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authorArnd Bergmann <arnd@arndb.de>2022-02-14 22:22:10 +0300
committerArnd Bergmann <arnd@arndb.de>2022-02-25 11:36:05 +0300
commit23fc539e81295b14b50c6ccc5baeb4f3d59d822d (patch)
treec4efbc0e265a797a6284fa49a66c19b16b6c5005 /arch/csky
parent52fe8d125c9afecc6fff6afd9950a388488df2ce (diff)
downloadlinux-23fc539e81295b14b50c6ccc5baeb4f3d59d822d.tar.xz
uaccess: fix type mismatch warnings from access_ok()
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>
Diffstat (limited to 'arch/csky')
-rw-r--r--arch/csky/kernel/perf_callchain.c2
-rw-r--r--arch/csky/kernel/signal.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/csky/kernel/perf_callchain.c b/arch/csky/kernel/perf_callchain.c
index 92057de08f4f..1612f4354087 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 c7b763d2f526..8867ddf3e6c7 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;
frame = get_sigframe(ksig, regs, sizeof(*frame));