Re: Kernel panic on 'floppy' module load, Xen HVM, since 4.19.143

2020-09-29 Thread Denis Efremov
Hi, On 9/28/20 12:36 PM, Marek Marczykowski-Górecki wrote: > On Mon, Sep 28, 2020 at 07:02:19AM +0200, Jürgen Groß wrote: >> On 27.09.20 13:14, Marek Marczykowski-Górecki wrote: >>> Hi all, >>> >>> I get kernel panic on 'floppy' module load. If I blacklist the module, >>> then everything works.

[PATCH] xen-netback: use kstrdup() in connect_data_rings()

2020-06-03 Thread Denis Efremov
Use kstrdup() instead of opencoded alloc and copy. kzalloc() is excessive here. Signed-off-by: Denis Efremov --- drivers/net/xen-netback/xenbus.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index

Re: [Xen-devel] [PATCH v3 01/11] checkpatch: check for nested (un)?likely() calls

2019-08-31 Thread Denis Efremov
On 31.08.2019 19:45, Markus Elfring wrote: +# nested likely/unlikely calls +    if ($line =~ /\b(?:(?:un)?likely)\s*\(\s*!?\s*(IS_ERR(?:_OR_NULL|_VALUE)?|WARN)/) { +    WARN("LIKELY_MISUSE", >>> >>> How do you think about to use the specification >>>

Re: [Xen-devel] [PATCH v3 01/11] checkpatch: check for nested (un)?likely() calls

2019-08-31 Thread Denis Efremov
On 31.08.2019 12:15, Markus Elfring wrote: >> +# nested likely/unlikely calls >> +    if ($line =~ >> /\b(?:(?:un)?likely)\s*\(\s*!?\s*(IS_ERR(?:_OR_NULL|_VALUE)?|WARN)/) { >> +    WARN("LIKELY_MISUSE", > > How do you think about to use the specification >

[Xen-devel] [PATCH v3 01/11] checkpatch: check for nested (un)?likely() calls

2019-08-29 Thread Denis Efremov
/1559767582-11081-1-git-send-email-i...@metux.net/ Signed-off-by: Denis Efremov Cc: Joe Perches Cc: Andrew Morton Cc: Andy Whitcroft --- scripts/checkpatch.pl | 6 ++ 1 file changed, 6 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 93a7edfe0f05..56969ce06df4

[Xen-devel] [PATCH v3 04/11] xen/events: Remove unlikely() from WARN() condition

2019-08-29 Thread Denis Efremov
"unlikely(WARN(x))" is excessive. WARN() already uses unlikely() internally. Signed-off-by: Denis Efremov Cc: Boris Ostrovsky Cc: Juergen Gross Cc: Joe Perches Cc: Andrew Morton Cc: xen-devel@lists.xenproject.org --- drivers/xen/events/events_base.c | 2 +- 1 file changed, 1 inser