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x86/boot/e820: Clean up __e820__range_add() a bit

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- Use 'idx' index variable instead of a weird 'x'
 - Make the error message E820-specific
 - Group the code a bit better

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-15-mingo@kernel.org
This commit is contained in:
Ingo Molnar 2025-05-15 14:05:30 +02:00
parent 4a7a13e04c
commit a4803df3a2
1 changed files with 8 additions and 7 deletions
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15
arch/x86/kernel/e820.c
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@ -166,17 +166,18 @@ int e820__get_entry_type(u64 start, u64 end)
*/
static void __init __e820__range_add(struct e820_table *table, u64 start, u64 size, enum e820_type type)
{
int x = table->nr_entries;
int idx = table->nr_entries;
if (x >= ARRAY_SIZE(table->entries)) {
pr_err("too many entries; ignoring [mem %#010llx-%#010llx]\n",
start, start + size - 1);
if (idx >= ARRAY_SIZE(table->entries)) {
pr_err("too many E820 table entries; ignoring [mem %#010llx-%#010llx]\n",
start, start + size-1);
return;
}
table->entries[x].addr = start;
table->entries[x].size = size;
table->entries[x].type = type;
table->entries[idx].addr = start;
table->entries[idx].size = size;
table->entries[idx].type = type;
table->nr_entries++;
}