From: Mike Rapoport <firstname.lastname@example.org> To: Linus Torvalds <email@example.com> Cc: Andrew Morton <firstname.lastname@example.org>, David Miller <email@example.com>, Linux-MM <firstname.lastname@example.org>, kernel test robot <email@example.com>, Anatoly Pugachev <firstname.lastname@example.org>, email@example.com, stable <firstname.lastname@example.org> Subject: Re: [patch 09/11] sparc32: use PUD rather than PGD to get PMD in srmmu_nocache_init() Date: Sat, 23 May 2020 22:57:15 +0300 Message-ID: <20200523195715.GY1059226@linux.ibm.com> (raw) In-Reply-To: <CAHk-=wisORTa7QVPnFqNw9pFs62UiwgsD4C4d=MtYy1o4JPyGQ@mail.gmail.com> On Sat, May 23, 2020 at 12:10:27PM -0700, Linus Torvalds wrote: > On Sat, May 23, 2020 at 12:02 PM Mike Rapoport <email@example.com> wrote: > > > > Unfortunately, this fixes a compile warning but breaks the boot :( > > Argh. I delayed applying/merging this overnight to see if there were > any reports, but this came in after I'd already merged Andrew's > patches and pushed them out. Actually, it's really by chance I noticed it tonight, although still it was too late :) > So it's in my tree now as commit c2bc26f7ca1f ("sparc32: use PUD > rather than PGD to get PMD in srmmu_nocache_init()") > > > The correcteted patch is below, boot tested with qemu-systems-sparc. > > Mind sending a patch relative to the previous one that already got merged? Sure. > Also, would it perhaps be worth it to just make __nocache_fix() not > throw the type away? IOW, make it do something like > > #define __nocache_fix(VADDR) \ > ((__typeof__(VADDR))__va(__nocache_pa(VADDR))) > > or whatever? Wouldn't that show when those pgd/p4d/pud pointers get > mis-used because they don't end up dropping the type info.. Yes, I'll look into it. > Linus -- Sincerely yours, Mike.
next prev parent reply index Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <firstname.lastname@example.org> 2020-05-23 5:22 ` [patch 01/11] device-dax: don't leak kernel memory to user space after unloading kmem Andrew Morton 2020-05-23 5:22 ` [patch 03/11] rapidio: fix an error in get_user_pages_fast() error handling Andrew Morton 2020-05-23 5:22 ` [patch 06/11] kasan: disable branch tracing for core runtime Andrew Morton 2020-05-23 5:23 ` [patch 07/11] sh: include linux/time_types.h for sockios Andrew Morton 2020-05-23 5:23 ` [patch 09/11] sparc32: use PUD rather than PGD to get PMD in srmmu_nocache_init() Andrew Morton 2020-05-23 19:01 ` Mike Rapoport 2020-05-23 19:10 ` Linus Torvalds 2020-05-23 19:57 ` Mike Rapoport [this message] 2020-05-23 5:23 ` [patch 10/11] z3fold: fix use-after-free when freeing handles Andrew Morton 2020-05-25 0:08 ` + mmthp-stop-leaking-unreleased-file-pages.patch added to -mm tree Andrew Morton 2020-05-25 0:49 ` + mm-remove-vm_bug_onpageslab-from-page_mapcount.patch " Andrew Morton 2020-05-28 0:10 ` + relay-handle-alloc_percpu-returning-null-in-relay_open.patch " Andrew Morton
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