(subset) [PATCH 00/12] Miscellaneous Sparse fixes

[Michael Ellerman]

On Wed, 11 Oct 2023 16:36:59 +1100, Benjamin Gray wrote:
> There are many Sparse warnings in the kernel, including the powerpc
> directory. This series provides fixes for some low-hanging fruit found
> when trying to triage the warnings earlier this year. It addresses about
> 100 warnings (many have the same root cause).
> 
> I know there's concerns about making it harder to backport things. In
> general, as someone who was not around during the development of these
> features, I think that it is useful make the annotations as correct as
> possible. But it's no fuss if some/all of the patches are nacked for this
> reason. I just figured some of it might be useful instead of continuing to
> sit on it indefinitely.
> 
> [...]

Patch 1, and 3-12 applied to powerpc/next.

[01/12] powerpc/xive: Fix endian conversion size
        https://git.kernel.org/powerpc/c/ff7a60ab1e065257a0e467c13b519f4debcd7fcf
[03/12] powerpc: Explicitly reverse bytes when checking for byte reversal
        https://git.kernel.org/powerpc/c/340a60e3725b9a229eaf03a9b3f8538f22f6ac16
[04/12] powerpc: Use NULL instead of 0 for null pointers
        https://git.kernel.org/powerpc/c/ddfb7d9db843fd4fbdff81fb8a8743f865c3dd96
[05/12] powerpc: Remove extern from function implementations
        https://git.kernel.org/powerpc/c/419d5d112c2e1e78beda9c3299f71c35141d8dba
[06/12] powerpc: Annotate endianness of various variables and functions
        https://git.kernel.org/powerpc/c/2b4a6cc9a1a7cf6958c8b11f94e61c8e81b60b88
[07/12] powerpc/kvm: Force cast endianness of KVM shared regs
        https://git.kernel.org/powerpc/c/b7bce570430e42229fb63f775fcbb10f38b83c71
[08/12] powerpc/opal: Annotate out param endianness
        https://git.kernel.org/powerpc/c/8577dd00a6ba335bc359313599d6100522a1931c
[09/12] powerpc/uaccess: Cast away __user annotation after verification
        https://git.kernel.org/powerpc/c/c6519c6df0722e432f330afbc7c00d16d5be5c58
[10/12] powerpc: Cast away __iomem in low level IO routines
        https://git.kernel.org/powerpc/c/2c4ce3e65b1a543123ffcec4b021ad6ebd4e4e4e
[11/12] powerpc/eeh: Remove unnecessary cast
        https://git.kernel.org/powerpc/c/82f635243f209a85d3deb9f64439c3ea84cd4ecb
[12/12] powerpc/fadump: Annotate endianness cast with __force
        https://git.kernel.org/powerpc/c/b574b817cc7bfcc87bbc92b4b19525442401ae5e

cheers