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powerpc/signal: Remove BUG_ON() in handler_signal functions 

There is already the same BUG_ON() check in do_signal() which
is the only caller of handle_rt_signal64() handle_rt_signal32() and
handle_signal32().

Remove those three redundant BUG_ON().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3582e10a341d523c9c3f1ac925c3aaefc9d9293d.1597770847.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2020-08-18 17:19:19 +00:00 committed by Michael Ellerman
parent 7d68c89169
commit 3fcfb5d1bf
2 changed files with 0 additions and 6 deletions
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4
arch/powerpc/kernel/signal_32.c
View File

@ -764,8 +764,6 @@ int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
unsigned long msr = regs->msr; unsigned long msr = regs->msr;
#endif #endif
BUG_ON(tsk != current);
/* Set up Signal Frame */ /* Set up Signal Frame */
/* Put a Real Time Context onto stack */ /* Put a Real Time Context onto stack */
rt_sf = get_sigframe(ksig, get_tm_stackpointer(tsk), sizeof(*rt_sf), 1); rt_sf = get_sigframe(ksig, get_tm_stackpointer(tsk), sizeof(*rt_sf), 1);
@ -1227,8 +1225,6 @@ int handle_signal32(struct ksignal *ksig, sigset_t *oldset,
unsigned long msr = regs->msr; unsigned long msr = regs->msr;
#endif #endif
BUG_ON(tsk != current);
/* Set up Signal Frame */ /* Set up Signal Frame */
frame = get_sigframe(ksig, get_tm_stackpointer(tsk), sizeof(*frame), 1); frame = get_sigframe(ksig, get_tm_stackpointer(tsk), sizeof(*frame), 1);
if (unlikely(frame == NULL)) if (unlikely(frame == NULL))

2
arch/powerpc/kernel/signal_64.c
View File

@ -822,8 +822,6 @@ int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
unsigned long msr = regs->msr; unsigned long msr = regs->msr;
#endif #endif
BUG_ON(tsk != current);
frame = get_sigframe(ksig, get_tm_stackpointer(tsk), sizeof(*frame), 0); frame = get_sigframe(ksig, get_tm_stackpointer(tsk), sizeof(*frame), 0);
if (unlikely(frame == NULL)) if (unlikely(frame == NULL))
goto badframe; goto badframe;