crypto: hisilicon/qm - make struct bus_type * const

In the function, qm_get_qos_value(), a struct bus_type * is used, but it
really should be a const pointer as it is not modified anywhere in the
function, and the driver core function it is used in expects a constant
pointer.

Cc: Weili Qian <qianweili@huawei.com>
Cc: Zhou Wang <wangzhou1@hisilicon.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Link: https://lore.kernel.org/r/20230313182918.1312597-29-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index e4c8443..fd1a38e 100644 (file)
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -3691,7 +3691,7 @@ static ssize_t qm_get_qos_value(struct hisi_qm *qm, const char *buf,
                               unsigned long *val,
                               unsigned int *fun_index)
 {
-       struct bus_type *bus_type = qm->pdev->dev.bus;
+       const struct bus_type *bus_type = qm->pdev->dev.bus;
        char tbuf_bdf[QM_DBG_READ_LEN] = {0};
        char val_buf[QM_DBG_READ_LEN] = {0};
        struct pci_dev *pdev;