diff options
| author | Arvind Sankar <nivedita@alum.mit.edu> | 2020-05-20 19:07:54 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2020-05-20 19:08:19 +0200 |
| commit | 23d5b73fbfd787c4c63841912b079eac000a7414 (patch) | |
| tree | 4fc961900e5b6f62e1e2c953c5b0e345a77cc24d /drivers/firmware/efi/libstub/efistub.h | |
| parent | 8fb331e10b63888e944a8a0dcf79b17e93b475ba (diff) | |
| download | lwn-23d5b73fbfd787c4c63841912b079eac000a7414.tar.gz lwn-23d5b73fbfd787c4c63841912b079eac000a7414.zip | |
efi/libstub: Implement printk-style logging
Use the efi_printk function in efi_info/efi_err, and add efi_debug. This
allows formatted output at different log levels.
Add the notion of a loglevel instead of just quiet/not-quiet, and
parse the efi=debug kernel parameter in addition to quiet.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200520170223.GA3333632@rani.riverdale.lan/
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'drivers/firmware/efi/libstub/efistub.h')
| -rw-r--r-- | drivers/firmware/efi/libstub/efistub.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h index caa7dcc71c69..3a323a009836 100644 --- a/drivers/firmware/efi/libstub/efistub.h +++ b/drivers/firmware/efi/libstub/efistub.h @@ -6,6 +6,7 @@ #include <linux/compiler.h> #include <linux/efi.h> #include <linux/kernel.h> +#include <linux/kern_levels.h> #include <linux/types.h> #include <asm/efi.h> @@ -34,7 +35,7 @@ extern bool efi_nochunk; extern bool efi_nokaslr; extern bool efi_noinitrd; -extern bool efi_quiet; +extern int efi_loglevel; extern bool efi_novamap; extern const efi_system_table_t *efi_system_table; @@ -49,11 +50,12 @@ extern const efi_system_table_t *efi_system_table; #endif -#define efi_info(msg) do { \ - if (!efi_quiet) efi_puts("EFI stub: "msg); \ -} while (0) - -#define efi_err(msg) efi_puts("EFI stub: ERROR: "msg) +#define efi_info(fmt, ...) \ + efi_printk(KERN_INFO fmt, ##__VA_ARGS__) +#define efi_err(fmt, ...) \ + efi_printk(KERN_ERR "ERROR: " fmt, ##__VA_ARGS__) +#define efi_debug(fmt, ...) \ + efi_printk(KERN_DEBUG "DEBUG: " fmt, ##__VA_ARGS__) /* Helper macros for the usual case of using simple C variables: */ #ifndef fdt_setprop_inplace_var |