Re: [PATCH v2 1/3] libkmod: add a library notice log level print
From: Lucas De Marchi <hidden>
Date: 2021-09-21 05:54:10
Also in:
fstests, linux-block, linux-modules, lkml
On Mon, Aug 9, 2021 at 11:56 PM Luis Chamberlain [off-list ref] wrote:
quoted hunk ↗ jump to hunk
When you use pass the -v argument to modprobe we bump the log level from the default modprobe log level of LOG_WARNING (4) to LOG_NOTICE (5), however the library only has avaiable to print: #define DBG(ctx, arg...) kmod_log_cond(ctx, LOG_DEBUG, ## arg) #define INFO(ctx, arg...) kmod_log_cond(ctx, LOG_INFO, ## arg) #define ERR(ctx, arg...) kmod_log_cond(ctx, LOG_ERR, ## arg) LOG_INFO (6) however is too high of a level for it to be effective at printing anything when modprobe -v is passed. And so the only way in which modprobe -v can trigger the library to print a verbose message is to use ERR() but that always prints something and we don't want that in some situations. We need to add a new log level macro which uses LOG_NOTICE (5) for a "normal but significant condition" which users and developers can use to look underneath the hood to confirm if a situation is happening. Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> --- libkmod/libkmod-internal.h | 2 ++ 1 file changed, 2 insertions(+)diff --git a/libkmod/libkmod-internal.h b/libkmod/libkmod-internal.h index 398af9c..2e5e1bc 100644 --- a/libkmod/libkmod-internal.h +++ b/libkmod/libkmod-internal.h@@ -25,10 +25,12 @@ static _always_inline_ _printf_format_(2, 3) void # else # define DBG(ctx, arg...) kmod_log_null(ctx, ## arg) # endif +# define NOTICE(ctx, arg...) kmod_log_cond(ctx, LOG_NOTICE, ## arg) # define INFO(ctx, arg...) kmod_log_cond(ctx, LOG_INFO, ## arg) # define ERR(ctx, arg...) kmod_log_cond(ctx, LOG_ERR, ## arg) #else # define DBG(ctx, arg...) kmod_log_null(ctx, ## arg) +# define NOTICE(ctx, arg...) kmod_log_cond(ctx, LOG_NOTICE, ## arg)
did you mean kmod_log_null()? Lucas De Marchi
# define INFO(ctx, arg...) kmod_log_null(ctx, ## arg) # define ERR(ctx, arg...) kmod_log_null(ctx, ## arg) #endif -- 2.30.2