diff options
| author | Cédric Le Goater <clg@kaod.org> | 2021-03-31 17:45:10 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-04-14 16:04:14 +0300 |
| commit | a74ce5926b20cd0e6d624a9b2527073a96dfed7f (patch) | |
| tree | 8a828620cbdc8503315a90c015476d863fe7bf10 /arch/powerpc/sysdev | |
| parent | 5159d9872823230669b7949ba3caf18c4c314846 (diff) | |
| download | linux-a74ce5926b20cd0e6d624a9b2527073a96dfed7f.tar.xz | |
powerpc/xive: Drop check on irq_data in xive_core_debug_show()
When looping on IRQ descriptor, irq_data is always valid.
Fixes: 930914b7d528 ("powerpc/xive: Add a debugfs file to dump internal XIVE state")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210331144514.892250-6-clg@kaod.org
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/xive/common.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c index 09da16e40320..41753aaa2507 100644 --- a/arch/powerpc/sysdev/xive/common.c +++ b/arch/powerpc/sysdev/xive/common.c @@ -1611,6 +1611,8 @@ static void xive_debug_show_irq(struct seq_file *m, struct irq_data *d) u32 target; u8 prio; u32 lirq; + struct xive_irq_data *xd; + u64 val; rc = xive_ops->get_irq_config(hw_irq, &target, &prio, &lirq); if (rc) { @@ -1621,17 +1623,14 @@ static void xive_debug_show_irq(struct seq_file *m, struct irq_data *d) seq_printf(m, "IRQ 0x%08x : target=0x%x prio=%02x lirq=0x%x ", hw_irq, target, prio, lirq); - if (d) { - struct xive_irq_data *xd = irq_data_get_irq_handler_data(d); - u64 val = xive_esb_read(xd, XIVE_ESB_GET); - - seq_printf(m, "flags=%c%c%c PQ=%c%c", - xd->flags & XIVE_IRQ_FLAG_STORE_EOI ? 'S' : ' ', - xd->flags & XIVE_IRQ_FLAG_LSI ? 'L' : ' ', - xd->flags & XIVE_IRQ_FLAG_H_INT_ESB ? 'H' : ' ', - val & XIVE_ESB_VAL_P ? 'P' : '-', - val & XIVE_ESB_VAL_Q ? 'Q' : '-'); - } + xd = irq_data_get_irq_handler_data(d); + val = xive_esb_read(xd, XIVE_ESB_GET); + seq_printf(m, "flags=%c%c%c PQ=%c%c", + xd->flags & XIVE_IRQ_FLAG_STORE_EOI ? 'S' : ' ', + xd->flags & XIVE_IRQ_FLAG_LSI ? 'L' : ' ', + xd->flags & XIVE_IRQ_FLAG_H_INT_ESB ? 'H' : ' ', + val & XIVE_ESB_VAL_P ? 'P' : '-', + val & XIVE_ESB_VAL_Q ? 'Q' : '-'); seq_puts(m, "\n"); } |