Rename them to reflect that these functions deal with user space format
XSAVE buffers.
copy_kernel_to_xstate() -> copy_uabi_from_kernel_to_xstate()
copy_user_to_xstate() -> copy_sigframe_from_user_to_xstate()
Again a clear statement that these functions deal with user space ABI.
Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210623121454.318485015@linutronix.de
void *get_xsave_addr(struct xregs_state *xsave, int xfeature_nr);
int xfeature_size(int xfeature_nr);
-int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf);
-int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf);
+int copy_uabi_from_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf);
+int copy_sigframe_from_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf);
void copy_dynamic_supervisor_to_kernel(struct xregs_state *xstate, u64 mask);
void copy_kernel_to_dynamic_supervisor(struct xregs_state *xstate, u64 mask);
}
fpu_force_restore(fpu);
- ret = copy_kernel_to_xstate(&fpu->state.xsave, kbuf ?: tmpbuf);
+ ret = copy_uabi_from_kernel_to_xstate(&fpu->state.xsave, kbuf ?: tmpbuf);
out:
vfree(tmpbuf);
if (use_xsave() && !fx_only) {
u64 init_bv = xfeatures_mask_user() & ~user_xfeatures;
- ret = copy_user_to_xstate(&fpu->state.xsave, buf_fx);
+ ret = copy_sigframe_from_user_to_xstate(&fpu->state.xsave, buf_fx);
if (ret)
goto out;
* Convert from a ptrace standard-format kernel buffer to kernel XSAVE[S] format
* and copy to the target thread. This is called from xstateregs_set().
*/
-int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf)
+int copy_uabi_from_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf)
{
unsigned int offset, size;
int i;
* XSAVE[S] format and copy to the target thread. This is called from the
* sigreturn() and rt_sigreturn() system calls.
*/
-int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf)
+int copy_sigframe_from_user_to_xstate(struct xregs_state *xsave,
+ const void __user *ubuf)
{
unsigned int offset, size;
int i;