out here calling this while holding a lock, that's on you, not the function. locking is your main character moment to handle 🙈

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🧚 SEE ALSO

buckle up, this list is long and honestly kind of iconic. all of these live in the kernel file ./drivers/scsi/scsi_transport_fc.c 💜

• fc_get_event_number(9)
• fc_host_post_fc_event(9)
• fc_host_post_event(9)
• fc_host_post_vendor_event(9)
• fc_host_fpin_rcv(9)
• fc_eh_timed_out(9)
• fc_queue_work(9)
• fc_flush_work(9)
• fc_queue_devloss_work(9)
• fc_flush_devloss(9)
• fc_remove_host(9)
• fc_starget_delete(9)
• fc_rport_final_delete(9)
• fc_remote_port_create(9)
• fc_remote_port_add(9)
• fc_remote_port_delete(9)
• fc_remote_port_rolechg(9)
• fc_timeout_deleted_rport(9)
• fc_timeout_fail_rport_io(9)
• fc_scsi_scan_rport(9)
• fc_block_rport(9)
• fc_block_scsi_eh(9)
• fc_vport_setup(9)
• fc_vport_create(9)
• fc_vport_terminate(9)
• fc_vport_sched_delete(9)
• fc_bsg_job_timeout(9)
• fc_bsg_host_dispatch(9)
• fc_bsg_rport_dispatch(9)
• fc_bsg_hostadd(9)
• fc_bsg_rportadd(9)
• fc_bsg_remove(9)

thirty-two entries. i counted. we ate. 🔥

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okay and finally, the lil sign-off moment 🎀 this page comes from ./drivers/scsi, and it's dated October 2026 — so yeah, it's a whole section 9 kernel manual page, future-dated and everything. slay. go find your rports, bestie 💅✨