Hi Andrew, i am a new developer，I have some questions to ask On Tue, 6 Jun 2023 at 05:56, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > > The patch titled > Subject: mm/early_ioremap.c: improve the execution efficiency of early_ioremap_setup() > has been added to the -mm mm-unstable branch. Its filename is > mm-improve-the-execution-efficiency-of-early_ioremap_setup.patch > > This patch will shortly appear at > https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-improve-the-execution-efficiency-of-early_ioremap_setup.patch > > This patch will later appear in the mm-unstable branch at > git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ， does this mean that patch will upcoming mainline? > > Before you just go and hit "reply", please: > a) Consider who else should be cc'ed > b) Prefer to cc a suitable mailing list as well I get mailing list by script "./scripts/checkpatch.pl",Do you mean my mailing list is wrong? > c) Ideally: find the original patch on the mailing list and do a > reply-to-all to that, adding suitable additional cc's “ original patch” means reply to all with the link below ? [PATCH] mm:Improve the execution efficiency of early_ioremap_setup() - Liam Ni (kernel.org) > > *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** > > The -mm tree is included into linux-next via the mm-everything > branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm > and is updated there every 2-3 working days > > ------------------------------------------------------ > From: Liam Ni <zhiguangni01@xxxxxxxxx> > Subject: mm/early_ioremap.c: improve the execution efficiency of early_ioremap_setup() > Date: Sat, 3 Jun 2023 10:31:16 +0800 > > Reduce the number of invalid loops of the function early_ioremap_setup() > to improve the efficiency of function execution > > Link: https://lkml.kernel.org/r/CACZJ9cU6t5sLoDwE6_XOg+UJLpZt4+qHfjYN2bA0s+3y9y6pQQ@xxxxxxxxxxxxxx > Signed-off-by: LiamNi <zhiguangni01@xxxxxxxxx> > Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > --- > > mm/early_ioremap.c | 8 +++----- > 1 file changed, 3 insertions(+), 5 deletions(-) > > --- a/mm/early_ioremap.c~mm-improve-the-execution-efficiency-of-early_ioremap_setup > +++ a/mm/early_ioremap.c > @@ -72,12 +72,10 @@ void __init early_ioremap_setup(void) > { > int i; > > - for (i = 0; i < FIX_BTMAPS_SLOTS; i++) > - if (WARN_ON(prev_map[i])) > - break; > - > - for (i = 0; i < FIX_BTMAPS_SLOTS; i++) > + for (i = 0; i < FIX_BTMAPS_SLOTS; i++) { > + WARN_ON_ONCE(prev_map[i]); > slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i); > + } > } > > static int __init check_early_ioremap_leak(void) > _ > > Patches currently in -mm which might be from zhiguangni01@xxxxxxxxx are > > mm-improve-the-execution-efficiency-of-early_ioremap_setup.patch >
