[SPARC64]: Fix build failure when CONFIG_BUG is disabled.
When CONFIG_BUG is turned off, the standard trick of: switch (x) { case X: ... case Y: ... default: BUG(); }; to mark impossible cases does not work because BUG() evalutes to nothing and thus GCC just sees a fallthrough code path. Add an explicit KERN_ERR log message and a do_exit() to trap this case. Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -182,7 +182,9 @@ static void setup_tsb_params(struct mm_struct *mm, unsigned long tsb_idx, unsign
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break;
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default:
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BUG();
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printk(KERN_ERR "TSB[%s:%d]: Impossible TSB size %lu, killing process.\n",
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current->comm, current->pid, tsb_bytes);
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do_exit(SIGSEGV);
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};
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tte |= pte_sz_bits(page_sz);
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