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authorLinus Walleij <linus.walleij@linaro.org>2022-06-30 11:41:20 +0300
committerakpm <akpm@linux-foundation.org>2022-07-18 03:14:36 +0300
commitb3c56f8f2064ae1b73e099d23a82ae1642e435a1 (patch)
treea93b05a5cb81ecb04c3e4b2eeda2f90f4f621bd9 /lib/test_free_pages.c
parent9c94bef9c91288cc51e861a7acaa52ebb48c0121 (diff)
downloadlinux-b3c56f8f2064ae1b73e099d23a82ae1642e435a1.tar.xz
lib/test_free_pages.c: pass a pointer to virt_to_page()
In a recent change to the Arm architecture with the end goal of removing highmem we need to convert virt_to_phys() and virt_to_pfn() to static inline functions. This will make them strongly typed. However since virt_to_* is always implemented as macros they have become polymorphic and accept both (void *) and e.g. unsigned long as arguments. Other functions such as virt_to_page() simply wrap virt_to_pfn() and get affected indirectly. To be able to proceed, patch mm to use (void *) as argument to affected functions in all instances. This patch (of 5): A pointer into virtual memory is represented by a (void *) not an u32, so the compiler warns: lib/test_free_pages.c:20:50: warning: passing argument 1 of 'virt_to_pfn' makes pointer from integer without a cast [-Wint-conversion] Fix this with an explicit cast. Link: https://lkml.kernel.org/r/20220630084124.691207-1-linus.walleij@linaro.org Link: https://lkml.kernel.org/r/20220630084124.691207-2-linus.walleij@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Marco Elver <elver@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib/test_free_pages.c')
-rw-r--r--lib/test_free_pages.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/test_free_pages.c b/lib/test_free_pages.c
index 25ae1ac2624a..9ebf6f5549f3 100644
--- a/lib/test_free_pages.c
+++ b/lib/test_free_pages.c
@@ -17,7 +17,7 @@ static void test_free_pages(gfp_t gfp)
for (i = 0; i < 1000 * 1000; i++) {
unsigned long addr = __get_free_pages(gfp, 3);
- struct page *page = virt_to_page(addr);
+ struct page *page = virt_to_page((void *)addr);
/* Simulate page cache getting a speculative reference */
get_page(page);