From: Greg Kurz <groug@kaod.org>
To: "Cédric Le Goater" <clg@kaod.org>
Cc: linuxppc-dev@lists.ozlabs.org, kernel test robot <lkp@intel.com>,
Dan Carpenter <dan.carpenter@oracle.com>
Subject: Re: [PATCH v2 5/8] powerpc/xive: Drop check on irq_data in xive_core_debug_show()
Date: Tue, 9 Mar 2021 10:18:41 +0100 [thread overview]
Message-ID: <20210309101841.2117540f@bahia.lan> (raw)
In-Reply-To: <20210303174857.1760393-6-clg@kaod.org>
On Wed, 3 Mar 2021 18:48:54 +0100
Cédric Le Goater <clg@kaod.org> wrote:
> When looping on IRQ descriptor, irq_data is always valid.
>
> Reported-by: kernel test robot <lkp@intel.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> Fixes: 930914b7d528 ("powerpc/xive: Add a debugfs file to dump internal XIVE state")
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
Reviewed-by: Greg Kurz <groug@kaod.org>
> arch/powerpc/sysdev/xive/common.c | 21 ++++++++++-----------
> 1 file changed, 10 insertions(+), 11 deletions(-)
>
> diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
> index 7581cb12bb53..60ebd6f4b31d 100644
> --- a/arch/powerpc/sysdev/xive/common.c
> +++ b/arch/powerpc/sysdev/xive/common.c
> @@ -1586,6 +1586,8 @@ 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) {
> @@ -1596,17 +1598,14 @@ 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");
> }
>
next prev parent reply other threads:[~2021-03-09 9:28 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-03 17:48 [PATCH v2 0/8] powerpc/xive: Map one IPI interrupt per node Cédric Le Goater
2021-03-03 17:48 ` [PATCH v2 1/8] powerpc/xive: Use cpu_to_node() instead of ibm, chip-id property Cédric Le Goater
2021-03-08 17:13 ` [PATCH v2 1/8] powerpc/xive: Use cpu_to_node() instead of ibm,chip-id property Greg Kurz
2021-03-09 15:33 ` Cédric Le Goater
2021-03-09 17:08 ` Daniel Henrique Barboza
2021-03-09 17:26 ` Cédric Le Goater
2021-03-09 17:26 ` Cédric Le Goater
2021-03-12 1:55 ` David Gibson
2021-03-12 1:55 ` David Gibson
2021-03-12 9:53 ` Cédric Le Goater
2021-03-12 9:53 ` Cédric Le Goater
2021-03-12 12:18 ` Daniel Henrique Barboza
2021-03-12 12:18 ` Daniel Henrique Barboza
2021-03-12 13:03 ` Greg Kurz
2021-03-12 13:03 ` Greg Kurz
2021-03-12 13:28 ` Cédric Le Goater
2021-03-12 13:28 ` Cédric Le Goater
2021-03-03 17:48 ` [PATCH v2 2/8] powerpc/xive: Introduce an IPI interrupt domain Cédric Le Goater
2021-03-08 17:55 ` Greg Kurz
2021-03-03 17:48 ` [PATCH v2 3/8] powerpc/xive: Remove useless check on XIVE_IPI_HW_IRQ Cédric Le Goater
2021-03-08 17:56 ` Greg Kurz
2021-03-03 17:48 ` [PATCH v2 4/8] powerpc/xive: Simplify xive_core_debug_show() Cédric Le Goater
2021-03-08 18:07 ` Greg Kurz
2021-03-08 18:11 ` Cédric Le Goater
2021-03-09 9:13 ` Greg Kurz
2021-03-09 9:42 ` Greg Kurz
2021-03-09 15:39 ` Cédric Le Goater
2021-03-03 17:48 ` [PATCH v2 5/8] powerpc/xive: Drop check on irq_data in xive_core_debug_show() Cédric Le Goater
2021-03-09 9:18 ` Greg Kurz [this message]
2021-03-03 17:48 ` [PATCH v2 6/8] powerpc/xive: Simplify the dump of XIVE interrupts under xmon Cédric Le Goater
2021-03-09 9:22 ` Greg Kurz
2021-03-03 17:48 ` [PATCH v2 7/8] powerpc/xive: Fix xmon command "dxi" Cédric Le Goater
2021-03-09 10:23 ` Greg Kurz
2021-03-09 15:49 ` Cédric Le Goater
2021-03-03 17:48 ` [PATCH v2 8/8] powerpc/xive: Map one IPI interrupt per node Cédric Le Goater
2021-03-09 13:23 ` Greg Kurz
2021-03-09 15:52 ` Cédric Le Goater
2021-03-30 16:18 ` Cédric Le Goater
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