4.9-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit d5654e156bc4d68a87bbaa6d7e020baceddf6e68 ]
Make sure that the HPMC (High Priority Machine Check) handler is 16-byte aligned and that it's length in the IVT is a multiple of 16 bytes. Otherwise PDC may decide not to call the HPMC crash handler.
Signed-off-by: Helge Deller deller@gmx.de Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/parisc/kernel/hpmc.S | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S index 38d461aec46d..407b3aa5aa07 100644 --- a/arch/parisc/kernel/hpmc.S +++ b/arch/parisc/kernel/hpmc.S @@ -83,6 +83,7 @@ END(hpmc_pim_data) .text
.import intr_save, code + .align 16 ENTRY_CFI(os_hpmc) .os_hpmc:
@@ -299,12 +300,15 @@ os_hpmc_6:
b . nop + .align 16 /* make function length multiple of 16 bytes */ ENDPROC_CFI(os_hpmc) .os_hpmc_end:
__INITRODATA +.globl os_hpmc_size .align 4 - .export os_hpmc_size + .type os_hpmc_size, @object + .size os_hpmc_size, 4 os_hpmc_size: .word .os_hpmc_end-.os_hpmc