xcan_update_...e_after_rxtx(9)

✨ xcan_update_error_state_after_rxtx — a Kernel API Manual moment ✨

okay so bestie, this is a page from the Kernel API Manual, and the star of the show is xcan_update_error_state_after_rxtx. she's a little function with a big job and honestly? iconic. let's get into it 💅

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🎀 NAME 🎀

xcan_update_error_state_after_rxtx — Update CAN error state after RX/TX

like, that's literally her whole thing. update the CAN error state, after RX or TX. no cap. 💖

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🌸 SYNOPSIS 🌸

void xcan_update_error_state_after_rxtx (struct net_device *ndev );

she returns void (no return value, she gives nothing back and that's valid 💅) and she takes exactly one argument.

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🦋 ARGUMENTS 🦋

• ndev — Pointer to net_device structure ✨ that's it. that's the whole arg list. one pointer, one job, main character energy.

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🌈 DESCRIPTION 🌈

so here's the vibe check 👑 — if the device is hanging out in a ERROR-WARNING or ERROR-PASSIVE state, this function checks whether the RX/TX that just happened caused it to drop down to a lesser state, and then it sets the interface state accordingly. like she's doing the little check-in, seeing if things calmed down, and updating the receipts. 🫶

that's it, that's the whole lore. no extra drama. ✨

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💜 SEE ALSO 💜

okay this list is LONG and she did not come alone, she brought the whole friend group 😭 —

• Kernel file ./drivers/net/can/xilinx_can.c
• struct xcan_priv(9)
• xcan_write_reg_le(9)
• xcan_read_reg_le(9)
• xcan_write_reg_be(9)
• xcan_read_reg_be(9)
• xcan_rx_int_mask(9)
• set_reset_mode(9)
• xcan_set_bittiming(9)
• xcan_chip_start(9)
• xcan_do_set_mode(9)
• xcan_write_frame(9)
• xcan_start_xmit_fifo(9)
• xcan_start_xmit_mailbox(9)
• xcan_start_xmit(9)
• xcan_rx(9)
• xcanfd_rx(9)
• xcan_current_error_state(9)
• xcan_set_error_state(9)
• xcan_err_interrupt(9)
• xcan_state_interrupt(9)
• xcan_rx_fifo_get_next_frame(9)
• xcan_rx_poll(9)
• xcan_tx_interrupt(9)
• xcan_interrupt(9)
• xcan_chip_stop(9)
• xcan_open(9)
• xcan_close(9)
• xcan_get_berr_counter(9)
• xcan_get_auto_tdcv(9)
• xcan_suspend(9)
• xcan_resume(9)
• xcan_runtime_suspend(9)
• xcan_runtime_resume(9)
• xcan_probe(9)
• xcan_remove(9)

literally the whole squad fr fr 🔥

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and that's the page bestie!! 🎀 she lives over in ./drivers/net/can and this edition is dated October 2026 — so like, future vibes only. mwah, go read some more man pages, ily 🫶💖✨