linux/drivers/message/fusion
Christophe JAILLET 706dc3b919 scsi: message: fusion: mptctl: Use dma_alloc_coherent()
In [1], Christoph Hellwig has proposed to remove the wrappers in
include/linux/pci-dma-compat.h.

Some reasons why this API should be removed have been given by Julia
Lawall in [2].

When memory is allocated in kbuf_alloc_2_sgl() GFP_KERNEL can be used
because this function already uses the GFP_USER flag for some memory
allocation and not spin_lock is taken in the between.

When memory is allocated in mptctl_do_mpt_command() GFP_KERNEL can be used
because this function already uses copy_from_user() and this function can
sleep.

When memory is allocated in mptctl_hp_hostinfo() GFP_KERNEL can be used
because this function already uses mpt_config() and this function has an
explicit might_sleep().

When memory is allocated in mptctl_hp_targetinfo() GFP_KERNEL can be used
because this function already uses mpt_config() and this function has an
explicit might_sleep().

[1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@infradead.org/
[2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/

Link: https://lore.kernel.org/r/516375d6d06114484533baf03aae351306100246.1641500561.git.christophe.jaillet@wanadoo.fr
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-01-10 10:33:52 -05:00
..
lsi scsi: message: mptlan: Replace one-element array with flexible-array member 2021-04-01 23:03:10 -04:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mptbase.c scsi: message: fusion: mptbase: Use dma_alloc_coherent() 2022-01-10 10:33:51 -05:00
mptbase.h scsi: message: fusion: Remove unused mpt_pci driver .probe() 'id' parameter 2021-10-12 17:37:15 -05:00
mptctl.c scsi: message: fusion: mptctl: Use dma_alloc_coherent() 2022-01-10 10:33:52 -05:00
mptctl.h
mptdebug.h scsi: message: fusion: Avoid -Wempty-body warnings 2021-04-01 22:55:25 -04:00
mptfc.c scsi: message: fusion: Switch to attribute groups 2021-10-16 21:45:53 -04:00
mptlan.c scsi: message: fusion: Remove usage of the deprecated "pci-dma-compat.h" API 2022-01-10 10:33:51 -05:00
mptlan.h scsi: fusion: fix if-statement empty body warning 2020-03-11 23:07:57 -04:00
mptsas.c scsi: message: fusion: mptsas: Use dma_alloc_coherent() 2022-01-10 10:33:52 -05:00
mptsas.h scsi: message: fusion: Remove in_interrupt() usage in mptsas_cleanup_fw_event_q() 2020-12-01 00:03:54 -05:00
mptscsih.c scsi: message: fusion: Switch to attribute groups 2021-10-16 21:45:53 -04:00
mptscsih.h scsi: message: fusion: Switch to attribute groups 2021-10-16 21:45:53 -04:00
mptspi.c scsi: message: fusion: Switch to attribute groups 2021-10-16 21:45:53 -04:00