| commit | da9bc7263dc7e32d52dd922fe3f46eb7107c0143 | |
| author | Ralf Baechle <ralf@linux-mips.org> | |
| Thu, 24 May 2007 13:56:58 +0000 (24 14:56 +0100) | ||
| committer | Ralf Baechle <ralf@linux-mips.org> | |
| Mon, 11 Jun 2007 17:20:53 +0000 (11 18:20 +0100) | ||
| tree | edf2cb84da2d95f9444a7affd1432f802dee44a4 | treesnapshot (tar.gz zip) |
| parent | fbf6ede2ce05592661cec04e04b88f6bab00eb09 | commitdiff |
[MIPS] SMTC: Don't set and restore irqregs ptr from self_ipi.
This did corrupt register s0 which the caller of self_ipi expects to
be unchanged. This is a kernel bug which will only be triggered with
the compilers which compile __smtc_ipi_replay to use s0 across the
invocation of self_ipi. Gcc 4.1.2 does this, for example.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This did corrupt register s0 which the caller of self_ipi expects to
be unchanged. This is a kernel bug which will only be triggered with
the compilers which compile __smtc_ipi_replay to use s0 across the
invocation of self_ipi. Gcc 4.1.2 does this, for example.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| arch/mips/kernel/smtc-asm.S | diffblobblamehistory |