The patch titled
alpha: nautilus - fix compile failure with gcc-4.3
has been added to the -mm tree. Its filename is
alpha-nautilus-fix-compile-failure-with-gcc-43.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: alpha: nautilus - fix compile failure with gcc-4.3
From: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
init_srm_irq() deals with irq's #16 and above, but size of irq_desc
array on nautilus and some other system types is 16. So gcc-4.3
complains that "array subscript is above array bounds", even though
this function is never called on those systems.
This adds a check for NR_IRQS <= 16, which effectively optimizes
init_srm_irq() code away on problematic platforms.
Thanks to Daniel Drake <dsd@xxxxxxxxxx> for detailed analysis
of the problem.
Signed-off-by: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
Cc: Richard Henderson <rth@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/alpha/kernel/irq_srm.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN arch/alpha/kernel/irq_srm.c~alpha-nautilus-fix-compile-failure-with-gcc-43 arch/alpha/kernel/irq_srm.c
--- a/arch/alpha/kernel/irq_srm.c~alpha-nautilus-fix-compile-failure-with-gcc-43
+++ a/arch/alpha/kernel/irq_srm.c
@@ -63,6 +63,8 @@ init_srm_irqs(long max, unsigned long ig
{
long i;
+ if (NR_IRQS <= 16)
+ return;
for (i = 16; i < max; ++i) {
if (i < 64 && ((ignore_mask >> i) & 1))
continue;
_
Patches currently in -mm which might be from ink@xxxxxxxxxxxxxxxxxxxx are
alpha-fix-vmalloc-breakage.patch
alpha-fix-vmalloc-breakage-fix.patch
alpha-nautilus-fix-compile-failure-with-gcc-43.patch
alpha-nautilus-fix-hang-on-boot.patch
alpha-fix-rtc-on-marvel.patch
alpha-gitignore-vmlinuxlds.patch
alpha-make-pte_alloc_one_kernel-inline.patch
make-sure-nobodys-leaking-resources.patch
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