diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2022-02-14 22:22:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:40:35 +0300 |
| commit | 40a5c93a747389de01ee7195c414cb424710ea6f (patch) | |
| tree | 5b581402850cd687d2c2c397485cf7511aae9c71 /arch/csky | |
| parent | a49b687a75d2d42301ec9a5fda356750827900e7 (diff) | |
| download | linux-40a5c93a747389de01ee7195c414cb424710ea6f.tar.xz | |
uaccess: fix type mismatch warnings from access_ok()
[ Upstream commit 23fc539e81295b14b50c6ccc5baeb4f3d59d822d ]
On some architectures, access_ok() does not do any argument type
checking, so replacing the definition with a generic one causes
a few warnings for harmless issues that were never caught before.
Fix the ones that I found either through my own test builds or
that were reported by the 0-day bot.
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/csky')
| -rw-r--r-- | arch/csky/kernel/perf_callchain.c | 2 | ||||
| -rw-r--r-- | arch/csky/kernel/signal.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/csky/kernel/perf_callchain.c b/arch/csky/kernel/perf_callchain.c index 35318a635a5f..75e1f9df5f60 100644 --- a/arch/csky/kernel/perf_callchain.c +++ b/arch/csky/kernel/perf_callchain.c @@ -49,7 +49,7 @@ static unsigned long user_backtrace(struct perf_callchain_entry_ctx *entry, { struct stackframe buftail; unsigned long lr = 0; - unsigned long *user_frame_tail = (unsigned long *)fp; + unsigned long __user *user_frame_tail = (unsigned long __user *)fp; /* Check accessibility of one struct frame_tail beyond */ if (!access_ok(user_frame_tail, sizeof(buftail))) diff --git a/arch/csky/kernel/signal.c b/arch/csky/kernel/signal.c index 0ca49b5e3dd3..243228b0aa07 100644 --- a/arch/csky/kernel/signal.c +++ b/arch/csky/kernel/signal.c @@ -136,7 +136,7 @@ static inline void __user *get_sigframe(struct ksignal *ksig, static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) { - struct rt_sigframe *frame; + struct rt_sigframe __user *frame; int err = 0; struct csky_vdso *vdso = current->mm->context.vdso; |