Messages in this thread |  | | Subject | Re: [PATCH 1/1] ARM: LPAE: use phys_addr_t instead of unsigned long in outercache hooks | From | "Leizhen (ThunderTown)" <> | Date | Tue, 29 Dec 2020 14:31:50 +0800 |
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On 2020/12/26 20:15, Russell King - ARM Linux admin wrote: > On Sat, Dec 26, 2020 at 10:18:08AM +0800, Leizhen (ThunderTown) wrote: >> On 2020/12/25 19:44, Zhen Lei wrote: >>> The outercache of some Hisilicon SOCs support physical addresses wider >>> than 32-bits. The unsigned long datatype is not sufficient for mapping >>> physical addresses >= 4GB. The commit ad6b9c9d78b9 ("ARM: 6671/1: LPAE: >>> use phys_addr_t instead of unsigned long in outercache functions") has >>> already modified the outercache functions. But the parameters of the >>> outercache hooks are not changed. This patch use phys_addr_t instead of >>> unsigned long in outercache hooks: inv_range, clean_range, flush_range. >>> >>> To ensure the outercache that does not support LPAE works properly, do >>> cast phys_addr_t to unsigned long by adding a middle-tier function. >> >> This patch will impact the outercache drivers that have not been merged into >> the kernel. They should also update the datatype of the outercache hooks. > > This isn't much of a concern to mainline. If it's that big a problem > for you, then please consider merging your code into mainline so that > everyone can benefit from it.
All right, I got it.
>
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