From a07ee86205808d36973440e68c7277f9ed63b87f Mon Sep 17 00:00:00 2001 From: Horms Date: Wed, 25 Jul 2007 16:06:25 +0900 Subject: [PATCH] [IA64] Ensure that machvec is set up takes place before serial console Parse the machvec command line option outside of the early_param() so that ia64_mv is set before any console intialisation that may result from early_param parsing. Signed-off-by: Simon Horman Signed-off-by: Tony Luck --- arch/ia64/kernel/machvec.c | 27 ++++++++++++++++++--------- arch/ia64/kernel/setup.c | 11 ++++++++--- include/asm-ia64/machvec.h | 1 + 3 files changed, 27 insertions(+), 12 deletions(-) diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c index 13df337508e..7ccb228ceed 100644 --- a/arch/ia64/kernel/machvec.c +++ b/arch/ia64/kernel/machvec.c @@ -13,14 +13,6 @@ struct ia64_machine_vector ia64_mv; EXPORT_SYMBOL(ia64_mv); -static __initdata const char *mvec_name; -static __init int setup_mvec(char *s) -{ - mvec_name = s; - return 0; -} -early_param("machvec", setup_mvec); - static struct ia64_machine_vector * __init lookup_machvec (const char *name) { @@ -41,7 +33,7 @@ machvec_init (const char *name) struct ia64_machine_vector *mv; if (!name) - name = mvec_name ? mvec_name : acpi_get_sysname(); + name = acpi_get_sysname(); mv = lookup_machvec(name); if (!mv) panic("generic kernel failed to find machine vector for" @@ -51,6 +43,23 @@ machvec_init (const char *name) printk(KERN_INFO "booting generic kernel on platform %s\n", name); } +void __init +machvec_init_from_cmdline(const char *cmdline) +{ + char str[64]; + const char *start; + char *end; + + if (! (start = strstr(cmdline, "machvec=")) ) + return machvec_init(NULL); + + strlcpy(str, start + strlen("machvec="), sizeof(str)); + if ( (end = strchr(str, ' ')) ) + *end = '\0'; + + return machvec_init(str); +} + #endif /* CONFIG_IA64_GENERIC */ void diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index cf06fe79904..7cecd296420 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -491,12 +491,17 @@ setup_arch (char **cmdline_p) efi_init(); io_port_init(); - parse_early_param(); - #ifdef CONFIG_IA64_GENERIC - machvec_init(NULL); + /* machvec needs to be parsed from the command line + * before parse_early_param() is called to ensure + * that ia64_mv is initialised before any command line + * settings may cause console setup to occur + */ + machvec_init_from_cmdline(*cmdline_p); #endif + parse_early_param(); + if (early_console_setup(*cmdline_p) == 0) mark_bsp_online(); diff --git a/include/asm-ia64/machvec.h b/include/asm-ia64/machvec.h index ca33eb181ff..5cf8bf1e805 100644 --- a/include/asm-ia64/machvec.h +++ b/include/asm-ia64/machvec.h @@ -275,6 +275,7 @@ struct ia64_machine_vector { extern struct ia64_machine_vector ia64_mv; extern void machvec_init (const char *name); +extern void machvec_init_from_cmdline(const char *cmdline); # else # error Unknown configuration. Update asm-ia64/machvec.h. -- 2.20.1