Dave Jiang b913f4ffa2 ntb: Fix calculation ntb_transport_tx_free_entry() ... commit 5a7693e6bb upstream. ntb_transport_tx_free_entry() never returns 0 with the current calculation. If head == tail, then it would return qp->tx_max_entry. Change compare to tail >= head and when they are equal, a 0 would be returned. Fixes: e74bfeedad ("NTB: Add flow control to the ntb_netdev") Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: renlonglong <ren.longlong@h3c.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-09-13 09:53:53 +02:00
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hw	ntb: hw: amd: Fix debugfs_create_dir error checking	2023-07-08 13:55:44 -04:00
test	NTB: ntb_tool: Add check for devm_kcalloc	2023-07-08 10:51:56 -04:00
core.c	bus: Make remove callback return void	2021-07-21 11:53:42 +02:00
Kconfig	New feature to add support for NTB virtual MSI interrupts, the ability	2019-07-21 09:46:59 -07:00
Makefile	New feature to add support for NTB virtual MSI interrupts, the ability	2019-07-21 09:46:59 -07:00
msi.c	NTB/msi: Use struct_size() helper in devm_kzalloc()	2022-01-23 16:15:15 -05:00
ntb_transport.c	ntb: Fix calculation ntb_transport_tx_free_entry()	2023-09-13 09:53:53 +02:00