• Anshuman Khandual's avatar
    mm: define default value for FIRST_USER_ADDRESS · fac7757e
    Anshuman Khandual authored
    Currently most platforms define FIRST_USER_ADDRESS as 0UL duplication the
    same code all over.  Instead just define a generic default value (i.e 0UL)
    for FIRST_USER_ADDRESS and let the platforms override when required.  This
    makes it much cleaner with reduced code.
    
    The default FIRST_USER_ADDRESS here would be skipped in <linux/pgtable.h>
    when the given platform overrides its value via <asm/pgtable.h>.
    
    Link: https://lkml.kernel.org/r/1620615725-24623-1-git-send-email-anshuman.khandual@arm.comSigned-off-by: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
    Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>	[m68k]
    Acked-by: Guo Ren <guoren@kernel.org>			[csky]
    Acked-by: Stafford Horne <shorne@gmail.com>		[openrisc]
    Acked-by: Catalin Marinas <catalin.marinas@arm.com>	[arm64]
    Acked-by: default avatarMike Rapoport <rppt@linux.ibm.com>
    Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>	[RISC-V]
    Cc: Richard Henderson <rth@twiddle.net>
    Cc: Vineet Gupta <vgupta@synopsys.com>
    Cc: Catalin Marinas <catalin.marinas@arm.com>
    Cc: Will Deacon <will@kernel.org>
    Cc: Guo Ren <guoren@kernel.org>
    Cc: Brian Cain <bcain@codeaurora.org>
    Cc: Geert Uytterhoeven <geert@linux-m68k.org>
    Cc: Michal Simek <monstr@monstr.eu>
    Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
    Cc: Ley Foon Tan <ley.foon.tan@intel.com>
    Cc: Jonas Bonn <jonas@southpole.se>
    Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
    Cc: Stafford Horne <shorne@gmail.com>
    Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
    Cc: Paul Walmsley <paul.walmsley@sifive.com>
    Cc: Heiko Carstens <hca@linux.ibm.com>
    Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
    Cc: "David S. Miller" <davem@davemloft.net>
    Cc: Jeff Dike <jdike@addtoit.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Chris Zankel <chris@zankel.net>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    fac7757e
pgtable.h 12.3 KB