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| author | Kunwu Chan <chentao@kylinos.cn> | 2024-09-02 07:43:23 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2024-09-04 15:01:17 +0100 |
| commit | a4d398a573d0f0c98c39d4af1866a3edaec4959c (patch) | |
| tree | af00a750333e20eb6bd4afb8bf669b8d8c6def25 | |
| parent | de9c2c66ad8e787abec7c9d7eff4f8c3cdd28aed (diff) | |
| download | lwn-a4d398a573d0f0c98c39d4af1866a3edaec4959c.tar.gz lwn-a4d398a573d0f0c98c39d4af1866a3edaec4959c.zip | |
ARM: 9416/1: amba: make amba_bustype constant
Since commit d492cc2573a0 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the amba_bustype variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | drivers/amba/bus.c | 2 | ||||
| -rw-r--r-- | include/linux/amba/bus.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c index 34bc880ca20b..0230c43377c1 100644 --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c @@ -435,7 +435,7 @@ static const struct dev_pm_ops amba_pm = { * DMA configuration for platform and AMBA bus is same. So here we reuse * platform's DMA config routine. */ -struct bus_type amba_bustype = { +const struct bus_type amba_bustype = { .name = "amba", .dev_groups = amba_dev_groups, .match = amba_match, diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h index 958a55bcc708..dda2f3ea89cb 100644 --- a/include/linux/amba/bus.h +++ b/include/linux/amba/bus.h @@ -105,7 +105,7 @@ enum amba_vendor { AMBA_VENDOR_LSI = 0xb6, }; -extern struct bus_type amba_bustype; +extern const struct bus_type amba_bustype; #define to_amba_device(d) container_of_const(d, struct amba_device, dev) |