diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2022-06-30 10:41:20 +0200 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-17 17:14:36 -0700 |
| commit | b3c56f8f2064ae1b73e099d23a82ae1642e435a1 (patch) | |
| tree | a93b05a5cb81ecb04c3e4b2eeda2f90f4f621bd9 | |
| parent | 9c94bef9c91288cc51e861a7acaa52ebb48c0121 (diff) | |
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>
| -rw-r--r-- | lib/test_free_pages.c | 2 |
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); |