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s390/pci: reshuffle struct used to write debug data 

zpci_err_insn writes stale stack content to the debugfs.

Ensure that the struct in zpci_err_insn is ordered in a way that
we don't have uninitialized holes in it. In addition to that
add the packed attribute.

Fixes: 3d8258e (s390/pci: move debug messages to debugfs)
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott 2015-10-09 11:07:06 +02:00 committed by Martin Schwidefsky
parent 48002bd5af
commit 7cc8944e13
1 changed files with 3 additions and 3 deletions
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6
arch/s390/pci/pci_insn.c
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@ -16,11 +16,11 @@
static inline void zpci_err_insn(u8 cc, u8 status, u64 req, u64 offset)
{
struct {
u8 cc;
u8 status;
u64 req;
u64 offset;
} data = {cc, status, req, offset};
u8 cc;
u8 status;
} __packed data = {req, offset, cc, status};
zpci_err_hex(&data, sizeof(data));
}