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Subject[PATCH 13/16] scsi: mptsas: Use dma_alloc_coherent() in mptsas_exp_repmanufacture_info()
Date
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].


The only caller of mptsas_exp_repmanufacture_info() is
mptsas_probe_one_phy(). This function already calls sas_end_device_alloc()
or sas_expander_alloc(). They both already use GFP_KERNEL.

As no spin_lock is held at this point, it is safe to also use GFP_KERNEL
here.


[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/

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/message/fusion/mptsas.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 0363b2a2264d..9b40be04710c 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -2896,7 +2896,8 @@ mptsas_exp_repmanufacture_info(MPT_ADAPTER *ioc,

sz = sizeof(struct rep_manu_request) + sizeof(struct rep_manu_reply);

- data_out = pci_alloc_consistent(ioc->pcidev, sz, &data_out_dma);
+ data_out = dma_alloc_coherent(&ioc->pcidev->dev, sz, &data_out_dma,
+ GFP_KERNEL);
if (!data_out) {
printk(KERN_ERR "Memory allocation failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
--
2.32.0
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