'start_pos' is always 0, so remove it and remove the pointless check of 'pos <
0'
which can not ever be true as 'pos' is unsigned ...
No change in functionality.
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Borislav Petkov <b...@alien8.de>
Cc: Dave Hansen <dave.han...@linux.intel.com>
Cc: Fenghua Yu <fenghua...@intel.com>
Cc: H. Peter Anvin <h...@zytor.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Oleg Nesterov <o...@redhat.com>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Rik van Riel <r...@redhat.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Yu-cheng Yu <yu-cheng...@intel.com>
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
arch/x86/kernel/fpu/xstate.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index 9647e7256179..1f50fdaf4c5a 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -927,9 +927,9 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int
pkey,
static inline int
__copy_xstate_to_kernel(void *kbuf,
const void *data,
- unsigned int pos, unsigned int count, int start_pos,
int end_pos)
+ unsigned int pos, unsigned int count, int end_pos)
{
- if ((count == 0) || (pos < start_pos))
+ if (!count)
return 0;
if (end_pos < 0 || pos < end_pos) {
@@ -972,7 +972,7 @@ int copy_xstate_to_kernel(void *kbuf, struct xregs_state
*xsave, unsigned int po
offset = offsetof(struct xregs_state, header);
size = sizeof(header);
- ret = __copy_xstate_to_kernel(kbuf, &header, offset, size, 0, count);
+ ret = __copy_xstate_to_kernel(kbuf, &header, offset, size, count);
if (ret)
return ret;
@@ -986,7 +986,7 @@ int copy_xstate_to_kernel(void *kbuf, struct xregs_state
*xsave, unsigned int po
offset = xstate_offsets[i];
size = xstate_sizes[i];
- ret = __copy_xstate_to_kernel(kbuf, src, offset, size,
0, count);
+ ret = __copy_xstate_to_kernel(kbuf, src, offset, size,
count);
if (ret)
return ret;
@@ -1002,7 +1002,7 @@ int copy_xstate_to_kernel(void *kbuf, struct xregs_state
*xsave, unsigned int po
offset = offsetof(struct fxregs_state, sw_reserved);
size = sizeof(xstate_fx_sw_bytes);
- ret = __copy_xstate_to_kernel(kbuf, xstate_fx_sw_bytes, offset, size,
0, count);
+ ret = __copy_xstate_to_kernel(kbuf, xstate_fx_sw_bytes, offset, size,
count);
if (ret)
return ret;
@@ -1010,9 +1010,9 @@ int copy_xstate_to_kernel(void *kbuf, struct xregs_state
*xsave, unsigned int po
}
static inline int
-__copy_xstate_to_user(void __user *ubuf, const void *data, unsigned int pos,
unsigned int count, int start_pos, int end_pos)
+__copy_xstate_to_user(void __user *ubuf, const void *data, unsigned int pos,
unsigned int count, int end_pos)
{
- if ((count == 0) || (pos < start_pos))
+ if (!count)
return 0;
if (end_pos < 0 || pos < end_pos) {
@@ -1055,7 +1055,7 @@ int copy_xstate_to_user(void __user *ubuf, struct
xregs_state *xsave, unsigned i
offset = offsetof(struct xregs_state, header);
size = sizeof(header);
- ret = __copy_xstate_to_user(ubuf, &header, offset, size, 0, count);
+ ret = __copy_xstate_to_user(ubuf, &header, offset, size, count);
if (ret)
return ret;
@@ -1069,7 +1069,7 @@ int copy_xstate_to_user(void __user *ubuf, struct
xregs_state *xsave, unsigned i
offset = xstate_offsets[i];
size = xstate_sizes[i];
- ret = __copy_xstate_to_user(ubuf, src, offset, size, 0,
count);
+ ret = __copy_xstate_to_user(ubuf, src, offset, size,
count);
if (ret)
return ret;
@@ -1085,7 +1085,7 @@ int copy_xstate_to_user(void __user *ubuf, struct
xregs_state *xsave, unsigned i
offset = offsetof(struct fxregs_state, sw_reserved);
size = sizeof(xstate_fx_sw_bytes);
- ret = __copy_xstate_to_user(ubuf, xstate_fx_sw_bytes, offset, size, 0,
count);
+ ret = __copy_xstate_to_user(ubuf, xstate_fx_sw_bytes, offset, size,
count);
if (ret)
return ret;
--
2.11.0
